darkcomet | abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5

General

Target

abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe
Size

616KB
MD5

35a43e1e465358da33d5ffcbf35c209c
SHA1

d8202211ef87fc451f6178f318046d7469b0650d
SHA256

abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5
SHA512

b6b6b603331e0f8ae699afbea865089d61a6ff19699f35fba92c6f4d451ae0dd5261436d6c9f8fff85b9bf58cbeba2148d905499be7285b85014560265caf0b3
SSDEEP

12288:qB5gALGWA5r9YfkxxLSiNp7tYeLoIBSCLsY:ujGNrY0Nbo6S0s

Score

10^/10

darkcomet facebook persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

FACEBOOK

C2

193.107.16.224:5438

Mutex

DC_MUTEX-ERFGKU7

Attributes

gencode
Zva2GGrbyTGh
install
false
offline_keylogger
true
persistence
false

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1240	svchost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1240-58-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-60-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-61-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-64-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-66-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-68-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-69-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/1240-70-0x0000000000400000-0x00000000004B9000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "C:\\Users\\Admin\\AppData\\Roaming\\WinDefender\\windefender.exe"	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28

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

description	pid	Process
Token: SeDebugPrivilege	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe
Token: SeIncreaseQuotaPrivilege	1240	svchost.exe
Token: SeSecurityPrivilege	1240	svchost.exe
Token: SeTakeOwnershipPrivilege	1240	svchost.exe
Token: SeLoadDriverPrivilege	1240	svchost.exe
Token: SeSystemProfilePrivilege	1240	svchost.exe
Token: SeSystemtimePrivilege	1240	svchost.exe
Token: SeProfSingleProcessPrivilege	1240	svchost.exe
Token: SeIncBasePriorityPrivilege	1240	svchost.exe
Token: SeCreatePagefilePrivilege	1240	svchost.exe
Token: SeBackupPrivilege	1240	svchost.exe
Token: SeRestorePrivilege	1240	svchost.exe
Token: SeShutdownPrivilege	1240	svchost.exe
Token: SeDebugPrivilege	1240	svchost.exe
Token: SeSystemEnvironmentPrivilege	1240	svchost.exe
Token: SeChangeNotifyPrivilege	1240	svchost.exe
Token: SeRemoteShutdownPrivilege	1240	svchost.exe
Token: SeUndockPrivilege	1240	svchost.exe
Token: SeManageVolumePrivilege	1240	svchost.exe
Token: SeImpersonatePrivilege	1240	svchost.exe
Token: SeCreateGlobalPrivilege	1240	svchost.exe
Token: 33	1240	svchost.exe
Token: 34	1240	svchost.exe
Token: 35	1240	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1240	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28
PID 2000 wrote to memory of 1240	2000	abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe	28

C:\Users\Admin\AppData\Local\Temp\abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe
"C:\Users\Admin\AppData\Local\Temp\abad4ff3de3310cf9b579d89eac31a7d301031fec7099b0d516e3e0aee951ab5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/1240-61-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-57-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-58-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-60-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-62-0x00000000004B7970-mapping.dmp

Download
memory/1240-64-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-66-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-68-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-69-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/1240-70-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/2000-54-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/2000-55-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2000-67-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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