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

980 adobeARM.exe
2016 adobeARM.exe

pid	process
980	adobeARM.exe
2016	adobeARM.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1684-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2016-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2016-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeWerFault.exe

pid	process
1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
1692	WerFault.exe
1692	WerFault.exe
1692	WerFault.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-1-5-21-2292972927-2705560509-2768824231-1000\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 288 set thread context of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 980 set thread context of 2016	980	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
1236	288	WerFault.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
1692	980	WerFault.exe	adobeARM.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeadobeARM.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSecurityPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeTakeOwnershipPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeLoadDriverPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemProfilePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemtimePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeProfSingleProcessPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeIncBasePriorityPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeCreatePagefilePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeBackupPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeRestorePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeShutdownPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeDebugPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeSystemEnvironmentPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeChangeNotifyPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeRemoteShutdownPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeUndockPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeManageVolumePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeImpersonatePrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeCreateGlobalPrivilege	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 33	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 34	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: 35	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
Token: SeIncreaseQuotaPrivilege	2016	adobeARM.exe
Token: SeSecurityPrivilege	2016	adobeARM.exe
Token: SeTakeOwnershipPrivilege	2016	adobeARM.exe
Token: SeLoadDriverPrivilege	2016	adobeARM.exe
Token: SeSystemProfilePrivilege	2016	adobeARM.exe
Token: SeSystemtimePrivilege	2016	adobeARM.exe
Token: SeProfSingleProcessPrivilege	2016	adobeARM.exe
Token: SeIncBasePriorityPrivilege	2016	adobeARM.exe
Token: SeCreatePagefilePrivilege	2016	adobeARM.exe
Token: SeBackupPrivilege	2016	adobeARM.exe
Token: SeRestorePrivilege	2016	adobeARM.exe
Token: SeShutdownPrivilege	2016	adobeARM.exe
Token: SeDebugPrivilege	2016	adobeARM.exe
Token: SeSystemEnvironmentPrivilege	2016	adobeARM.exe
Token: SeChangeNotifyPrivilege	2016	adobeARM.exe
Token: SeRemoteShutdownPrivilege	2016	adobeARM.exe
Token: SeUndockPrivilege	2016	adobeARM.exe
Token: SeManageVolumePrivilege	2016	adobeARM.exe
Token: SeImpersonatePrivilege	2016	adobeARM.exe
Token: SeCreateGlobalPrivilege	2016	adobeARM.exe
Token: 33	2016	adobeARM.exe
Token: 34	2016	adobeARM.exe
Token: 35	2016	adobeARM.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

adobeARM.exe

pid process

2016 adobeARM.exe

pid	process
2016	adobeARM.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exeadobeARM.exe

description	pid	process	target process
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1684	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
PID 288 wrote to memory of 1236	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	WerFault.exe
PID 288 wrote to memory of 1236	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	WerFault.exe
PID 288 wrote to memory of 1236	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	WerFault.exe
PID 288 wrote to memory of 1236	288	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	WerFault.exe
PID 1684 wrote to memory of 980	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 1684 wrote to memory of 980	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 1684 wrote to memory of 980	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 1684 wrote to memory of 980	1684	3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 2016	980	adobeARM.exe	adobeARM.exe
PID 980 wrote to memory of 1692	980	adobeARM.exe	WerFault.exe
PID 980 wrote to memory of 1692	980	adobeARM.exe	WerFault.exe
PID 980 wrote to memory of 1692	980	adobeARM.exe	WerFault.exe
PID 980 wrote to memory of 1692	980	adobeARM.exe	WerFault.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:288

C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
C:\Users\Admin\AppData\Local\Temp\3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

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:980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 980 -s 92
4⤵
- Loads dropped DLL
- Program crash
PID:1692

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:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 288 -s 92
2⤵
- Program crash
PID:1236

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

System Information Discovery

1

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

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

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

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

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

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

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

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

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

MD5
3ed968b2400a5eca52fcf8dc1422ece0

SHA1
10cc685424f274c7b42d26cacf7ad2319fe56000

SHA256
3ddb383a5af8acedb8eda67932633d85a881739fbf9a87b10f664fe743b48c58

SHA512
e4260b501b476c613a121940de346e9d3d120329404b19a0d6d15862051358698de5528715369c8094b8934661d11afda4176fbf01fed318280f66e04591e92d

Download Submit
memory/980-68-0x0000000000000000-mapping.dmp

Download
memory/1236-63-0x0000000000000000-mapping.dmp

Download
memory/1684-59-0x00000000004B5770-mapping.dmp

Download
memory/1684-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-61-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/1692-78-0x0000000000000000-mapping.dmp

Download
memory/2016-76-0x00000000004B5770-mapping.dmp

Download
memory/2016-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

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memory/2016-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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