darkcomet | 93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

Analysis

max time kernel
244s
max time network
322s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 23:45

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General

Target

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Size

276KB
MD5

42d7cab85b6091321fcb6b263567dfc0
SHA1

ff1bd9453ca46e863ae592121a283a30ff8ab100
SHA256

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c
SHA512

051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656
SSDEEP

6144:5cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PLv:5cWkbgTYWnYnt/IDYhPL

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/5084-132-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/5084-133-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSecurityPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeTakeOwnershipPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeLoadDriverPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemProfilePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemtimePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeProfSingleProcessPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeIncBasePriorityPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeCreatePagefilePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeBackupPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeRestorePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeShutdownPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeDebugPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemEnvironmentPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeChangeNotifyPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeRemoteShutdownPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeUndockPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeManageVolumePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeImpersonatePrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeCreateGlobalPrivilege	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 33	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 34	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 35	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 36	5084	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

C:\Users\Admin\AppData\Local\Temp\93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
"C:\Users\Admin\AppData\Local\Temp\93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:5084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/5084-132-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/5084-133-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download