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Windows
Analysis Report
KyC6hVwU8Z.exe
Overview
General Information
Sample name: | KyC6hVwU8Z.exerenamed because original name is a hash value |
Original sample name: | a8c535490feb18fdff588d94c0d8a889.exe |
Analysis ID: | 1572160 |
MD5: | a8c535490feb18fdff588d94c0d8a889 |
SHA1: | 7e8660d2481014bdf84814273573b921202c67e6 |
SHA256: | 5f4e7c6f450d28136464acb431e1ec1be7812fc72f9eeede3b767f4e0194801b |
Tags: | exeuser-abuse_ch |
Infos: | |
Detection
DCRat
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Antivirus detection for dropped file
Found malware configuration
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected DCRat
.NET source code contains potential unpacker
.NET source code contains very large strings
AI detected suspicious sample
Contains functionality to inject code into remote processes
Drops executables to the windows directory (C:\Windows) and starts them
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if the current process is being debugged
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to communicate with device drivers
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)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a window with clipboard capturing capabilities
Creates files inside the system directory
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Drops PE files to the windows directory (C:\Windows)
Drops files with a non-matching file extension (content does not match file extension)
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
Found inlined nop instructions (likely shell or obfuscated code)
Found potential string decryption / allocating functions
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
One or more processes crash
PE file contains sections with non-standard names
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 a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Classification
- System is w10x64
- KyC6hVwU8Z.exe (PID: 6176 cmdline:
"C:\Users\ user\Deskt op\KyC6hVw U8Z.exe" MD5: A8C535490FEB18FDFF588D94C0D8A889) - conhost.exe (PID: 1532 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - KyC6hVwU8Z.exe (PID: 652 cmdline:
"C:\Users\ user\Deskt op\KyC6hVw U8Z.exe" MD5: A8C535490FEB18FDFF588D94C0D8A889) - KyC6hVwU8Z.exe (PID: 2292 cmdline:
"C:\Users\ user\Deskt op\KyC6hVw U8Z.exe" MD5: A8C535490FEB18FDFF588D94C0D8A889) - 7Up9zvGH4w.exe (PID: 2136 cmdline:
"C:\Users\ user\AppDa ta\Roaming \7Up9zvGH4 w.exe" MD5: F3EDFF85DE5FD002692D54A04BCB1C09) - conhost.exe (PID: 3332 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - pPTyCqA3ru.exe (PID: 2132 cmdline:
"C:\Users\ user\AppDa ta\Roaming \pPTyCqA3r u.exe" MD5: 314420BAC969BCFB9510A0E8CC3686D6) - cmd.exe (PID: 6844 cmdline:
"C:\Window s\System32 \cmd.exe" /C "C:\Use rs\user\Ap pData\Loca l\Temp\pfy xVLTZvp.ba t" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 1100 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - chcp.com (PID: 2568 cmdline:
chcp 65001 MD5: 33395C4732A49065EA72590B14B64F32) - PING.EXE (PID: 4816 cmdline:
ping -n 10 localhost MD5: 2F46799D79D22AC72C241EC0322B011D) - PfjsOcNiQfAmiszo.exe (PID: 6180 cmdline:
"C:\Window s\Prefetch \ReadyBoot \PfjsOcNiQ fAmiszo.ex e" MD5: 314420BAC969BCFB9510A0E8CC3686D6) - WerFault.exe (PID: 2072 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 6 176 -s 268 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
DCRat | DCRat is a typical RAT that has been around since at least June 2019. | No Attribution |
{"C2 url": "http://185.43.5.93/5/4Datalife/asynccpu3Generator/VmPipePollHttpgeoprocessserver", "Params": {"0": "{SYSTEMDRIVE}/Users/", "1": "false", "2": "false", "3": "true", "4": "true", "5": "true", "6": "true", "7": "false", "8": "true", "9": "true", "10": "true", "11": "true", "12": "false", "13": "true", "14": "true"}}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
Click to see the 1 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
Click to see the 3 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security | ||
JoeSecurity_DCRat_1 | Yara detected DCRat | Joe Security |
⊘No Sigma rule has matched
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-10T07:33:14.232792+0100 | 2048095 | 1 | A Network Trojan was detected | 192.168.2.5 | 49867 | 185.43.5.93 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
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Source: | Directory created: | Jump to behavior | ||
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Source: | Binary string: | ||
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Source: | Code function: | 0_2_00200C97 | |
Source: | Code function: | 0_2_00200D48 | |
Source: | Code function: | 5_2_00200C97 | |
Source: | Code function: | 5_2_00200D48 | |
Source: | Code function: | 6_2_0041B6EA |
Source: | File opened: | Jump to behavior | ||
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Source: | Code function: | 12_2_00007FF849104560 | |
Source: | Code function: | 18_2_00007FF848F3C6ED | |
Source: | Code function: | 18_2_00007FF849121CD0 | |
Source: | Code function: | 18_2_00007FF849118FF1 |
Networking |
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Source: | String found in binary or memory: | ||
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Source: | Window created: | Jump to behavior |
System Summary |
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Source: | Long String: |
Source: | Process Stats: |
Source: | Code function: | 10_2_00007FF64C401494 | |
Source: | Code function: | 10_2_00007FF64C401348 |
Source: | Code function: | 10_2_00007FF64C401A44 |
Source: | File created: | Jump to behavior | ||
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Source: | Code function: | 0_2_001E3820 | |
Source: | Code function: | 0_2_001D0350 | |
Source: | Code function: | 0_2_001D3450 | |
Source: | Code function: | 0_2_001F2820 | |
Source: | Code function: | 0_2_001C78ED | |
Source: | Code function: | 0_2_001EB120 | |
Source: | Code function: | 0_2_001E8200 | |
Source: | Code function: | 0_2_001DFAF0 | |
Source: | Code function: | 0_2_001E52E0 | |
Source: | Code function: | 0_2_001E9B80 | |
Source: | Code function: | 0_2_001CF3C0 | |
Source: | Code function: | 0_2_001F83C2 | |
Source: | Code function: | 0_2_00206460 | |
Source: | Code function: | 0_2_001EBD10 | |
Source: | Code function: | 0_2_001D1D4E | |
Source: | Code function: | 0_2_001E55B0 | |
Source: | Code function: | 0_2_001C5E50 | |
Source: | Code function: | 0_2_00204E72 | |
Source: | Code function: | 0_2_001C4E60 | |
Source: | Code function: | 0_2_001DB6D0 | |
Source: | Code function: | 0_2_001E46D0 | |
Source: | Code function: | 0_2_001E7EF0 | |
Source: | Code function: | 0_2_0020A782 | |
Source: | Code function: | 0_2_001E8FD0 | |
Source: | Code function: | 0_2_001D6FC0 | |
Source: | Code function: | 0_2_001DEFF0 | |
Source: | Code function: | 0_2_001F3FE0 | |
Source: | Code function: | 5_2_001E3820 | |
Source: | Code function: | 5_2_001F2820 | |
Source: | Code function: | 5_2_001C78ED | |
Source: | Code function: | 5_2_001EB120 | |
Source: | Code function: | 5_2_001E8200 | |
Source: | Code function: | 5_2_001DFAF0 | |
Source: | Code function: | 5_2_001E52E0 | |
Source: | Code function: | 5_2_001D0350 | |
Source: | Code function: | 5_2_001E9B80 | |
Source: | Code function: | 5_2_001CF3C0 | |
Source: | Code function: | 5_2_001F83C2 | |
Source: | Code function: | 5_2_00206460 | |
Source: | Code function: | 5_2_001D3450 | |
Source: | Code function: | 5_2_001EBD10 | |
Source: | Code function: | 5_2_001D1D4E | |
Source: | Code function: | 5_2_001E55B0 | |
Source: | Code function: | 5_2_001C5E50 | |
Source: | Code function: | 5_2_00204E72 | |
Source: | Code function: | 5_2_001C4E60 | |
Source: | Code function: | 5_2_001DB6D0 | |
Source: | Code function: | 5_2_001E46D0 | |
Source: | Code function: | 5_2_001E7EF0 | |
Source: | Code function: | 5_2_0020A782 | |
Source: | Code function: | 5_2_001E8FD0 | |
Source: | Code function: | 5_2_001D6FC0 | |
Source: | Code function: | 5_2_001DEFF0 | |
Source: | Code function: | 5_2_001F3FE0 | |
Source: | Code function: | 6_2_00402320 | |
Source: | Code function: | 6_2_0040CF8F | |
Source: | Code function: | 6_2_004050C0 | |
Source: | Code function: | 6_2_00420470 | |
Source: | Code function: | 6_2_0040FCF0 | |
Source: | Code function: | 6_2_00419D19 | |
Source: | Code function: | 6_2_0041951B | |
Source: | Code function: | 6_2_00415635 | |
Source: | Code function: | 6_2_0041DEC3 | |
Source: | Code function: | 6_2_00404F00 | |
Source: | Code function: | 10_2_00007FF64C401754 | |
Source: | Code function: | 12_2_00007FF848F21EC3 | |
Source: | Code function: | 12_2_00007FF848F31D55 | |
Source: | Code function: | 12_2_00007FF848F908E1 | |
Source: | Code function: | 18_2_00007FF848F31EC3 | |
Source: | Code function: | 18_2_00007FF848F41D55 | |
Source: | Code function: | 18_2_00007FF84911FC4A | |
Source: | Code function: | 18_2_00007FF84912338D | |
Source: | Code function: | 18_2_00007FF8491210A2 | |
Source: | Code function: | 18_2_00007FF84911F4CD |
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