darkcomet | 8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43

General

Target

8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Size

4.9MB
MD5

9b094a5fe7d25e1c1510fd334e69417a
SHA1

1a7e7435cbcc798fce50c0f66b9b507fde5ba15a
SHA256

8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43
SHA512

ad5175c4e9dfef8da35f3477fd782b6beee77c770cf7795f191124304d8bbeaefb416a5a55c1daecd3f2bd1aaf9f04651ce63f4b2106afdf19659c6add6e1432
SSDEEP

24576:J/F7Ju6OqDIUjjPROsBl6tYYJYMgnC2uNkMdtnUUDWVvP7nXDsx6kzWS1DlOpFoY:zNPDIUjrvwPgr8rDDO7n26SWwOpiUL7

Score

10^/10

darkcomet 9/21/13 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

9/21/13

C2

davidgarcia.no-ip.biz:1604

Mutex

DC_MUTEX-WZKKJZQ

Attributes

InstallPath
MSDCSC\scvhost.exe
gencode
PBqzA7TLE5pH
install
true
offline_keylogger
true
persistence
true
reg_key
scvhost update

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\\scvhost.exe"	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe

Executes dropped EXE 1 IoCs

pid	Process
2172	scvhost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\scvhost update = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\scvhost.exe"	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 540 set thread context of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeSecurityPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeTakeOwnershipPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeLoadDriverPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeSystemProfilePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeSystemtimePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeProfSingleProcessPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeIncBasePriorityPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeCreatePagefilePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeBackupPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeRestorePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeShutdownPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeDebugPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeSystemEnvironmentPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeChangeNotifyPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeRemoteShutdownPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeUndockPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeManageVolumePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeImpersonatePrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: SeCreateGlobalPrivilege	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: 33	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: 34	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: 35	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
Token: 36	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 540 wrote to memory of 2072	540	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	86
PID 2072 wrote to memory of 2172	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	87
PID 2072 wrote to memory of 2172	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	87
PID 2072 wrote to memory of 2172	2072	8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe	87

C:\Users\Admin\AppData\Local\Temp\8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
"C:\Users\Admin\AppData\Local\Temp\8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe
  "C:\Users\Admin\AppData\Local\Temp\8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\scvhost.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\scvhost.exe"
    3⤵
    - Executes dropped EXE
    PID:2172

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
4.9MB

MD5
9b094a5fe7d25e1c1510fd334e69417a

SHA1
1a7e7435cbcc798fce50c0f66b9b507fde5ba15a

SHA256
8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43

SHA512
ad5175c4e9dfef8da35f3477fd782b6beee77c770cf7795f191124304d8bbeaefb416a5a55c1daecd3f2bd1aaf9f04651ce63f4b2106afdf19659c6add6e1432

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

Filesize
4.9MB

MD5
9b094a5fe7d25e1c1510fd334e69417a

SHA1
1a7e7435cbcc798fce50c0f66b9b507fde5ba15a

SHA256
8ace767a080fa7f21b454fc4652c7db4a629b15b9d53a66e570ae0e4ea5daa43

SHA512
ad5175c4e9dfef8da35f3477fd782b6beee77c770cf7795f191124304d8bbeaefb416a5a55c1daecd3f2bd1aaf9f04651ce63f4b2106afdf19659c6add6e1432

Download Submit
memory/540-135-0x0000000000400000-0x00000000008EE000-memory.dmp

Filesize
4.9MB

Download
memory/2072-133-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2072-134-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2072-136-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2072-137-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2072-141-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads