darkcomet | 9e24637f1e1139f5ced94840f5e061e9942381d5fdbf746d87fcc6a260393939

General

Target

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Size

660KB
MD5

124e7aa73dc65c630469d046b911c8f0
SHA1

cf446ce0bdecc6babb7a38d3ab8746085dc7afff
SHA256

9e24637f1e1139f5ced94840f5e061e9942381d5fdbf746d87fcc6a260393939
SHA512

e32ebd987cb2da4edff225e4347f7c7395d0bc2e27fcad6cd989b4855c06065364afedcd981f5a7190893ecdc205ad84bffe74dbdab387ef999c509ff5b83ec7
SSDEEP

12288:4X2JVHMRtDaSm3TJvVNvWV5YTsY7tHwbz/htfcoCoK632zb7G/Q0Q:uss2Sm39NNv9wY7tHwbzfIoK6Moo

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:53

127.0.0.1:5353

Mutex

DC_MUTEX-0U5TJW3

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
KjzeXH1tYYSC
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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

T1547.004

Modify Registry

T1112

Processes:

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.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"	124e7aa73dc65c630469d046b911c8f0_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

Processes:

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

5060 msdcsc.exe

pid	process
5060	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.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

Processes:

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeSecurityPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeBackupPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeRestorePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeShutdownPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeDebugPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeUndockPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: 33	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: 34	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: 35	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: 36	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	5060	msdcsc.exe
Token: SeSecurityPrivilege	5060	msdcsc.exe
Token: SeTakeOwnershipPrivilege	5060	msdcsc.exe
Token: SeLoadDriverPrivilege	5060	msdcsc.exe
Token: SeSystemProfilePrivilege	5060	msdcsc.exe
Token: SeSystemtimePrivilege	5060	msdcsc.exe
Token: SeProfSingleProcessPrivilege	5060	msdcsc.exe
Token: SeIncBasePriorityPrivilege	5060	msdcsc.exe
Token: SeCreatePagefilePrivilege	5060	msdcsc.exe
Token: SeBackupPrivilege	5060	msdcsc.exe
Token: SeRestorePrivilege	5060	msdcsc.exe
Token: SeShutdownPrivilege	5060	msdcsc.exe
Token: SeDebugPrivilege	5060	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	5060	msdcsc.exe
Token: SeChangeNotifyPrivilege	5060	msdcsc.exe
Token: SeRemoteShutdownPrivilege	5060	msdcsc.exe
Token: SeUndockPrivilege	5060	msdcsc.exe
Token: SeManageVolumePrivilege	5060	msdcsc.exe
Token: SeImpersonatePrivilege	5060	msdcsc.exe
Token: SeCreateGlobalPrivilege	5060	msdcsc.exe
Token: 33	5060	msdcsc.exe
Token: 34	5060	msdcsc.exe
Token: 35	5060	msdcsc.exe
Token: 36	5060	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

5060 msdcsc.exe

pid	process
5060	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe

description	pid	process	target process
PID 4764 wrote to memory of 5060	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe	msdcsc.exe
PID 4764 wrote to memory of 5060	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe	msdcsc.exe
PID 4764 wrote to memory of 5060	4764	124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\124e7aa73dc65c630469d046b911c8f0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\124e7aa73dc65c630469d046b911c8f0_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:4764

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5060

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2384 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:1272

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
660KB

MD5
124e7aa73dc65c630469d046b911c8f0

SHA1
cf446ce0bdecc6babb7a38d3ab8746085dc7afff

SHA256
9e24637f1e1139f5ced94840f5e061e9942381d5fdbf746d87fcc6a260393939

SHA512
e32ebd987cb2da4edff225e4347f7c7395d0bc2e27fcad6cd989b4855c06065364afedcd981f5a7190893ecdc205ad84bffe74dbdab387ef999c509ff5b83ec7

Download Submit
memory/4764-0-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4764-3-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-18-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/5060-16-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-14-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/5060-19-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-20-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-21-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-22-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-24-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5060-26-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads