darkcomet | 3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

General

Target

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Size

546KB
MD5

3ed968b2400a5eca52fcf8dc1422ece0
SHA1

10cc685424f274c7b42d26cacf7ad2319fe56000
SHA256

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58
SHA512

e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d
SSDEEP

6144:yJanGOkb7CaMWBe/IMr0yRu7ZcUBpofb71/cJlClb:y+G2WBqxgN7ZcUBGfb5/cJlCh

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

nonalova.no-ip.org:82

Mutex

DC_MUTEX-Q0QWMJU

Attributes

InstallPath
adobe\adobeARM.exe
gencode
GNFv06aHFX6N
install
true
offline_keylogger
true
persistence
false
reg_key
adobeARM

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

T1004

Modify Registry

T1112

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\adobe\\adobeARM.exe"	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

Executes dropped EXE 2 IoCs

Processes:

adobeARM.exeadobeARM.exe

pid process

3044 adobeARM.exe
4052 adobeARM.exe

pid	process
3044	adobeARM.exe
4052	adobeARM.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3340-133-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-134-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-135-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-136-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-137-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-138-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3340-148-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4052-149-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4052-150-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\adobeARM = "C:\\Users\\Admin\\AppData\\Roaming\\adobe\\adobeARM.exe"	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeadobeARM.exe

description	pid	process	target process
PID 4072 set thread context of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 3044 set thread context of 4052	3044	adobeARM.exe	adobeARM.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
3432	4072	WerFault.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
5084	3044	WerFault.exe	adobeARM.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeadobeARM.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSecurityPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeTakeOwnershipPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeLoadDriverPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemProfilePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemtimePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeProfSingleProcessPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeIncBasePriorityPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeCreatePagefilePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeBackupPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeRestorePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeShutdownPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeDebugPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemEnvironmentPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeChangeNotifyPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeRemoteShutdownPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeUndockPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeManageVolumePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeImpersonatePrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeCreateGlobalPrivilege	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 33	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 34	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 35	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 36	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeIncreaseQuotaPrivilege	4052	adobeARM.exe
Token: SeSecurityPrivilege	4052	adobeARM.exe
Token: SeTakeOwnershipPrivilege	4052	adobeARM.exe
Token: SeLoadDriverPrivilege	4052	adobeARM.exe
Token: SeSystemProfilePrivilege	4052	adobeARM.exe
Token: SeSystemtimePrivilege	4052	adobeARM.exe
Token: SeProfSingleProcessPrivilege	4052	adobeARM.exe
Token: SeIncBasePriorityPrivilege	4052	adobeARM.exe
Token: SeCreatePagefilePrivilege	4052	adobeARM.exe
Token: SeBackupPrivilege	4052	adobeARM.exe
Token: SeRestorePrivilege	4052	adobeARM.exe
Token: SeShutdownPrivilege	4052	adobeARM.exe
Token: SeDebugPrivilege	4052	adobeARM.exe
Token: SeSystemEnvironmentPrivilege	4052	adobeARM.exe
Token: SeChangeNotifyPrivilege	4052	adobeARM.exe
Token: SeRemoteShutdownPrivilege	4052	adobeARM.exe
Token: SeUndockPrivilege	4052	adobeARM.exe
Token: SeManageVolumePrivilege	4052	adobeARM.exe
Token: SeImpersonatePrivilege	4052	adobeARM.exe
Token: SeCreateGlobalPrivilege	4052	adobeARM.exe
Token: 33	4052	adobeARM.exe
Token: 34	4052	adobeARM.exe
Token: 35	4052	adobeARM.exe
Token: 36	4052	adobeARM.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

adobeARM.exe

pid process

4052 adobeARM.exe

pid	process
4052	adobeARM.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeadobeARM.exe

description	pid	process	target process
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 4072 wrote to memory of 3340	4072	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 3340 wrote to memory of 3044	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 3340 wrote to memory of 3044	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 3340 wrote to memory of 3044	3340	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe
PID 3044 wrote to memory of 4052	3044	adobeARM.exe	adobeARM.exe

C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
"C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4072

C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340

C:\Users\Admin\AppData\Roaming\adobe\adobeARM.exe
"C:\Users\Admin\AppData\Roaming\adobe\adobeARM.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3044

C:\Users\Admin\AppData\Roaming\adobe\adobeARM.exe
C:\Users\Admin\AppData\Roaming\adobe\adobeARM.exe
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 256
4⤵
- Program crash
PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4072 -s 276
2⤵
- Program crash
PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4072 -ip 4072
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3044 -ip 3044
1⤵
PID:816

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\adobeARM.exe
Filesize
546KB

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

Download Submit
C:\Users\Admin\AppData\Roaming\Adobe\adobeARM.exe
Filesize
546KB

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

Download Submit
C:\Users\Admin\AppData\Roaming\adobe\adobeARM.exe
Filesize
546KB

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

Download Submit
memory/3044-139-0x0000000000000000-mapping.dmp

Download
memory/3340-135-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-137-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-138-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-136-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-132-0x0000000000000000-mapping.dmp

Download
memory/3340-134-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-133-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3340-148-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4052-142-0x0000000000000000-mapping.dmp

Download
memory/4052-149-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4052-150-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads