darkcomet | 458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d

Analysis

max time kernel
151s
max time network
160s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30/10/2022, 19:28

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General

Target

458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Size

658KB
MD5

81dd3e642183505a216cb92fee3a44a0
SHA1

5df216d391f07aee61d8fc5a8eb23030e0dea06d
SHA256

458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d
SHA512

d5c5b4fdf29d8f4fe40f4d1831468567d5d8f34b36775715534676a961362529468ae7456dc78997a00494b714341e91c51521a625290a3788dbac1edacb4b72
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/ht:qZ1xuVVjfFoynPaVBUR8f+kN10EBv

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

82.39.78.216:1607

82.39.78.216:1604

82.39.78.216:8080

Mutex

DC_MUTEX-P69T1EZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
7Fyl6zfBNCyj
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

T1004

Modify Registry

T1112

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"	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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"	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.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

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeSecurityPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeTakeOwnershipPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeLoadDriverPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeSystemProfilePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeSystemtimePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeProfSingleProcessPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeIncBasePriorityPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeCreatePagefilePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeBackupPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeRestorePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeShutdownPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeDebugPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeSystemEnvironmentPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeChangeNotifyPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeRemoteShutdownPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeUndockPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeManageVolumePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeImpersonatePrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeCreateGlobalPrivilege	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: 33	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: 34	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: 35	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
Token: SeIncreaseQuotaPrivilege	1664	msdcsc.exe
Token: SeSecurityPrivilege	1664	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1664	msdcsc.exe
Token: SeLoadDriverPrivilege	1664	msdcsc.exe
Token: SeSystemProfilePrivilege	1664	msdcsc.exe
Token: SeSystemtimePrivilege	1664	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1664	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1664	msdcsc.exe
Token: SeCreatePagefilePrivilege	1664	msdcsc.exe
Token: SeBackupPrivilege	1664	msdcsc.exe
Token: SeRestorePrivilege	1664	msdcsc.exe
Token: SeShutdownPrivilege	1664	msdcsc.exe
Token: SeDebugPrivilege	1664	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1664	msdcsc.exe
Token: SeChangeNotifyPrivilege	1664	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1664	msdcsc.exe
Token: SeUndockPrivilege	1664	msdcsc.exe
Token: SeManageVolumePrivilege	1664	msdcsc.exe
Token: SeImpersonatePrivilege	1664	msdcsc.exe
Token: SeCreateGlobalPrivilege	1664	msdcsc.exe
Token: 33	1664	msdcsc.exe
Token: 34	1664	msdcsc.exe
Token: 35	1664	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1664	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 1664	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe	27
PID 1604 wrote to memory of 1664	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe	27
PID 1604 wrote to memory of 1664	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe	27
PID 1604 wrote to memory of 1664	1604	458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe	27

C:\Users\Admin\AppData\Local\Temp\458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe
"C:\Users\Admin\AppData\Local\Temp\458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1664

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

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Downloads

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

Filesize
658KB

MD5
81dd3e642183505a216cb92fee3a44a0

SHA1
5df216d391f07aee61d8fc5a8eb23030e0dea06d

SHA256
458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d

SHA512
d5c5b4fdf29d8f4fe40f4d1831468567d5d8f34b36775715534676a961362529468ae7456dc78997a00494b714341e91c51521a625290a3788dbac1edacb4b72

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

Filesize
658KB

MD5
81dd3e642183505a216cb92fee3a44a0

SHA1
5df216d391f07aee61d8fc5a8eb23030e0dea06d

SHA256
458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d

SHA512
d5c5b4fdf29d8f4fe40f4d1831468567d5d8f34b36775715534676a961362529468ae7456dc78997a00494b714341e91c51521a625290a3788dbac1edacb4b72

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

Filesize
658KB

MD5
81dd3e642183505a216cb92fee3a44a0

SHA1
5df216d391f07aee61d8fc5a8eb23030e0dea06d

SHA256
458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d

SHA512
d5c5b4fdf29d8f4fe40f4d1831468567d5d8f34b36775715534676a961362529468ae7456dc78997a00494b714341e91c51521a625290a3788dbac1edacb4b72

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

Filesize
658KB

MD5
81dd3e642183505a216cb92fee3a44a0

SHA1
5df216d391f07aee61d8fc5a8eb23030e0dea06d

SHA256
458421dae4cac123f73a4d90a3b42f8423a8aa8018045371f94c4f059d3b918d

SHA512
d5c5b4fdf29d8f4fe40f4d1831468567d5d8f34b36775715534676a961362529468ae7456dc78997a00494b714341e91c51521a625290a3788dbac1edacb4b72

Download Submit
memory/1604-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads