darkcomet | ba7dc0c1d2d446886816bfaad5b1fc771f7c05f85d03e01982612f92f5882082

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23-07-2024 05:40

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General

Target

6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Size

284KB
MD5

6657e4e0fcda7c60489761ae4abf0898
SHA1

e2624122b55e5609e2fb01046137b12273b5e871
SHA256

ba7dc0c1d2d446886816bfaad5b1fc771f7c05f85d03e01982612f92f5882082
SHA512

94e52bffdea63578336944a3262e38b5ff32c365d7539a554aa4c1df6690885b7084c5488586469960242a470c1e026889b9fa73c1397035057bda0c89a3b779
SSDEEP

6144:FD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZLz1:Fl8E4w5huat7UovONzbXwnz1

Score

10^/10

darkcomet latentbot windowsupdater persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

WindowsUpdater

darkcomet30.zapto.org:1604

Mutex

DC_MUTEX-2MNJYX6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
MhE6NXDlp1bU
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Extracted

Family

latentbot

darkcomet30.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

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"	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.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-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4616	msdcsc.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4668-0-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/files/0x00080000000234a4-6.dat	upx
behavioral2/memory/4616-15-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4668-16-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-18-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-19-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-20-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-21-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-22-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-23-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-24-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-25-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-26-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-27-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-28-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-29-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-30-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-31-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4616-32-0x0000000000400000-0x00000000004CA000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeSecurityPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeBackupPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeRestorePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeShutdownPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeDebugPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeUndockPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: 33	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: 34	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: 35	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: 36	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4616	msdcsc.exe
Token: SeSecurityPrivilege	4616	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4616	msdcsc.exe
Token: SeLoadDriverPrivilege	4616	msdcsc.exe
Token: SeSystemProfilePrivilege	4616	msdcsc.exe
Token: SeSystemtimePrivilege	4616	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4616	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4616	msdcsc.exe
Token: SeCreatePagefilePrivilege	4616	msdcsc.exe
Token: SeBackupPrivilege	4616	msdcsc.exe
Token: SeRestorePrivilege	4616	msdcsc.exe
Token: SeShutdownPrivilege	4616	msdcsc.exe
Token: SeDebugPrivilege	4616	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4616	msdcsc.exe
Token: SeChangeNotifyPrivilege	4616	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4616	msdcsc.exe
Token: SeUndockPrivilege	4616	msdcsc.exe
Token: SeManageVolumePrivilege	4616	msdcsc.exe
Token: SeImpersonatePrivilege	4616	msdcsc.exe
Token: SeCreateGlobalPrivilege	4616	msdcsc.exe
Token: 33	4616	msdcsc.exe
Token: 34	4616	msdcsc.exe
Token: 35	4616	msdcsc.exe
Token: 36	4616	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4616	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 4616	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe	89
PID 4668 wrote to memory of 4616	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe	89
PID 4668 wrote to memory of 4616	4668	6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6657e4e0fcda7c60489761ae4abf0898_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4616

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
284KB

MD5
6657e4e0fcda7c60489761ae4abf0898

SHA1
e2624122b55e5609e2fb01046137b12273b5e871

SHA256
ba7dc0c1d2d446886816bfaad5b1fc771f7c05f85d03e01982612f92f5882082

SHA512
94e52bffdea63578336944a3262e38b5ff32c365d7539a554aa4c1df6690885b7084c5488586469960242a470c1e026889b9fa73c1397035057bda0c89a3b779

Download Submit
memory/4616-22-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-30-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-21-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-17-0x0000000002190000-0x0000000002191000-memory.dmp

Filesize
4KB

Download
memory/4616-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-32-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-31-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-20-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4616-29-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4668-0-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4668-1-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

Filesize
4KB

Download
memory/4668-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads