darkcomet | c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2022 11:03

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General

Target

c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Size

680KB
MD5

11c0cc59d85bd6bf89ac8215cb2d6bf0
SHA1

b3c28c6583ed5fdcff4cd8145d7bcca475ff4468
SHA256

c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117
SHA512

474ba0073354d65613ddb308498e0a917258a1a8017e68d4193210bf0207561c2ad546bbad8ebab9d5e4e1e510dbe0409d7bffd15b8e79f6643ce40b587d07d2
SSDEEP

12288:i9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hweAd:OZ1xuVVjfFoynPaVBUR8f+kN10EBS9d

Score

10^/10

darkcomet league persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

League

senolmasansaten.no-ip.org:1604

Mutex

DC_MUTEX-G5JE4FS

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
ZUszclZc3QEh
install
true
offline_keylogger
true
persistence
false
reg_key
rundlll

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\\DCSCMIN\\IMDCSC.exe"	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	IMDCSC.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	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.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\rundlll = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe

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\	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSecurityPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeTakeOwnershipPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeLoadDriverPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemProfilePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemtimePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeProfSingleProcessPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeIncBasePriorityPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeCreatePagefilePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeBackupPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeRestorePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeShutdownPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeDebugPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemEnvironmentPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeChangeNotifyPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeRemoteShutdownPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeUndockPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeManageVolumePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeImpersonatePrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeCreateGlobalPrivilege	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 33	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 34	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 35	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 36	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeIncreaseQuotaPrivilege	1008	IMDCSC.exe
Token: SeSecurityPrivilege	1008	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	1008	IMDCSC.exe
Token: SeLoadDriverPrivilege	1008	IMDCSC.exe
Token: SeSystemProfilePrivilege	1008	IMDCSC.exe
Token: SeSystemtimePrivilege	1008	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	1008	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	1008	IMDCSC.exe
Token: SeCreatePagefilePrivilege	1008	IMDCSC.exe
Token: SeBackupPrivilege	1008	IMDCSC.exe
Token: SeRestorePrivilege	1008	IMDCSC.exe
Token: SeShutdownPrivilege	1008	IMDCSC.exe
Token: SeDebugPrivilege	1008	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	1008	IMDCSC.exe
Token: SeChangeNotifyPrivilege	1008	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	1008	IMDCSC.exe
Token: SeUndockPrivilege	1008	IMDCSC.exe
Token: SeManageVolumePrivilege	1008	IMDCSC.exe
Token: SeImpersonatePrivilege	1008	IMDCSC.exe
Token: SeCreateGlobalPrivilege	1008	IMDCSC.exe
Token: 33	1008	IMDCSC.exe
Token: 34	1008	IMDCSC.exe
Token: 35	1008	IMDCSC.exe
Token: 36	1008	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1008	IMDCSC.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1804	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	84
PID 4348 wrote to memory of 1008	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	85
PID 4348 wrote to memory of 1008	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	85
PID 4348 wrote to memory of 1008	4348	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	85

C:\Users\Admin\AppData\Local\Temp\c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
"C:\Users\Admin\AppData\Local\Temp\c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe"
1⤵
- 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:4348
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  PID:1804
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1008

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\TUMBLR.JPG

Filesize
21KB

MD5
5f095584a23a197bf6bd8c27977a9a8f

SHA1
67d6913b77a7df89febfe5ec1d6439e7a2c71cab

SHA256
71c9482e99237a908920df95dc9a7e4a11159ac8e54a924f3b9e43af3d4b71f5

SHA512
fb1007ec16ad646ab9e21bd9407027a96d8bc4bc15c257ee5302f6d4dc88d7686567c467d14966baa381c872124d95b322d065dff1a4f3b913431e95c8844c0e

Download Submit
C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
680KB

MD5
11c0cc59d85bd6bf89ac8215cb2d6bf0

SHA1
b3c28c6583ed5fdcff4cd8145d7bcca475ff4468

SHA256
c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

SHA512
474ba0073354d65613ddb308498e0a917258a1a8017e68d4193210bf0207561c2ad546bbad8ebab9d5e4e1e510dbe0409d7bffd15b8e79f6643ce40b587d07d2

Download Submit
C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
680KB

MD5
11c0cc59d85bd6bf89ac8215cb2d6bf0

SHA1
b3c28c6583ed5fdcff4cd8145d7bcca475ff4468

SHA256
c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

SHA512
474ba0073354d65613ddb308498e0a917258a1a8017e68d4193210bf0207561c2ad546bbad8ebab9d5e4e1e510dbe0409d7bffd15b8e79f6643ce40b587d07d2

Download Submit
memory/1008-133-0x0000000000000000-mapping.dmp

Download
memory/1804-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads