Windows Analysis Report
kNp6KbvVoz.exe

Overview

General Information

Sample name: kNp6KbvVoz.exe
renamed because original name is a hash value
Original sample name: 0c6e0d5c6de6558eab55ce5fad0b8acd.exe
Analysis ID: 1544233
MD5: 0c6e0d5c6de6558eab55ce5fad0b8acd
SHA1: 7854ebd877d57d4cb951adc174b5d463e0140688
SHA256: 49432b3c2186b051d35f09423075574cc82dbac403e5a69f311d4451a5a0e3b4
Tags: 32exetrojan
Infos:

Detection

Stealc
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected Powershell download and execute
Yara detected Stealc
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after checking locale)
Machine Learning detection for sample
Searches for specific processes (likely to inject)
AV process strings found (often used to terminate AV products)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to create guard pages, often used to hinder reverse engineering and debugging
Contains functionality to dynamically determine API calls
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Detected potential crypto function
Extensive use of GetProcAddress (often used to hide API calls)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
One or more processes crash
PE file contains sections with non-standard names
Queries information about the installed CPU (vendor, model number etc)
Queries the volume information (name, serial number etc) of a device
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
Stealc Stealc is an information stealer advertised by its presumed developer Plymouth on Russian-speaking underground forums and sold as a Malware-as-a-Service since January 9, 2023. According to Plymouth's statement, stealc is a non-resident stealer with flexible data collection settings and its development is relied on other prominent stealers: Vidar, Raccoon, Mars and Redline.Stealc is written in C and uses WinAPI functions. It mainly targets date from web browsers, extensions and Desktop application of cryptocurrency wallets, and from other applications (messengers, email clients, etc.). The malware downloads 7 legitimate third-party DLLs to collect sensitive data from web browsers, including sqlite3.dll, nss3.dll, vcruntime140.dll, mozglue.dll, freebl3.dll, softokn3.dll and msvcp140.dll. It then exfiltrates the collected information file by file to its C2 server using HTTP POST requests. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.stealc

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: kNp6KbvVoz.exe Avira: detected
Found malware configuration
Source: 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp Malware Configuration Extractor: StealC {"C2 url": "http://194.15.46.65/7e57db3b864b30f1.php", "Botnet": "LogsDiller"}
Multi AV Scanner detection for domain / URL
Source: http://194.15.46.65/7e57db3b864b30f1.php Virustotal: Detection: 16% Perma Link
Multi AV Scanner detection for submitted file
Source: kNp6KbvVoz.exe ReversingLabs: Detection: 73%
Source: kNp6KbvVoz.exe Virustotal: Detection: 61% Perma Link
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Machine Learning detection for sample
Source: kNp6KbvVoz.exe Joe Sandbox ML: detected
Uses Microsoft's Enhanced Cryptographic Provider
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419030 CryptBinaryToStringA,GetProcessHeap,HeapAlloc,CryptBinaryToStringA, 0_2_00419030
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040C920 memset,lstrlenA,CryptStringToBinaryA,memcpy,lstrcatA,lstrcatA,lstrcatA, 0_2_0040C920
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040A210 CryptStringToBinaryA,LocalAlloc,CryptStringToBinaryA,LocalFree, 0_2_0040A210
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004072A0 GetProcessHeap,HeapAlloc,CryptUnprotectData,WideCharToMultiByte,LocalFree, 0_2_004072A0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040A2B0 CryptUnprotectData,LocalAlloc,memcpy,LocalFree, 0_2_0040A2B0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CA477 CryptStringToBinaryA,LocalAlloc,CryptStringToBinaryA,LocalFree, 0_2_048CA477
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048C7507 GetProcessHeap,RtlAllocateHeap,CryptUnprotectData,WideCharToMultiByte,LocalFree, 0_2_048C7507
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CA517 CryptUnprotectData,LocalAlloc,memcpy,LocalFree, 0_2_048CA517
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D9297 CryptBinaryToStringA,GetProcessHeap,RtlAllocateHeap,CryptBinaryToStringA, 0_2_048D9297
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CCB87 memset,lstrlen,CryptStringToBinaryA,memcpy,lstrcat,lstrcat,lstrcat, 0_2_048CCB87

Compliance
barindex
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Unpacked PE file: 0.2.kNp6KbvVoz.exe.400000.0.unpack
Uses 32bit PE files
Source: kNp6KbvVoz.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior
Source: Binary string: my_library.pdbU source: kNp6KbvVoz.exe, 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, kNp6KbvVoz.exe, 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, kNp6KbvVoz.exe, 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp
Source: Binary string: my_library.pdb source: kNp6KbvVoz.exe, kNp6KbvVoz.exe, 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, kNp6KbvVoz.exe, 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, kNp6KbvVoz.exe, 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004140F0 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,FindNextFileA,FindClose, 0_2_004140F0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040E530 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_0040E530
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040BE40 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,memset,lstrcatA,lstrcatA,lstrcatA,memset,lstrcatA,lstrcatA,lstrcatA,memset,lstrcatA,lstrcatA,lstrcatA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040BE40
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040EE20 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlenA,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_0040EE20
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00414B60 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00414B60
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00413B00 wsprintfA,FindFirstFileA,lstrcatA,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcatA,lstrlenA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_00413B00
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040DF10 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040DF10
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00401710 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00401710
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004147C0 GetProcessHeap,HeapAlloc,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcatA,lstrcatA,lstrlenA,lstrlenA, 0_2_004147C0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040DB80 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040DB80
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040F7B0 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040F7B0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CE797 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_048CE797
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CF087 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlen,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_048CF087
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CC0A7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,memset,lstrcat,lstrcat,lstrcat,memset,lstrcat,lstrcat,lstrcat,memset,lstrcat,lstrcat,lstrcat,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_048CC0A7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CE177 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048CE177
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4357 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,FindNextFileA,FindClose, 0_2_048D4357
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4DC7 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048D4DC7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CDDE7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_048CDDE7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D3D67 wsprintfA,FindFirstFileA,lstrcat,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcat,lstrlen,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_048D3D67
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048C1977 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048C1977
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CFA17 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048CFA17
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4A27 GetProcessHeap,RtlAllocateHeap,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcat,lstrcat,lstrlen,lstrlen, 0_2_048D4A27

Networking
barindex
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: http://194.15.46.65/7e57db3b864b30f1.php
HTTP GET or POST without a user agent
Source: global traffic HTTP traffic detected: GET / HTTP/1.1Host: 194.15.46.65Connection: Keep-AliveCache-Control: no-cache
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 194.15.46.65 194.15.46.65
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: VENUS-INTERNET-ASGB VENUS-INTERNET-ASGB
Source: unknown TCP traffic detected without corresponding DNS query: 194.15.46.65
Source: unknown TCP traffic detected without corresponding DNS query: 194.15.46.65
Source: unknown TCP traffic detected without corresponding DNS query: 194.15.46.65
Source: unknown TCP traffic detected without corresponding DNS query: 194.15.46.65
Source: unknown TCP traffic detected without corresponding DNS query: 194.15.46.65
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00405000 GetProcessHeap,RtlAllocateHeap,InternetOpenA,InternetOpenUrlA,InternetReadFile,KiUserExceptionDispatcher,InternetCloseHandle,InternetCloseHandle, 0_2_00405000
Source: global traffic HTTP traffic detected: GET / HTTP/1.1Host: 194.15.46.65Connection: Keep-AliveCache-Control: no-cache
Source: kNp6KbvVoz.exe, 00000000.00000002.2089693088.0000000002E2E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EF2000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EF2000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/#
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EF2000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/#Q-
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/D
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EF2000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/_Q
Source: kNp6KbvVoz.exe, 00000000.00000002.2089693088.0000000002E2E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65/stemDrive=C:SystemRoot=L
Source: kNp6KbvVoz.exe, 00000000.00000002.2089693088.0000000002E2E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://194.15.46.65b
Source: Amcache.hve.6.dr String found in binary or memory: http://upx.sf.net
Source: kNp6KbvVoz.exe, kNp6KbvVoz.exe, 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, kNp6KbvVoz.exe, 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, kNp6KbvVoz.exe, 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp String found in binary or memory: https://docs.rs/getrandom#nodejs-es-module-support
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00409E30 memset,wsprintfA,OpenDesktopA,CreateDesktopA,memset,lstrcatA,lstrcatA,lstrcatA,memset,lstrcpy,memset,CreateProcessA,Sleep,CloseDesktop, 0_2_00409E30

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 00000000.00000002.2089738538.0000000002E39000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown
Source: 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Detected potential crypto function
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048FF4FF 0_2_048FF4FF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048F159F 0_2_048F159F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0491A5FF 0_2_0491A5FF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_049036EF 0_2_049036EF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0494A76F 0_2_0494A76F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0493A08F 0_2_0493A08F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0492A19F 0_2_0492A19F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048F11DF 0_2_048F11DF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0491B1CF 0_2_0491B1CF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_049082DF 0_2_049082DF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0493134F 0_2_0493134F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04935C00 0_2_04935C00
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0491AD0F 0_2_0491AD0F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0492ED3D 0_2_0492ED3D
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0492FFEF 0_2_0492FFEF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0493C805 0_2_0493C805
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048ED9AB 0_2_048ED9AB
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04939AAF 0_2_04939AAF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0492CA0F 0_2_0492CA0F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04903A0F 0_2_04903A0F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04905B2F 0_2_04905B2F
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04948B64 0_2_04948B64
Found potential string decryption / allocating functions
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: String function: 00404610 appears 317 times
One or more processes crash
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6920 -s 1332
Uses 32bit PE files
Source: kNp6KbvVoz.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: 00000000.00000002.2089738538.0000000002E39000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12
Source: 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: kNp6KbvVoz.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: classification engine Classification label: mal100.troj.evad.winEXE@2/5@0/1
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00418810 CreateToolhelp32Snapshot,Process32First,Process32Next,CloseHandle, 0_2_00418810
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00413970 CoCreateInstance,MultiByteToWideChar,lstrcpyn, 0_2_00413970
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess6920
Source: C:\Windows\SysWOW64\WerFault.exe File created: C:\ProgramData\Microsoft\Windows\WER\Temp\df2b92f1-6bed-49e9-b919-bd1c53e138c2 Jump to behavior
Source: kNp6KbvVoz.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: kNp6KbvVoz.exe ReversingLabs: Detection: 73%
Source: kNp6KbvVoz.exe Virustotal: Detection: 61%
Source: unknown Process created: C:\Users\user\Desktop\kNp6KbvVoz.exe "C:\Users\user\Desktop\kNp6KbvVoz.exe"
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6920 -s 1332
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: msimg32.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: msvcr100.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: wininet.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: rstrtmgr.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{057EEE47-2572-4AA1-88D7-60CE2149E33C}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior
Source: Binary string: my_library.pdbU source: kNp6KbvVoz.exe, 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, kNp6KbvVoz.exe, 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, kNp6KbvVoz.exe, 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp
Source: Binary string: my_library.pdb source: kNp6KbvVoz.exe, kNp6KbvVoz.exe, 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, kNp6KbvVoz.exe, 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, kNp6KbvVoz.exe, 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp

Data Obfuscation
barindex
Detected unpacking (changes PE section rights)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Unpacked PE file: 0.2.kNp6KbvVoz.exe.400000.0.unpack .text:ER;.rdata:R;.data:W;.pewume:W;.rsrc:R; vs .text:EW;.rdata:R;.data:W;.reloc:R;
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Unpacked PE file: 0.2.kNp6KbvVoz.exe.400000.0.unpack
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419F20 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419F20
PE file contains sections with non-standard names
Source: kNp6KbvVoz.exe Static PE information: section name: .pewume
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0042A378 push eax; retf 0_2_0042A39D
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0041B335 push ecx; ret 0_2_0041B348
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048DB59C push ecx; ret 0_2_048DB5AF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_04949280 push ecx; ret 0_2_04949293
Source: kNp6KbvVoz.exe Static PE information: section name: .text entropy: 7.843773564734436
Extensive use of GetProcAddress (often used to hide API calls)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419F20 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419F20
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Found evasive API chain (may stop execution after checking locale)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Evasive API call chain: GetUserDefaultLangID, ExitProcess
Found large amount of non-executed APIs
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API coverage: 9.5 %
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004140F0 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,FindNextFileA,FindClose, 0_2_004140F0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040E530 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_0040E530
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040BE40 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,memset,lstrcatA,lstrcatA,lstrcatA,memset,lstrcatA,lstrcatA,lstrcatA,memset,lstrcatA,lstrcatA,lstrcatA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040BE40
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040EE20 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlenA,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_0040EE20
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00414B60 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00414B60
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00413B00 wsprintfA,FindFirstFileA,lstrcatA,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcatA,lstrlenA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_00413B00
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040DF10 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040DF10
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00401710 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00401710
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004147C0 GetProcessHeap,HeapAlloc,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcatA,lstrcatA,lstrlenA,lstrlenA, 0_2_004147C0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040DB80 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040DB80
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0040F7B0 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040F7B0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CE797 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_048CE797
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CF087 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlen,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_048CF087
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CC0A7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,memset,lstrcat,lstrcat,lstrcat,memset,lstrcat,lstrcat,lstrcat,memset,lstrcat,lstrcat,lstrcat,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_048CC0A7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CE177 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048CE177
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4357 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,FindNextFileA,FindClose, 0_2_048D4357
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4DC7 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048D4DC7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CDDE7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_048CDDE7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D3D67 wsprintfA,FindFirstFileA,lstrcat,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcat,lstrlen,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_048D3D67
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048C1977 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048C1977
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048CFA17 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_048CFA17
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D4A27 GetProcessHeap,RtlAllocateHeap,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcat,lstrcat,lstrlen,lstrlen, 0_2_048D4A27
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00418060 GetSystemInfo,wsprintfA, 0_2_00418060
Source: Amcache.hve.6.dr Binary or memory string: VMware
Source: Amcache.hve.6.dr Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.6.dr Binary or memory string: vmci.syshbin
Source: Amcache.hve.6.dr Binary or memory string: VMware, Inc.
Source: Amcache.hve.6.dr Binary or memory string: VMware20,1hbin@
Source: Amcache.hve.6.dr Binary or memory string: c:\windows\system32\driverstore\filerepository\vmci.inf_amd64_68ed49469341f563
Source: Amcache.hve.6.dr Binary or memory string: Ascsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.6.dr Binary or memory string: .Z$c:/windows/system32/drivers/vmci.sys
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002F01000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Source: Amcache.hve.6.dr Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.6.dr Binary or memory string: pci\ven_15ad&dev_0740&subsys_074015ad,pci\ven_15ad&dev_0740,root\vmwvmcihostdev
Source: Amcache.hve.6.dr Binary or memory string: c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.6.dr Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.6.dr Binary or memory string: vmci.sys
Source: Amcache.hve.6.dr Binary or memory string: VMware-56 4d 43 71 48 15 3d ed-ae e6 c7 5a ec d9 3b f0
Source: Amcache.hve.6.dr Binary or memory string: vmci.syshbin`
Source: Amcache.hve.6.dr Binary or memory string: \driver\vmci,\driver\pci
Source: Amcache.hve.6.dr Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW s
Source: Amcache.hve.6.dr Binary or memory string: VMware20,1
Source: Amcache.hve.6.dr Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.6.dr Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.6.dr Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: VMwareVMware
Source: Amcache.hve.6.dr Binary or memory string: scsi\cdromnecvmwarvmware_sata_cd001.00,scsi\cdromnecvmwarvmware_sata_cd00,scsi\cdromnecvmwar,scsi\necvmwarvmware_sata_cd001,necvmwarvmware_sata_cd001,gencdrom
Source: Amcache.hve.6.dr Binary or memory string: scsi\diskvmware__virtual_disk____2.0_,scsi\diskvmware__virtual_disk____,scsi\diskvmware__,scsi\vmware__virtual_disk____2,vmware__virtual_disk____2,gendisk
Source: Amcache.hve.6.dr Binary or memory string: Microsoft Hyper-V Virtualization Infrastructure Driver
Source: Amcache.hve.6.dr Binary or memory string: VMware PCI VMCI Bus Device
Source: Amcache.hve.6.dr Binary or memory string: VMware VMCI Bus Device
Source: Amcache.hve.6.dr Binary or memory string: VMware Virtual RAM
Source: kNp6KbvVoz.exe, 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: VMwareVMwareR
Source: Amcache.hve.6.dr Binary or memory string: BiosVendor:VMware, Inc.,BiosVersion:VMW201.00V.20829224.B64.2211211842,BiosReleaseDate:11/21/2022,BiosMajorRelease:0xff,BiosMinorRelease:0xff,SystemManufacturer:VMware, Inc.,SystemProduct:VMware20,1,SystemFamily:,SystemSKUNumber:,BaseboardManufacturer:,BaseboardProduct:,BaseboardVersion:,EnclosureType:0x1
Source: Amcache.hve.6.dr Binary or memory string: vmci.inf_amd64_68ed49469341f563
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Process information queried: ProcessInformation Jump to behavior
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0041B058 memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_0041B058
Contains functionality to create guard pages, often used to hinder reverse engineering and debugging
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00404610 VirtualProtect ?,00000004,00000100,00000000 0_2_00404610
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419F20 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419F20
Contains functionality to read the PEB
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419AA0 mov eax, dword ptr fs:[00000030h] 0_2_00419AA0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_02E39F83 push dword ptr fs:[00000030h] 0_2_02E39F83
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048C0D90 mov eax, dword ptr fs:[00000030h] 0_2_048C0D90
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D9D07 mov eax, dword ptr fs:[00000030h] 0_2_048D9D07
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048C092B mov eax, dword ptr fs:[00000030h] 0_2_048C092B
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00405000 GetProcessHeap,RtlAllocateHeap,InternetOpenA,InternetOpenUrlA,InternetReadFile,KiUserExceptionDispatcher,InternetCloseHandle,InternetCloseHandle, 0_2_00405000
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0041B058 memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_0041B058
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0041D21A SetUnhandledExceptionFilter, 0_2_0041D21A
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_0041B63A IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 0_2_0041B63A
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048DD481 SetUnhandledExceptionFilter, 0_2_048DD481
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048DB2BF memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_048DB2BF
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048DB8A1 IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 0_2_048DB8A1
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Memory protected: page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
Yara detected Powershell download and execute
Source: Yara match File source: Process Memory Space: kNp6KbvVoz.exe PID: 6920, type: MEMORYSTR
Searches for specific processes (likely to inject)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004198E0 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,OpenProcess,TerminateProcess,CloseHandle,CloseHandle, 0_2_004198E0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00419790 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,CloseHandle, 0_2_00419790
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D99F7 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,CloseHandle, 0_2_048D99F7
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_048D9B47 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,OpenProcess,TerminateProcess,CloseHandle,CloseHandle, 0_2_048D9B47
Contains functionality to query CPU information (cpuid)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_049069EF cpuid 0_2_049069EF
Contains functionality to query locales information (e.g. system language)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: GetKeyboardLayoutList,LocalAlloc,GetKeyboardLayoutList,GetLocaleInfoA,LocalFree, 0_2_00417D20
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: GetKeyboardLayoutList,LocalAlloc,GetKeyboardLayoutList,GetLocaleInfoA,LocalFree, 0_2_048D7F87
Queries information about the installed CPU (vendor, model number etc)
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Registry key value queried: HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Registry key value queried: HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Jump to behavior
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00418CF0 GetSystemTime, 0_2_00418CF0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_004179E0 GetProcessHeap,HeapAlloc,GetUserNameA, 0_2_004179E0
Source: C:\Users\user\Desktop\kNp6KbvVoz.exe Code function: 0_2_00417BC0 GetProcessHeap,HeapAlloc,GetTimeZoneInformation,wsprintfA, 0_2_00417BC0
AV process strings found (often used to terminate AV products)
Source: Amcache.hve.6.dr Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23080.2006-0\msmpeng.exe
Source: Amcache.hve.6.dr Binary or memory string: msmpeng.exe
Source: Amcache.hve.6.dr Binary or memory string: c:\program files\windows defender\msmpeng.exe
Source: Amcache.hve.6.dr Binary or memory string: MsMpEng.exe

Stealing of Sensitive Information
barindex
Yara detected Stealc
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.kNp6KbvVoz.exe.49a0000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.kNp6KbvVoz.exe.49a0000.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.48c0e67.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.48c0e67.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2088321543.0000000000526000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: kNp6KbvVoz.exe PID: 6920, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Stealc
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.kNp6KbvVoz.exe.49a0000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.kNp6KbvVoz.exe.49a0000.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.48c0e67.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.kNp6KbvVoz.exe.48c0e67.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.2089783465.0000000002EAF000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2088321543.0000000000400000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.1693042238.00000000049A0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2089886567.00000000048C0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2088321543.0000000000526000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: kNp6KbvVoz.exe PID: 6920, type: MEMORYSTR
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1544233 Sample: kNp6KbvVoz.exe Startdate: 29/10/2024 Architecture: WINDOWS Score: 100 17 Multi AV Scanner detection for domain / URL 2->17 19 Found malware configuration 2->19 21 Malicious sample detected (through community Yara rule) 2->21 23 7 other signatures 2->23 6 kNp6KbvVoz.exe 12 2->6         started        process3 dnsIp4 15 194.15.46.65, 49730, 80 VENUS-INTERNET-ASGB unknown 6->15 25 Detected unpacking (changes PE section rights) 6->25 27 Detected unpacking (overwrites its own PE header) 6->27 29 Found evasive API chain (may stop execution after checking locale) 6->29 31 Searches for specific processes (likely to inject) 6->31 10 WerFault.exe 21 16 6->10         started        signatures5 process6 file7 13 C:\ProgramData\Microsoft\...\Report.wer, Unicode 10->13 dropped
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
194.15.46.65
 unknown unknown
20952 VENUS-INTERNET-ASGB true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://194.15.46.65/7e57db3b864b30f1.php true unknown
http://194.15.46.65/ true
    		unknown