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

Executes dropped EXE 3 IoCs

Processes:

Stage2.exeStage1.exemsdcsc.exe

pid process

2012 Stage2.exe
2716 Stage1.exe
2724 msdcsc.exe

pid	process
2012	Stage2.exe
2716	Stage1.exe
2724	msdcsc.exe

Loads dropped DLL 6 IoCs

Processes:

ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exeStage1.exe

pid	process
2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
2716	Stage1.exe
2716	Stage1.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2276-0-0x0000000000400000-0x0000000000424000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\Stage2.exe	upx
behavioral1/memory/2276-5-0x0000000002A60000-0x0000000002AA3000-memory.dmp	upx
behavioral1/memory/2012-16-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2276-34-0x0000000000400000-0x0000000000424000-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-1-5-21-3452737119-3959686427-228443150-1000\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 46 IoCs

Processes:

Stage1.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2716	Stage1.exe
Token: SeSecurityPrivilege	2716	Stage1.exe
Token: SeTakeOwnershipPrivilege	2716	Stage1.exe
Token: SeLoadDriverPrivilege	2716	Stage1.exe
Token: SeSystemProfilePrivilege	2716	Stage1.exe
Token: SeSystemtimePrivilege	2716	Stage1.exe
Token: SeProfSingleProcessPrivilege	2716	Stage1.exe
Token: SeIncBasePriorityPrivilege	2716	Stage1.exe
Token: SeCreatePagefilePrivilege	2716	Stage1.exe
Token: SeBackupPrivilege	2716	Stage1.exe
Token: SeRestorePrivilege	2716	Stage1.exe
Token: SeShutdownPrivilege	2716	Stage1.exe
Token: SeDebugPrivilege	2716	Stage1.exe
Token: SeSystemEnvironmentPrivilege	2716	Stage1.exe
Token: SeChangeNotifyPrivilege	2716	Stage1.exe
Token: SeRemoteShutdownPrivilege	2716	Stage1.exe
Token: SeUndockPrivilege	2716	Stage1.exe
Token: SeManageVolumePrivilege	2716	Stage1.exe
Token: SeImpersonatePrivilege	2716	Stage1.exe
Token: SeCreateGlobalPrivilege	2716	Stage1.exe
Token: 33	2716	Stage1.exe
Token: 34	2716	Stage1.exe
Token: 35	2716	Stage1.exe
Token: SeIncreaseQuotaPrivilege	2724	msdcsc.exe
Token: SeSecurityPrivilege	2724	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2724	msdcsc.exe
Token: SeLoadDriverPrivilege	2724	msdcsc.exe
Token: SeSystemProfilePrivilege	2724	msdcsc.exe
Token: SeSystemtimePrivilege	2724	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2724	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2724	msdcsc.exe
Token: SeCreatePagefilePrivilege	2724	msdcsc.exe
Token: SeBackupPrivilege	2724	msdcsc.exe
Token: SeRestorePrivilege	2724	msdcsc.exe
Token: SeShutdownPrivilege	2724	msdcsc.exe
Token: SeDebugPrivilege	2724	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2724	msdcsc.exe
Token: SeChangeNotifyPrivilege	2724	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2724	msdcsc.exe
Token: SeUndockPrivilege	2724	msdcsc.exe
Token: SeManageVolumePrivilege	2724	msdcsc.exe
Token: SeImpersonatePrivilege	2724	msdcsc.exe
Token: SeCreateGlobalPrivilege	2724	msdcsc.exe
Token: 33	2724	msdcsc.exe
Token: 34	2724	msdcsc.exe
Token: 35	2724	msdcsc.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exeStage1.exemsdcsc.exe

description	pid	process	target process
PID 2276 wrote to memory of 2012	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 2276 wrote to memory of 2012	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 2276 wrote to memory of 2012	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 2276 wrote to memory of 2012	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage2.exe
PID 2276 wrote to memory of 2716	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 2276 wrote to memory of 2716	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 2276 wrote to memory of 2716	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 2276 wrote to memory of 2716	2276	ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe	Stage1.exe
PID 2716 wrote to memory of 2724	2716	Stage1.exe	msdcsc.exe
PID 2716 wrote to memory of 2724	2716	Stage1.exe	msdcsc.exe
PID 2716 wrote to memory of 2724	2716	Stage1.exe	msdcsc.exe
PID 2716 wrote to memory of 2724	2716	Stage1.exe	msdcsc.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe
PID 2724 wrote to memory of 2580	2724	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ece22edeb630f6ea780e2ddc01fa0005_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2276

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:2012

C:\Users\Admin\AppData\Local\Temp\Stage1.exe
"C:\Users\Admin\AppData\Local\Temp\Stage1.exe"
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2716

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 WriteProcessMemory
PID:2724

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:2580

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

System Information Discovery

1

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
\Users\Admin\AppData\Local\Temp\Stage2.exe
Filesize
376KB

MD5
ba4812abf562446e2bcda7f952a89593

SHA1
d6ce12b940c0564cbe6880947babf98caa818945

SHA256
34535400b392d926fa1f5ed60a768659afd57d33b969676a9ca6675961063127

SHA512
d44f7445a42a17f9ab7f662222a53442317eb8c64d6516ece6881b6c923360880e068708da84a9d1add66498b7cc8fe7c9a320b9bdd6a7a0f2dcd3d5f3a5f38b

Download Submit
memory/2012-16-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2276-0-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2276-5-0x0000000002A60000-0x0000000002AA3000-memory.dmp

Filesize
268KB

Download
memory/2276-11-0x0000000002A60000-0x0000000002AA3000-memory.dmp

Filesize
268KB

Download
memory/2276-34-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-35-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2716-21-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2716-31-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2724-33-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2724-57-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads