darkcomet | 8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae

General

Target

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Size

660KB
MD5

52bfb324974e9ab5a8f54283e7745d2f
SHA1

089fad32b5646f8ae549defde60a4eddde9828dc
SHA256

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae
SHA512

27552016129a3197a33ad605851a3980bf5d3b258761736a7ca0da4e4f0a99d50a9d8838b34bc921ee62b4edb8db0f75dde5ebbd24d2b3fcd393f4f8514176c5
SSDEEP

12288:MXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452UX:anAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jn

Score

10^/10

darkcomet s.h persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

s.H

C2

99rat.no-ip.org:8030

Mutex

DC_MUTEX-T5PPTUC

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
A8l2eew7bzlB
install
true
offline_keylogger
true
password
159632
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:

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.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"	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1068 msdcsc.exe

pid	process
1068	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe

pid	process
1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.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:

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeSecurityPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeTakeOwnershipPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeLoadDriverPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeSystemProfilePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeSystemtimePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeProfSingleProcessPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeIncBasePriorityPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeCreatePagefilePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeBackupPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeRestorePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeShutdownPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeDebugPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeSystemEnvironmentPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeChangeNotifyPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeRemoteShutdownPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeUndockPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeManageVolumePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeImpersonatePrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeCreateGlobalPrivilege	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: 33	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: 34	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: 35	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
Token: SeIncreaseQuotaPrivilege	1068	msdcsc.exe
Token: SeSecurityPrivilege	1068	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1068	msdcsc.exe
Token: SeLoadDriverPrivilege	1068	msdcsc.exe
Token: SeSystemProfilePrivilege	1068	msdcsc.exe
Token: SeSystemtimePrivilege	1068	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1068	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1068	msdcsc.exe
Token: SeCreatePagefilePrivilege	1068	msdcsc.exe
Token: SeBackupPrivilege	1068	msdcsc.exe
Token: SeRestorePrivilege	1068	msdcsc.exe
Token: SeShutdownPrivilege	1068	msdcsc.exe
Token: SeDebugPrivilege	1068	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1068	msdcsc.exe
Token: SeChangeNotifyPrivilege	1068	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1068	msdcsc.exe
Token: SeUndockPrivilege	1068	msdcsc.exe
Token: SeManageVolumePrivilege	1068	msdcsc.exe
Token: SeImpersonatePrivilege	1068	msdcsc.exe
Token: SeCreateGlobalPrivilege	1068	msdcsc.exe
Token: 33	1068	msdcsc.exe
Token: 34	1068	msdcsc.exe
Token: 35	1068	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1068 msdcsc.exe

pid	process
1068	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe

description	pid	process	target process
PID 1324 wrote to memory of 1068	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe	msdcsc.exe
PID 1324 wrote to memory of 1068	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe	msdcsc.exe
PID 1324 wrote to memory of 1068	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe	msdcsc.exe
PID 1324 wrote to memory of 1068	1324	8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe
"C:\Users\Admin\AppData\Local\Temp\8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324

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:1068

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
660KB

MD5
52bfb324974e9ab5a8f54283e7745d2f

SHA1
089fad32b5646f8ae549defde60a4eddde9828dc

SHA256
8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae

SHA512
27552016129a3197a33ad605851a3980bf5d3b258761736a7ca0da4e4f0a99d50a9d8838b34bc921ee62b4edb8db0f75dde5ebbd24d2b3fcd393f4f8514176c5

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

Filesize
660KB

MD5
52bfb324974e9ab5a8f54283e7745d2f

SHA1
089fad32b5646f8ae549defde60a4eddde9828dc

SHA256
8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae

SHA512
27552016129a3197a33ad605851a3980bf5d3b258761736a7ca0da4e4f0a99d50a9d8838b34bc921ee62b4edb8db0f75dde5ebbd24d2b3fcd393f4f8514176c5

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

Filesize
660KB

MD5
52bfb324974e9ab5a8f54283e7745d2f

SHA1
089fad32b5646f8ae549defde60a4eddde9828dc

SHA256
8b4c18ab5a94c2119232b0648397c6824db94420349ad1ca5e79a73b6d5a28ae

SHA512
27552016129a3197a33ad605851a3980bf5d3b258761736a7ca0da4e4f0a99d50a9d8838b34bc921ee62b4edb8db0f75dde5ebbd24d2b3fcd393f4f8514176c5

Download Submit
memory/1068-57-0x0000000000000000-mapping.dmp

Download
memory/1324-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads