darkcomet | c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/03/2024, 01:43

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe
Size 3.9MB
Sample240302-b5n8csgg87
SHA256 c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c
MD5 f97c46e379d34e339d17e9a3ef8bafcc
SHA1 f22bb5496c1e72370b5b946fcb0a58907e524ceb
SHA512 31a69353fa9b0505552b0ee9595fc3ede4b37c0659df3091d7a4053c5d0c65a44472a32ecd471c7cad78dabf9a1ea43be4a9890f1790c9d4cc803c8c6b5e3d70
SSDEEP 98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CV:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBV
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

UPX dump on OEP (original entry point) 23 IoCs

resource	yara_rule
behavioral2/memory/4408-0-0x0000000000400000-0x00000000007EC000-memory.dmp	UPX
behavioral2/files/0x001000000002314e-16.dat	UPX
behavioral2/memory/4408-29-0x0000000000400000-0x00000000007EC000-memory.dmp	UPX
behavioral2/memory/2668-31-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-34-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/3180-35-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/2668-41-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-38-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/3180-40-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/3180-43-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/2668-44-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/4872-46-0x0000000000400000-0x00000000007EC000-memory.dmp	UPX
behavioral2/memory/2668-47-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-50-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-51-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-52-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/3180-53-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/2668-56-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-60-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-64-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-68-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-72-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX
behavioral2/memory/2668-78-0x0000000000400000-0x00000000004B5000-memory.dmp	UPX

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe

Executes dropped EXE 3 IoCs

pid	Process
4872	Soundcrd.exe
2668	Soundcrd.exe
3180	Soundcrd.exe

UPX packed file 23 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4408-0-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/files/0x001000000002314e-16.dat	upx
behavioral2/memory/4408-29-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/memory/2668-31-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3180-35-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2668-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3180-40-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/3180-43-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2668-44-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4872-46-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/memory/2668-47-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3180-53-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2668-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2668-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4872 set thread context of 2668	4872	Soundcrd.exe	96
PID 4872 set thread context of 3180	4872	Soundcrd.exe	97

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Soundcrd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2668	Soundcrd.exe
Token: SeSecurityPrivilege	2668	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2668	Soundcrd.exe
Token: SeLoadDriverPrivilege	2668	Soundcrd.exe
Token: SeSystemProfilePrivilege	2668	Soundcrd.exe
Token: SeSystemtimePrivilege	2668	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2668	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2668	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2668	Soundcrd.exe
Token: SeBackupPrivilege	2668	Soundcrd.exe
Token: SeRestorePrivilege	2668	Soundcrd.exe
Token: SeShutdownPrivilege	2668	Soundcrd.exe
Token: SeDebugPrivilege	2668	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2668	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2668	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2668	Soundcrd.exe
Token: SeUndockPrivilege	2668	Soundcrd.exe
Token: SeManageVolumePrivilege	2668	Soundcrd.exe
Token: SeImpersonatePrivilege	2668	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2668	Soundcrd.exe
Token: 33	2668	Soundcrd.exe
Token: 34	2668	Soundcrd.exe
Token: 35	2668	Soundcrd.exe
Token: 36	2668	Soundcrd.exe
Token: SeDebugPrivilege	3180	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe
4872	Soundcrd.exe
3180	Soundcrd.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 1092	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	91
PID 4408 wrote to memory of 1092	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	91
PID 4408 wrote to memory of 1092	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	91
PID 1092 wrote to memory of 3640	1092	cmd.exe	94
PID 1092 wrote to memory of 3640	1092	cmd.exe	94
PID 1092 wrote to memory of 3640	1092	cmd.exe	94
PID 4408 wrote to memory of 4872	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	95
PID 4408 wrote to memory of 4872	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	95
PID 4408 wrote to memory of 4872	4408	c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe	95
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 2668	4872	Soundcrd.exe	96
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97
PID 4872 wrote to memory of 3180	4872	Soundcrd.exe	97

C:\Users\Admin\AppData\Local\Temp\c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe
"C:\Users\Admin\AppData\Local\Temp\c86bc150c75b6cf450e4d2de877b2dfb7bf1198be8c37bf0651f5b1ed974c36c.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rMHGB.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1092
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoftt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Soundcrd.exe" /f
    3⤵
    - Adds Run key to start application
    PID:3640
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4872
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2668
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

rMHGB.txt

Path C:\Users\Admin\AppData\Local\Temp\rMHGB.txt
Size 139B
SHA256 10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d
MD5 173bcce4810d4901872d0ef4f0bfea4e
SHA1 561b03fdfe68b6419fddf57f32e1aab9a6126a2f
SHA512 2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e
MD5 SHA1 SHA512

Submit Download

Soundcrd.txt

Path C:\Users\Admin\AppData\Roaming\Soundcrd.txt
Size 3.9MB
SHA256 56e8600d1747034f75d7e70168e2c204c3fd543e08c604be33224427d9e08083
MD5 8e1d99b74218cbb01be0732ac997798c
SHA1 225f9268e7e6fe95ecf900920b90c6b17a90f5df
SHA512 9cdff1648fcb58ca4b1748b830a999311e83311133c6a0d349c92cee357a91a194a9e05aa6a816046fa3ee66b85f2929a0239fec7a0e7ba908f42978057195d3
SSDEEP 98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cx:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBx
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2668-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-49-0x00000000005B0000-0x00000000005B1000-memory.dmp

Download

memory/2668-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/2668-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Download

memory/3180-53-0x0000000000400000-0x0000000000409000-memory.dmp

Download

memory/3180-43-0x0000000000400000-0x0000000000409000-memory.dmp

Download

memory/3180-40-0x0000000000400000-0x0000000000409000-memory.dmp

Download

memory/3180-35-0x0000000000400000-0x0000000000409000-memory.dmp

Download

memory/4408-0-0x0000000000400000-0x00000000007EC000-memory.dmp

Download

memory/4408-29-0x0000000000400000-0x00000000007EC000-memory.dmp

Download

memory/4872-46-0x0000000000400000-0x00000000007EC000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads