darkcomet | d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420

General

Target

d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe
Size

498KB
MD5

1bddf9a06684a1cf0d88dacdf407fc20
SHA1

a6d1769c6e15a82434913476dac42d90a3ae3b43
SHA256

d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420
SHA512

5b02a92e8e67b5e74f0ba7838b708cfd3cebc8e754345351d5bfaf68e44a6b4498cef6461358355f25d42e4f75fb40b6bc59cd368f0945af5145b1986f52dd21
SSDEEP

12288:ch5C8uBkFzIkjFNT9RA73gTSZv7xbVxCfk7Kl0ywos:GiZkx996LM+7Z4WKl0yx

Score

10^/10

darkcomet 313 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

313

C2

samantha.servebeer.com:1604

Mutex

DC_MUTEX-61Q6CYX

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
cbF34c47laEA
install
true
offline_keylogger
false
persistence
true
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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.exe

Executes dropped EXE 2 IoCs

pid	Process
2032	vbc.exe
1544	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe
2032	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 268 set thread context of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28

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 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe
Token: SeIncreaseQuotaPrivilege	2032	vbc.exe
Token: SeSecurityPrivilege	2032	vbc.exe
Token: SeTakeOwnershipPrivilege	2032	vbc.exe
Token: SeLoadDriverPrivilege	2032	vbc.exe
Token: SeSystemProfilePrivilege	2032	vbc.exe
Token: SeSystemtimePrivilege	2032	vbc.exe
Token: SeProfSingleProcessPrivilege	2032	vbc.exe
Token: SeIncBasePriorityPrivilege	2032	vbc.exe
Token: SeCreatePagefilePrivilege	2032	vbc.exe
Token: SeBackupPrivilege	2032	vbc.exe
Token: SeRestorePrivilege	2032	vbc.exe
Token: SeShutdownPrivilege	2032	vbc.exe
Token: SeDebugPrivilege	2032	vbc.exe
Token: SeSystemEnvironmentPrivilege	2032	vbc.exe
Token: SeChangeNotifyPrivilege	2032	vbc.exe
Token: SeRemoteShutdownPrivilege	2032	vbc.exe
Token: SeUndockPrivilege	2032	vbc.exe
Token: SeManageVolumePrivilege	2032	vbc.exe
Token: SeImpersonatePrivilege	2032	vbc.exe
Token: SeCreateGlobalPrivilege	2032	vbc.exe
Token: 33	2032	vbc.exe
Token: 34	2032	vbc.exe
Token: 35	2032	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 268 wrote to memory of 2032	268	d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe	28
PID 2032 wrote to memory of 1544	2032	vbc.exe	29
PID 2032 wrote to memory of 1544	2032	vbc.exe	29
PID 2032 wrote to memory of 1544	2032	vbc.exe	29
PID 2032 wrote to memory of 1544	2032	vbc.exe	29

C:\Users\Admin\AppData\Local\Temp\d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe
"C:\Users\Admin\AppData\Local\Temp\d2c2064eb6a9cd1bfb734e2f97ecb73ac5331a43988d0408e0aec167c39fb420.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:268
- C:\Users\Admin\AppData\Local\Temp\temp_ckAElUWDQU\vbc.exe
  "C:\Users\Admin\AppData\Local\Temp\temp_ckAElUWDQU\vbc.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    PID:1544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\Users\Admin\AppData\Local\Temp\temp_ckAElUWDQU\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\Users\Admin\AppData\Local\Temp\temp_ckAElUWDQU\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\temp_ckAElUWDQU\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/268-75-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/268-55-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/268-54-0x00000000753F1000-0x00000000753F3000-memory.dmp

Filesize
8KB

Download
memory/2032-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2032-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads