darkcomet | 942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 10:26

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General

Target

942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Size

662KB
MD5

0a1d8f8dd5190e53e8a2419869243221
SHA1

f348282d158d12adb28e898cabed2803cd3d94a3
SHA256

942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906
SHA512

24bbc09167d7bdacc2a537227ffee4a276a353c0bafa2f0b6583ee3fddddabcff3a1bf04923f7384866d56683fba2ed96e725e6dc0818cbcdbbd7b2443cd5777
SSDEEP

12288:E3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RW:SOA4aWNn/m09fKIaaBEtWq3A1Ov8JgbE

Score

10^/10

darkcomet guest0_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest0_min

falfoul-chnayder.no-ip.biz:1604

Mutex

DCMIN_MUTEX-3JFEELN

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
HKU973wSilaS
install
true
offline_keylogger
true
persistence
false
reg_key
�� .a

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"	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe

Executes dropped EXE 1 IoCs

pid	Process
3540	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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ÏÇÑßßæãíÊ ÝÃÑ.a = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.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 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeSecurityPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeTakeOwnershipPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeLoadDriverPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeSystemProfilePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeSystemtimePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeProfSingleProcessPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeIncBasePriorityPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeCreatePagefilePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeBackupPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeRestorePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeShutdownPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeDebugPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeSystemEnvironmentPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeChangeNotifyPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeRemoteShutdownPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeUndockPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeManageVolumePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeImpersonatePrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeCreateGlobalPrivilege	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: 33	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: 34	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: 35	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: 36	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
Token: SeIncreaseQuotaPrivilege	3540	IMDCSC.exe
Token: SeSecurityPrivilege	3540	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	3540	IMDCSC.exe
Token: SeLoadDriverPrivilege	3540	IMDCSC.exe
Token: SeSystemProfilePrivilege	3540	IMDCSC.exe
Token: SeSystemtimePrivilege	3540	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	3540	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	3540	IMDCSC.exe
Token: SeCreatePagefilePrivilege	3540	IMDCSC.exe
Token: SeBackupPrivilege	3540	IMDCSC.exe
Token: SeRestorePrivilege	3540	IMDCSC.exe
Token: SeShutdownPrivilege	3540	IMDCSC.exe
Token: SeDebugPrivilege	3540	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	3540	IMDCSC.exe
Token: SeChangeNotifyPrivilege	3540	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	3540	IMDCSC.exe
Token: SeUndockPrivilege	3540	IMDCSC.exe
Token: SeManageVolumePrivilege	3540	IMDCSC.exe
Token: SeImpersonatePrivilege	3540	IMDCSC.exe
Token: SeCreateGlobalPrivilege	3540	IMDCSC.exe
Token: 33	3540	IMDCSC.exe
Token: 34	3540	IMDCSC.exe
Token: 35	3540	IMDCSC.exe
Token: 36	3540	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3540	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 3540	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe	84
PID 2688 wrote to memory of 3540	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe	84
PID 2688 wrote to memory of 3540	2688	942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe	84

C:\Users\Admin\AppData\Local\Temp\942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe
"C:\Users\Admin\AppData\Local\Temp\942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688
- 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:3540

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\Documents\DCSCMIN\IMDCSC.exe

Filesize
662KB

MD5
0a1d8f8dd5190e53e8a2419869243221

SHA1
f348282d158d12adb28e898cabed2803cd3d94a3

SHA256
942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906

SHA512
24bbc09167d7bdacc2a537227ffee4a276a353c0bafa2f0b6583ee3fddddabcff3a1bf04923f7384866d56683fba2ed96e725e6dc0818cbcdbbd7b2443cd5777

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

Filesize
662KB

MD5
0a1d8f8dd5190e53e8a2419869243221

SHA1
f348282d158d12adb28e898cabed2803cd3d94a3

SHA256
942d7c7eab4d4e739876c877984474b272be47e974a8bb70ba1c093ec8bbe906

SHA512
24bbc09167d7bdacc2a537227ffee4a276a353c0bafa2f0b6583ee3fddddabcff3a1bf04923f7384866d56683fba2ed96e725e6dc0818cbcdbbd7b2443cd5777

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads