darkcomet | 5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe

Analysis

max time kernel
151s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 15:44

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General

Target

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Size

1.6MB
MD5

2e241fbbbea811d82309f826a9485152
SHA1

8a2609de8f2257ae1cd5e37e2a9eda159a91e68c
SHA256

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe
SHA512

2039e8eb49c2bb9f0887f499c13a189169bfe940a64c689befbb8d8e1e9cd5541fa1a2940a1af917d461c6d221f163120df0aa7222519126957db2ac91afb740
SSDEEP

24576:tZ1xuVVjfFoynPaVBUR8f+kN10EBpCf250pIqO2Kl5nldl:3QDgok30LhRO2Kljdl

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

easypeasy123.ddns.net :1604

Mutex

DC_MUTEX-HNQBNRG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
eFXJN2rajLLJ
install
true
offline_keylogger
true
password
gomas123
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

T1004

Modify Registry

T1112

Processes:

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.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"	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe

Executes dropped EXE 3 IoCs

Processes:

CHROME.EXEmsdcsc.exeCHROME.EXE

pid process

948 CHROME.EXE
1376 msdcsc.exe
1372 CHROME.EXE

pid	process
948	CHROME.EXE
1376	msdcsc.exe
1372	CHROME.EXE

Loads dropped DLL 4 IoCs

Processes:

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exemsdcsc.exe

pid	process
912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
1376	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeSecurityPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeTakeOwnershipPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeLoadDriverPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeSystemProfilePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeSystemtimePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeProfSingleProcessPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeIncBasePriorityPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeCreatePagefilePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeBackupPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeRestorePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeShutdownPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeDebugPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeSystemEnvironmentPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeChangeNotifyPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeRemoteShutdownPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeUndockPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeManageVolumePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeImpersonatePrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeCreateGlobalPrivilege	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: 33	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: 34	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: 35	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
Token: SeIncreaseQuotaPrivilege	1376	msdcsc.exe
Token: SeSecurityPrivilege	1376	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1376	msdcsc.exe
Token: SeLoadDriverPrivilege	1376	msdcsc.exe
Token: SeSystemProfilePrivilege	1376	msdcsc.exe
Token: SeSystemtimePrivilege	1376	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1376	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1376	msdcsc.exe
Token: SeCreatePagefilePrivilege	1376	msdcsc.exe
Token: SeBackupPrivilege	1376	msdcsc.exe
Token: SeRestorePrivilege	1376	msdcsc.exe
Token: SeShutdownPrivilege	1376	msdcsc.exe
Token: SeDebugPrivilege	1376	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1376	msdcsc.exe
Token: SeChangeNotifyPrivilege	1376	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1376	msdcsc.exe
Token: SeUndockPrivilege	1376	msdcsc.exe
Token: SeManageVolumePrivilege	1376	msdcsc.exe
Token: SeImpersonatePrivilege	1376	msdcsc.exe
Token: SeCreateGlobalPrivilege	1376	msdcsc.exe
Token: 33	1376	msdcsc.exe
Token: 34	1376	msdcsc.exe
Token: 35	1376	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1376 msdcsc.exe

pid	process
1376	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe

description	pid	process	target process
PID 912 wrote to memory of 1376	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe	msdcsc.exe
PID 912 wrote to memory of 1376	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe	msdcsc.exe
PID 912 wrote to memory of 1376	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe	msdcsc.exe
PID 912 wrote to memory of 1376	912	5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe
"C:\Users\Admin\AppData\Local\Temp\5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Users\Admin\AppData\Local\Temp\CHROME.EXE
"C:\Users\Admin\AppData\Local\Temp\CHROME.EXE"
2⤵
- Executes dropped EXE
PID:948

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1376

C:\Users\Admin\AppData\Local\Temp\CHROME.EXE
"C:\Users\Admin\AppData\Local\Temp\CHROME.EXE"
3⤵
- Executes dropped EXE
PID:1372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CHROME.EXE

Filesize
832KB

MD5
ac08a03d7e579e2903925736e7ab48f2

SHA1
572c2c0d0e2343617cd6faa9f97b8a12acffa3f1

SHA256
b4350dfb5bf153d60c38835fd0d4a13a993b5fcede04f98750396edf0070b3fe

SHA512
9be294f8a80acfd40db3575f958358e6c5adbcdd6bafed75cb9c5f57c4c516c61ce812e7cd11c71f350bcfa4f60441e0f0fba3cb1cca1736b541967df28fede7

Download Submit
C:\Users\Admin\AppData\Local\Temp\CHROME.EXE

Filesize
832KB

MD5
ac08a03d7e579e2903925736e7ab48f2

SHA1
572c2c0d0e2343617cd6faa9f97b8a12acffa3f1

SHA256
b4350dfb5bf153d60c38835fd0d4a13a993b5fcede04f98750396edf0070b3fe

SHA512
9be294f8a80acfd40db3575f958358e6c5adbcdd6bafed75cb9c5f57c4c516c61ce812e7cd11c71f350bcfa4f60441e0f0fba3cb1cca1736b541967df28fede7

Download Submit
C:\Users\Admin\AppData\Local\Temp\CHROME.EXE

Filesize
832KB

MD5
ac08a03d7e579e2903925736e7ab48f2

SHA1
572c2c0d0e2343617cd6faa9f97b8a12acffa3f1

SHA256
b4350dfb5bf153d60c38835fd0d4a13a993b5fcede04f98750396edf0070b3fe

SHA512
9be294f8a80acfd40db3575f958358e6c5adbcdd6bafed75cb9c5f57c4c516c61ce812e7cd11c71f350bcfa4f60441e0f0fba3cb1cca1736b541967df28fede7

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.6MB

MD5
2e241fbbbea811d82309f826a9485152

SHA1
8a2609de8f2257ae1cd5e37e2a9eda159a91e68c

SHA256
5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe

SHA512
2039e8eb49c2bb9f0887f499c13a189169bfe940a64c689befbb8d8e1e9cd5541fa1a2940a1af917d461c6d221f163120df0aa7222519126957db2ac91afb740

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.6MB

MD5
2e241fbbbea811d82309f826a9485152

SHA1
8a2609de8f2257ae1cd5e37e2a9eda159a91e68c

SHA256
5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe

SHA512
2039e8eb49c2bb9f0887f499c13a189169bfe940a64c689befbb8d8e1e9cd5541fa1a2940a1af917d461c6d221f163120df0aa7222519126957db2ac91afb740

Download Submit
\Users\Admin\AppData\Local\Temp\CHROME.EXE

Filesize
832KB

MD5
ac08a03d7e579e2903925736e7ab48f2

SHA1
572c2c0d0e2343617cd6faa9f97b8a12acffa3f1

SHA256
b4350dfb5bf153d60c38835fd0d4a13a993b5fcede04f98750396edf0070b3fe

SHA512
9be294f8a80acfd40db3575f958358e6c5adbcdd6bafed75cb9c5f57c4c516c61ce812e7cd11c71f350bcfa4f60441e0f0fba3cb1cca1736b541967df28fede7

Download Submit
\Users\Admin\AppData\Local\Temp\CHROME.EXE

Filesize
832KB

MD5
ac08a03d7e579e2903925736e7ab48f2

SHA1
572c2c0d0e2343617cd6faa9f97b8a12acffa3f1

SHA256
b4350dfb5bf153d60c38835fd0d4a13a993b5fcede04f98750396edf0070b3fe

SHA512
9be294f8a80acfd40db3575f958358e6c5adbcdd6bafed75cb9c5f57c4c516c61ce812e7cd11c71f350bcfa4f60441e0f0fba3cb1cca1736b541967df28fede7

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.6MB

MD5
2e241fbbbea811d82309f826a9485152

SHA1
8a2609de8f2257ae1cd5e37e2a9eda159a91e68c

SHA256
5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe

SHA512
2039e8eb49c2bb9f0887f499c13a189169bfe940a64c689befbb8d8e1e9cd5541fa1a2940a1af917d461c6d221f163120df0aa7222519126957db2ac91afb740

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.6MB

MD5
2e241fbbbea811d82309f826a9485152

SHA1
8a2609de8f2257ae1cd5e37e2a9eda159a91e68c

SHA256
5e8965f5293e0d9a106e9fb26f5eca274fb02f8981050ac1945813d0f31fedbe

SHA512
2039e8eb49c2bb9f0887f499c13a189169bfe940a64c689befbb8d8e1e9cd5541fa1a2940a1af917d461c6d221f163120df0aa7222519126957db2ac91afb740

Download Submit
memory/912-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download
memory/1376-59-0x0000000000000000-mapping.dmp

Download