darkcomet | c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

Analysis

max time kernel
150s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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
1184	IMDCSC.exe

Deletes itself 1 IoCs

pid	Process
1516	notepad.exe

Loads dropped DLL 2 IoCs

pid	Process
1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
1148	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-1-5-21-999675638-2867687379-27515722-1000\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

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSecurityPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeTakeOwnershipPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeLoadDriverPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemProfilePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemtimePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeProfSingleProcessPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeIncBasePriorityPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeCreatePagefilePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeBackupPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeRestorePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeShutdownPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeDebugPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeSystemEnvironmentPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeChangeNotifyPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeRemoteShutdownPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeUndockPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeManageVolumePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeImpersonatePrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeCreateGlobalPrivilege	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 33	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 34	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: 35	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
Token: SeIncreaseQuotaPrivilege	1184	IMDCSC.exe
Token: SeSecurityPrivilege	1184	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	1184	IMDCSC.exe
Token: SeLoadDriverPrivilege	1184	IMDCSC.exe
Token: SeSystemProfilePrivilege	1184	IMDCSC.exe
Token: SeSystemtimePrivilege	1184	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	1184	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	1184	IMDCSC.exe
Token: SeCreatePagefilePrivilege	1184	IMDCSC.exe
Token: SeBackupPrivilege	1184	IMDCSC.exe
Token: SeRestorePrivilege	1184	IMDCSC.exe
Token: SeShutdownPrivilege	1184	IMDCSC.exe
Token: SeDebugPrivilege	1184	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	1184	IMDCSC.exe
Token: SeChangeNotifyPrivilege	1184	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	1184	IMDCSC.exe
Token: SeUndockPrivilege	1184	IMDCSC.exe
Token: SeManageVolumePrivilege	1184	IMDCSC.exe
Token: SeImpersonatePrivilege	1184	IMDCSC.exe
Token: SeCreateGlobalPrivilege	1184	IMDCSC.exe
Token: 33	1184	IMDCSC.exe
Token: 34	1184	IMDCSC.exe
Token: 35	1184	IMDCSC.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1104	DllHost.exe
1104	DllHost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1184	IMDCSC.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1516	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	28
PID 1148 wrote to memory of 1184	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	29
PID 1148 wrote to memory of 1184	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	29
PID 1148 wrote to memory of 1184	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	29
PID 1148 wrote to memory of 1184	1148	c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe	29

C:\Users\Admin\AppData\Local\Temp\c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe
"C:\Users\Admin\AppData\Local\Temp\c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:1516
- 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:1184

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1104

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\AppData\Local\Temp\TUMBLR.JPG

Filesize
21KB

MD5
5f095584a23a197bf6bd8c27977a9a8f

SHA1
67d6913b77a7df89febfe5ec1d6439e7a2c71cab

SHA256
71c9482e99237a908920df95dc9a7e4a11159ac8e54a924f3b9e43af3d4b71f5

SHA512
fb1007ec16ad646ab9e21bd9407027a96d8bc4bc15c257ee5302f6d4dc88d7686567c467d14966baa381c872124d95b322d065dff1a4f3b913431e95c8844c0e

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

Filesize
680KB

MD5
11c0cc59d85bd6bf89ac8215cb2d6bf0

SHA1
b3c28c6583ed5fdcff4cd8145d7bcca475ff4468

SHA256
c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

SHA512
474ba0073354d65613ddb308498e0a917258a1a8017e68d4193210bf0207561c2ad546bbad8ebab9d5e4e1e510dbe0409d7bffd15b8e79f6643ce40b587d07d2

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

Filesize
680KB

MD5
11c0cc59d85bd6bf89ac8215cb2d6bf0

SHA1
b3c28c6583ed5fdcff4cd8145d7bcca475ff4468

SHA256
c3882979a320751a28a294b86caa123f55861b9a2e5ee952bf7df9e7dd708117

SHA512
474ba0073354d65613ddb308498e0a917258a1a8017e68d4193210bf0207561c2ad546bbad8ebab9d5e4e1e510dbe0409d7bffd15b8e79f6643ce40b587d07d2

Download Submit
memory/1148-54-0x0000000074C11000-0x0000000074C13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads