darkcomet | 83075480006df97f7a9c7ca0dfb8cba79512b1c79e85028fb3ce587688a81667

General

Target

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Size

271KB
MD5

1e902c033e573c6473ba566b31ec3248
SHA1

3e4f67d3c8913a623285f9ee1578b9cb99e3dea1
SHA256

83075480006df97f7a9c7ca0dfb8cba79512b1c79e85028fb3ce587688a81667
SHA512

4d077616196f8e2934b7eb7f5f9887eba0e7c6f3b634e9ee916110fec196223f3740238ead2991836d9698496fecb56a9a5e5a9b80d8a61ee10dd59aeb5fbca9
SSDEEP

6144:r895+h89b3gYspZ5xm+hN6ws6NV6z0fJwTZv0toNOp1eEokDk8y8OzVbX5n:rm5+h89b3gYm4IN6ws6DW9voakD5e

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

medoo.no-ip.org:1604

Mutex

DC_MUTEX-VE1B6UA

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
pzaEzPaCvyKl
install
true
offline_keylogger
true
persistence
true
reg_key
��

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:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	1e902c033e573c6473ba566b31ec3248_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:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

4404 notepad.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2384 msdcsc.exe

pid	process
4404	notepad.exe

pid	process
2384	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ãíßÑæÈÏÇÊí = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ãíßÑæÈÏÇÊí = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ãíßÑæÈÏÇÊí = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 2384 set thread context of 2600 2384 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2384 set thread context of 2600	2384	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeSecurityPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeBackupPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeRestorePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeShutdownPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeDebugPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeUndockPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: 33	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: 34	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: 35	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: 36	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2384	msdcsc.exe
Token: SeSecurityPrivilege	2384	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2384	msdcsc.exe
Token: SeLoadDriverPrivilege	2384	msdcsc.exe
Token: SeSystemProfilePrivilege	2384	msdcsc.exe
Token: SeSystemtimePrivilege	2384	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2384	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2384	msdcsc.exe
Token: SeCreatePagefilePrivilege	2384	msdcsc.exe
Token: SeBackupPrivilege	2384	msdcsc.exe
Token: SeRestorePrivilege	2384	msdcsc.exe
Token: SeShutdownPrivilege	2384	msdcsc.exe
Token: SeDebugPrivilege	2384	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2384	msdcsc.exe
Token: SeChangeNotifyPrivilege	2384	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2384	msdcsc.exe
Token: SeUndockPrivilege	2384	msdcsc.exe
Token: SeManageVolumePrivilege	2384	msdcsc.exe
Token: SeImpersonatePrivilege	2384	msdcsc.exe
Token: SeCreateGlobalPrivilege	2384	msdcsc.exe
Token: 33	2384	msdcsc.exe
Token: 34	2384	msdcsc.exe
Token: 35	2384	msdcsc.exe
Token: 36	2384	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2600	iexplore.exe
Token: SeSecurityPrivilege	2600	iexplore.exe
Token: SeTakeOwnershipPrivilege	2600	iexplore.exe
Token: SeLoadDriverPrivilege	2600	iexplore.exe
Token: SeSystemProfilePrivilege	2600	iexplore.exe
Token: SeSystemtimePrivilege	2600	iexplore.exe
Token: SeProfSingleProcessPrivilege	2600	iexplore.exe
Token: SeIncBasePriorityPrivilege	2600	iexplore.exe
Token: SeCreatePagefilePrivilege	2600	iexplore.exe
Token: SeBackupPrivilege	2600	iexplore.exe
Token: SeRestorePrivilege	2600	iexplore.exe
Token: SeShutdownPrivilege	2600	iexplore.exe
Token: SeDebugPrivilege	2600	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2600	iexplore.exe
Token: SeChangeNotifyPrivilege	2600	iexplore.exe
Token: SeRemoteShutdownPrivilege	2600	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

2600 iexplore.exe

pid	process
2600	iexplore.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 4404	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	notepad.exe
PID 4128 wrote to memory of 2384	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	msdcsc.exe
PID 4128 wrote to memory of 2384	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	msdcsc.exe
PID 4128 wrote to memory of 2384	4128	1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe	msdcsc.exe
PID 2384 wrote to memory of 2600	2384	msdcsc.exe	iexplore.exe
PID 2384 wrote to memory of 2600	2384	msdcsc.exe	iexplore.exe
PID 2384 wrote to memory of 2600	2384	msdcsc.exe	iexplore.exe
PID 2384 wrote to memory of 2600	2384	msdcsc.exe	iexplore.exe
PID 2384 wrote to memory of 2600	2384	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1e902c033e573c6473ba566b31ec3248_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:4404

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2600

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 --field-trial-handle=4160,i,11069752405888604640,8928124405695604965,262144 --variations-seed-version --mojo-platform-channel-handle=4272 /prefetch:8
1⤵
PID:2464

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

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
271KB

MD5
1e902c033e573c6473ba566b31ec3248

SHA1
3e4f67d3c8913a623285f9ee1578b9cb99e3dea1

SHA256
83075480006df97f7a9c7ca0dfb8cba79512b1c79e85028fb3ce587688a81667

SHA512
4d077616196f8e2934b7eb7f5f9887eba0e7c6f3b634e9ee916110fec196223f3740238ead2991836d9698496fecb56a9a5e5a9b80d8a61ee10dd59aeb5fbca9

Download Submit
memory/2384-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-64-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2384-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4128-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4128-1-0x0000000002430000-0x0000000002431000-memory.dmp

Filesize
4KB

Download
memory/4128-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4404-4-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads