darkcomet | 43ed2b2e7cea9419473cdb249f29f9d5d340c955046e9ccfd4506a9ea9bcb60c

General

Target

ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
Size

423KB
MD5

ece22edeb630f6ea780e2ddc01fa0005
SHA1

1804adb8a736799c0d8c3b9556335b19c7d83ebb
SHA256

43ed2b2e7cea9419473cdb249f29f9d5d340c955046e9ccfd4506a9ea9bcb60c
SHA512

0c0291723dfdd0645c3a0d8ebb95cb4b3b71468e258d3ff95e4864db1afba8f8db99ff11e2a08e3e97b597ce51dd004132df6f44bbcefd2b89be1a2dfd6d1a3f
SSDEEP

12288:ClghoSqaNJ/Jj0rvipd0ysnewRU16PUAQ9muZ:Qg2aNb0rqkyWO1mU58A

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kurd97.no-ip.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
1U7AdLWZPz0J
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:

Stage1.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"	Stage1.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exeStage1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	Stage1.exe

Executes dropped EXE 3 IoCs

Processes:

Stage2.exeStage1.exemsdcsc.exe

pid process

1560 Stage2.exe
1628 Stage1.exe
1736 msdcsc.exe

pid	process
1560	Stage2.exe
1628	Stage1.exe
1736	msdcsc.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3032-0-0x0000000000400000-0x0000000000424000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\Stage2.exe	upx
behavioral2/memory/1560-12-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral2/memory/1560-16-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral2/memory/3032-34-0x0000000000400000-0x0000000000424000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Stage1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Stage1.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:

Stage1.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1628	Stage1.exe
Token: SeSecurityPrivilege	1628	Stage1.exe
Token: SeTakeOwnershipPrivilege	1628	Stage1.exe
Token: SeLoadDriverPrivilege	1628	Stage1.exe
Token: SeSystemProfilePrivilege	1628	Stage1.exe
Token: SeSystemtimePrivilege	1628	Stage1.exe
Token: SeProfSingleProcessPrivilege	1628	Stage1.exe
Token: SeIncBasePriorityPrivilege	1628	Stage1.exe
Token: SeCreatePagefilePrivilege	1628	Stage1.exe
Token: SeBackupPrivilege	1628	Stage1.exe
Token: SeRestorePrivilege	1628	Stage1.exe
Token: SeShutdownPrivilege	1628	Stage1.exe
Token: SeDebugPrivilege	1628	Stage1.exe
Token: SeSystemEnvironmentPrivilege	1628	Stage1.exe
Token: SeChangeNotifyPrivilege	1628	Stage1.exe
Token: SeRemoteShutdownPrivilege	1628	Stage1.exe
Token: SeUndockPrivilege	1628	Stage1.exe
Token: SeManageVolumePrivilege	1628	Stage1.exe
Token: SeImpersonatePrivilege	1628	Stage1.exe
Token: SeCreateGlobalPrivilege	1628	Stage1.exe
Token: 33	1628	Stage1.exe
Token: 34	1628	Stage1.exe
Token: 35	1628	Stage1.exe
Token: 36	1628	Stage1.exe
Token: SeIncreaseQuotaPrivilege	1736	msdcsc.exe
Token: SeSecurityPrivilege	1736	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1736	msdcsc.exe
Token: SeLoadDriverPrivilege	1736	msdcsc.exe
Token: SeSystemProfilePrivilege	1736	msdcsc.exe
Token: SeSystemtimePrivilege	1736	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1736	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1736	msdcsc.exe
Token: SeCreatePagefilePrivilege	1736	msdcsc.exe
Token: SeBackupPrivilege	1736	msdcsc.exe
Token: SeRestorePrivilege	1736	msdcsc.exe
Token: SeShutdownPrivilege	1736	msdcsc.exe
Token: SeDebugPrivilege	1736	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1736	msdcsc.exe
Token: SeChangeNotifyPrivilege	1736	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1736	msdcsc.exe
Token: SeUndockPrivilege	1736	msdcsc.exe
Token: SeManageVolumePrivilege	1736	msdcsc.exe
Token: SeImpersonatePrivilege	1736	msdcsc.exe
Token: SeCreateGlobalPrivilege	1736	msdcsc.exe
Token: 33	1736	msdcsc.exe
Token: 34	1736	msdcsc.exe
Token: 35	1736	msdcsc.exe
Token: 36	1736	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1736 msdcsc.exe

pid	process
1736	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exeStage1.exemsdcsc.exe

description	pid	process	target process
PID 3032 wrote to memory of 1560	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 3032 wrote to memory of 1560	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 3032 wrote to memory of 1560	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 3032 wrote to memory of 1628	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 3032 wrote to memory of 1628	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 3032 wrote to memory of 1628	3032	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 1628 wrote to memory of 1736	1628	Stage1.exe	msdcsc.exe
PID 1628 wrote to memory of 1736	1628	Stage1.exe	msdcsc.exe
PID 1628 wrote to memory of 1736	1628	Stage1.exe	msdcsc.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe
PID 1736 wrote to memory of 824	1736	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3032

C:\Users\Admin\AppData\Local\Temp\Stage2.exe
"C:\Users\Admin\AppData\Local\Temp\Stage2.exe" x -y -oC:\Users\Admin\AppData\Local\Temp -pxnq8rPMxVI87ciGwWJHxRTy3iauHcIirteOOELv3B5vkS9kJoHBUAahY1dWxj8yA
2⤵
- Executes dropped EXE
PID:1560

C:\Users\Admin\AppData\Local\Temp\Stage1.exe
"C:\Users\Admin\AppData\Local\Temp\Stage1.exe"
2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:824

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:\Users\Admin\AppData\Local\Temp\Stage1.exe
Filesize
758KB

MD5
7c303d83d9e98481a51fbb713d9167ad

SHA1
41161fa33b57592a45283f49ce8639aeddc9505f

SHA256
03f99cbd454ab8b5d2fab9720f0280f4ebc7ff3d011278cac422894263f300fb

SHA512
013c590078de3830b6425ee45218e93739470b14c33538b25740a8b32b2054ba1efda306703d2a17429619b72774c789679a348082d847aaee09916ec0146473

Download Submit
C:\Users\Admin\AppData\Local\Temp\Stage2.exe
Filesize
376KB

MD5
ba4812abf562446e2bcda7f952a89593

SHA1
d6ce12b940c0564cbe6880947babf98caa818945

SHA256
34535400b392d926fa1f5ed60a768659afd57d33b969676a9ca6675961063127

SHA512
d44f7445a42a17f9ab7f662222a53442317eb8c64d6516ece6881b6c923360880e068708da84a9d1add66498b7cc8fe7c9a320b9bdd6a7a0f2dcd3d5f3a5f38b

Download Submit
memory/824-35-0x0000000000590000-0x0000000000591000-memory.dmp

Filesize
4KB

Download
memory/1560-12-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1560-16-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1628-19-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1628-32-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-38-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-46-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-33-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/1736-36-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-37-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-49-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-39-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-40-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-41-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-42-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-43-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-44-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-45-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-48-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/1736-47-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3032-34-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3032-0-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads