Windows Analysis Report
file.exe

Overview

General Information

Sample name: file.exe
Analysis ID: 1504333
MD5: f10161c3acde4b7dadcd1eeddcf937f1
SHA1: ebf47c2e0916fbc430ddc8a90cdd1fe98112f979
SHA256: 445a933766bf381ebe8530e0795e22ab2bccace28291388aba99808e101e8230
Tags: exe
Infos:

Detection

PureLog Stealer, RedLine, zgRAT
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected zgRAT
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Injects a PE file into a foreign processes
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Enables debug privileges
Enables security privileges
Installs a raw input device (often for capturing keystrokes)
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
RedLine Stealer RedLine Stealer is a malware available on underground forums for sale apparently as a standalone ($100/$150 depending on the version) or also on a subscription basis ($100/month). This malware harvests information from browsers such as saved credentials, autocomplete data, and credit card information. A system inventory is also taken when running on a target machine, to include details such as the username, location data, hardware configuration, and information regarding installed security software. More recent versions of RedLine added the ability to steal cryptocurrency. FTP and IM clients are also apparently targeted by this family, and this malware has the ability to upload and download files, execute commands, and periodically send back information about the infected computer. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.redline_stealer
Name Description Attribution Blogpost URLs Link
zgRAT zgRAT is a Remote Access Trojan malware which sometimes drops other malware such as AgentTesla malware. zgRAT has an inforstealer use which targets browser information and cryptowallets.Usually spreads by USB or phishing emails with -zip/-lnk/.bat/.xlsx attachments and so on. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.zgrat

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: file.exe ReversingLabs: Detection: 34%
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Uses 32bit PE files
Source: file.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: file.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: RegAsm.exe, 00000004.00000002.2168998227.00000000031DC000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: IndexedDB\https_www.youtube.com_0.indexeddb.leveldb equals www.youtube.com (Youtube)
Source: RegAsm.exe, 00000004.00000002.2168998227.00000000031DC000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: IndexedDB\https_www.youtube.com_0.indexeddb.leveldb@\ equals www.youtube.com (Youtube)
Source: RegAsm.exe, 00000004.00000002.2168998227.00000000031DC000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: q#www.youtube.com_0.indexeddb.leveldb equals www.youtube.com (Youtube)
Source: RegAsm.exe, 00000004.00000002.2168998227.00000000031DC000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: q3IndexedDB\https_www.youtube.com_0.indexeddb.leveldb@\ equals www.youtube.com (Youtube)
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003175000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://api.ip.s
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003175000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://api.ip.sb/ip
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://discord.com/api/v9/users/
Installs a raw input device (often for capturing keystrokes)
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003388000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: GetRawInputData memstr_2d6d67b3-8

System Summary
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Malicious sample detected (through community Yara rule)
Source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects zgRAT Author: ditekSHen
Source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE Matched rule: Detects zgRAT Author: ditekSHen
Source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Detects zgRAT Author: ditekSHen
.NET source code contains very large array initializations
Source: file.exe, MoveAngles.cs Large array initialization: MoveAngles: array initializer size 504320
Detected potential crypto function
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 4_2_014C745A 4_2_014C745A
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 4_2_014C7468 4_2_014C7468
Enables security privileges
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process token adjusted: Security Jump to behavior
Sample file is different than original file name gathered from version info
Source: file.exe, 00000000.00000002.2151319090.00000000013DE000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenameclr.dllT vs file.exe
Source: file.exe, 00000000.00000002.2153470757.0000000004245000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameCopita.exe" vs file.exe
Source: file.exe, 00000000.00000000.2147605021.0000000000EC0000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenamesecinitj% vs file.exe
Source: file.exe Binary or memory string: OriginalFilenamesecinitj% vs file.exe
Uses 32bit PE files
Source: file.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: file.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: 0.2.file.exe.4245570.0.raw.unpack, Strings.cs Cryptographic APIs: 'CreateDecryptor'
Source: 0.2.file.exe.4245570.0.raw.unpack, TripleDes.cs Cryptographic APIs: 'CreateDecryptor'
Source: 0.2.file.exe.4245570.0.raw.unpack, A2H1lUZ15GsIooGy4G.cs Cryptographic APIs: 'CreateDecryptor'
Source: 0.2.file.exe.4245570.0.raw.unpack, A2H1lUZ15GsIooGy4G.cs Cryptographic APIs: 'CreateDecryptor'
Source: classification engine Classification label: mal100.troj.evad.winEXE@7/2@0/0
Source: C:\Users\user\Desktop\file.exe File created: C:\Users\user\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\file.exe.log Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Mutant created: NULL
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:1008:120:WilError_03
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3604:120:WilError_03
Source: file.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: file.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.83%
Source: C:\Users\user\Desktop\file.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: file.exe ReversingLabs: Detection: 34%
Source: unknown Process created: C:\Users\user\Desktop\file.exe "C:\Users\user\Desktop\file.exe"
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\file.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: aclayers.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mpr.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sfc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sfc_os.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: dwrite.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: textshaping.dll Jump to behavior
Source: file.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: file.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: file.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Data Obfuscation
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.NET source code contains method to dynamically call methods (often used by packers)
Source: 0.2.file.exe.4245570.0.raw.unpack, A2H1lUZ15GsIooGy4G.cs .Net Code: typeof(Marshal).GetMethod("GetDelegateForFunctionPointer", new Type[2]{typeof(IntPtr),typeof(Type)})
Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 4_2_014CE390 push eax; ret 4_2_014CE391
Source: file.exe Static PE information: section name: .text entropy: 7.998016375889197
Source: 0.2.file.exe.4245570.0.raw.unpack, Form1.cs High entropy of concatenated method names: '_003CReadLine_003Eb__2_0', 'u6YPlGEI8QVmr8I8RpM', 'Wvju4xEDuYOca4808Qu', 'T7d5G9E2aug3mHaOPxY', 'Form1_Load', 'ReadLine', 'Dispose', 'InitializeComponent', 'YtIaI8j3rSiRyGAl2JW', 'N5mOPLjYAuiZjHAvqIA'
Source: 0.2.file.exe.4245570.0.raw.unpack, FieldRoot20.cs High entropy of concatenated method names: 'Field1', 'Field5', 'Field2', 'Field3', 'Field4', 'Key4Database', 'Key3Database', 'aGErA5sQtlXYtkc27h2', 'cIYEf8sLrL3CSuxF0Lm', 'oJJkSAsqX9jsWvIh64r'
Source: 0.2.file.exe.4245570.0.raw.unpack, SystemInfoHelper.cs High entropy of concatenated method names: '_003CCloseBrowser_003Eb__1', 'rpm1MhNS33bBfOCj94m', 'zygwd6NQQdNu9pEPE3K', 'ShowMessage', 'CloseBrowser', 'Add', 'GetProcessors', 'GetGraphicCards', 'GetBrowsers', 'GetSerialNumber'
Source: 0.2.file.exe.4245570.0.raw.unpack, IPv4Helper.cs High entropy of concatenated method names: '_003CGetDefaultIPv4Address_003Eb__1_0', '_003CGetDefaultIPv4Address_003Eb__1_1', 'sgfAjAEx0k9JoJfOBfT', 'oyrplTEnPeopkIp2NiN', 'C5MLWAEiqwHRZWOnJ4O', 'rnZAVrEtS20OgKUWM6v', 'Vhrg5vEzFa2NnOewMim', 'gYSU1JN9DcPZRYRkGeG', 'dTpFQlN56548JKyxPdP', 'IsLocalIp'
Source: 0.2.file.exe.4245570.0.raw.unpack, FieldRoot19.cs High entropy of concatenated method names: 'Field1', 'Field2', 'Field3', 'QjCcD1Zn4tcfsZA9sIa', 'OhbwbhZi0NFOPuNkb38', 'a1EK4mZt4GAltSMBmyJ', 'BIl3VvZzcrbGuVWGMlc', 'Eklam2s9hBVdbjZgWBe', 'D84VyLZJsBycBUGd6e9', 'w0w9LXZxRRyNDew5Euq'
Source: 0.2.file.exe.4245570.0.raw.unpack, CryptoHelper.cs High entropy of concatenated method names: 'GetDecoded', 'DecryptBlob', 'cryptUnprotectData', 'GetMd5Hash', 'GetHexString', 'hLQIITji4QpCkh9wjkg', 'wdjLWYjtOQnfZ401LjT', 'EtO0u7jx2SiMcqvvLE4', 'p6thTQjn3OEOCvQTBp0', 'GEAFaojzqOQRdZvRHAf'
Source: 0.2.file.exe.4245570.0.raw.unpack, BerkeleyDB.cs High entropy of concatenated method names: 'Extract', 'J1WSUBjDJSFisHixHI4', 'n0c3pAj2Rif647RIqXE', 'Sbl46hjKU2auxmj19VJ', 'VcI3PRjfLlC21DCR0ND', 'N9WNDCjgExGI7YSuU2Y', 'Fvt0YIjIqtoE0sLpZBG', 'NQ3M7jjPh1Z8gNyFIOT'
Source: 0.2.file.exe.4245570.0.raw.unpack, TripleDes.cs High entropy of concatenated method names: 'ComputeVoid', 'Compute', 'DecryptStringDesCbc', 'DecryptByteDesCbc', 'MmcFqZRL0qST7eLXOlf', 'eSgwX8Rl91afUQv4O9G', 'ge8AaBR8JGoTTKek3MA', 'qbE6jpRaW5pXB5Uqhrd', 'gul6CnRVV47QPE300pE', 'AEaPMTRpnoUEGMV5my8'
Source: 0.2.file.exe.4245570.0.raw.unpack, A2H1lUZ15GsIooGy4G.cs High entropy of concatenated method names: 'NA10JdHu1v0HlJWFF9p', 'TR4sHkH1BFUKOVlIA2P', 'LtQPyoxJn7', 'P8Gh1PHTowh3fy8qlLk', 'g38PJ8K3c0', 'AZCPHbxqQi', 'kjCPpoa2Hi', 'zssPO0JXVk', 'wmTPVkxu9Y', 'fZOeODHb8Jam9ngiXRS'
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
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Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \QEMU-GA.EXE`,
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \QEMU-GA.EXE
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \QEMU-GA.EXE@\
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\file.exe Memory allocated: 15F0000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory allocated: 3240000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory allocated: 3050000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 14C0000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 3110000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 5110000 memory reserve | memory write watch Jump to behavior
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\file.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Thread delayed: delay time: 922337203685477 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\file.exe TID: 2056 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 6432 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Users\user\Desktop\file.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \qemu-ga.exe
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \qemu-ga.exe`,
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003242000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: \qemu-ga.exe@\
Enables debug privileges
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
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Allocates memory in foreign processes
Source: C:\Users\user\Desktop\file.exe Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 protect: page execute and read and write Jump to behavior
Contains functionality to inject code into remote processes
Source: C:\Users\user\Desktop\file.exe Code function: 0_2_03242139 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,CreateProcessA,CreateProcessA,VirtualAlloc,VirtualAlloc,GetThreadContext,Wow64GetThreadContext,ReadProcessMemory,ReadProcessMemory,VirtualAllocEx,VirtualAllocEx,GetProcAddress,TerminateProcess,WriteProcessMemory,WriteProcessMemory,WriteProcessMemory,WriteProcessMemory,WriteProcessMemory,WriteProcessMemory,SetThreadContext,Wow64SetThreadContext,ResumeThread,ResumeThread, 0_2_03242139
Injects a PE file into a foreign processes
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 value starts with: 4D5A Jump to behavior
Writes to foreign memory regions
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 402000 Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 456000 Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 47E000 Jump to behavior
Source: C:\Users\user\Desktop\file.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 11CD008 Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" Jump to behavior
Source: C:\Users\user\Desktop\file.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" Jump to behavior
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003388000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: GetProgmanWindow
Source: RegAsm.exe, 00000004.00000002.2168998227.0000000003388000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: SetProgmanWindow
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\file.exe Queries volume information: C:\Users\user\Desktop\file.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Fonts\micross.ttf VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior
AV process strings found (often used to terminate AV products)
Source: file.exe, 00000000.00000002.2151319090.000000000141D000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: avp.exe
Source: file.exe, 00000000.00000002.2151319090.000000000141D000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: AVP.exe

Stealing of Sensitive Information
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Yara detected PureLog Stealer
Source: Yara match File source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000004.00000002.2159148981.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2153470757.0000000004245000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Yara detected RedLine Stealer
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6880, type: MEMORYSTR
Yara detected zgRAT
Source: Yara match File source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE

Remote Access Functionality
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Yara detected PureLog Stealer
Source: Yara match File source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000004.00000002.2159148981.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2153470757.0000000004245000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Yara detected RedLine Stealer
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 6880, type: MEMORYSTR
Yara detected zgRAT
Source: Yara match File source: 0.2.file.exe.4245570.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.file.exe.4245570.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
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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: 1504333 Sample: file.exe Startdate: 04/09/2024 Architecture: WINDOWS Score: 100 22 Malicious sample detected (through community Yara rule) 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected PureLog Stealer 2->26 28 5 other signatures 2->28 7 file.exe 2 2->7         started        process3 file4 20 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 7->20 dropped 30 Contains functionality to inject code into remote processes 7->30 32 Writes to foreign memory regions 7->32 34 Allocates memory in foreign processes 7->34 36 Injects a PE file into a foreign processes 7->36 11 RegAsm.exe 4 7->11         started        14 conhost.exe 7->14         started        16 RegAsm.exe 7->16         started        signatures5 process6 signatures7 38 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->38 18 conhost.exe 11->18         started        process8
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