darkcomet | 24bf92019649514209d62b7924a6ee188d4a5f8679af9307ee35d8b49480ba14

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12-07-2024 21:16

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General

Target

AIM 1x2.exe
Size

714KB
MD5

ee037acc6ced4a2ea99866bd9f5d2531
SHA1

fe02e28cd8a8c3237cf7d958ff1517f52c90faaa
SHA256

c83c1eb034a7688d564cd841c0c6d51e85890df161bf233ae3efee67a29d9cad
SHA512

6370bb8fc8aaa12c92b55f3ade5cd4e93697721ed6bf6da9c1aa4a48b23ccb19a00cf0a8cb3b39581463f2d79b685cbc3cda6168c42de50ab952668aa5684471
SSDEEP

12288:CaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdf:TAEENIq8XwyVPQclDq/+WnpsSf

Score

10^/10

darkcomet latentbot persistence rat trojan

Malware Config

Extracted

Family

latentbot

mastershaff.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	AIM 1x2.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	AIM 1x2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.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-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	AIM 1x2.exe

Executes dropped EXE 1 IoCs

pid	Process
3340	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	AIM 1x2.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AIM 1x2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AIM 1x2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AIM 1x2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	AIM 1x2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	AIM 1x2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2816	AIM 1x2.exe
Token: SeSecurityPrivilege	2816	AIM 1x2.exe
Token: SeTakeOwnershipPrivilege	2816	AIM 1x2.exe
Token: SeLoadDriverPrivilege	2816	AIM 1x2.exe
Token: SeSystemProfilePrivilege	2816	AIM 1x2.exe
Token: SeSystemtimePrivilege	2816	AIM 1x2.exe
Token: SeProfSingleProcessPrivilege	2816	AIM 1x2.exe
Token: SeIncBasePriorityPrivilege	2816	AIM 1x2.exe
Token: SeCreatePagefilePrivilege	2816	AIM 1x2.exe
Token: SeBackupPrivilege	2816	AIM 1x2.exe
Token: SeRestorePrivilege	2816	AIM 1x2.exe
Token: SeShutdownPrivilege	2816	AIM 1x2.exe
Token: SeDebugPrivilege	2816	AIM 1x2.exe
Token: SeSystemEnvironmentPrivilege	2816	AIM 1x2.exe
Token: SeChangeNotifyPrivilege	2816	AIM 1x2.exe
Token: SeRemoteShutdownPrivilege	2816	AIM 1x2.exe
Token: SeUndockPrivilege	2816	AIM 1x2.exe
Token: SeManageVolumePrivilege	2816	AIM 1x2.exe
Token: SeImpersonatePrivilege	2816	AIM 1x2.exe
Token: SeCreateGlobalPrivilege	2816	AIM 1x2.exe
Token: 33	2816	AIM 1x2.exe
Token: 34	2816	AIM 1x2.exe
Token: 35	2816	AIM 1x2.exe
Token: 36	2816	AIM 1x2.exe
Token: SeIncreaseQuotaPrivilege	3340	winupdate.exe
Token: SeSecurityPrivilege	3340	winupdate.exe
Token: SeTakeOwnershipPrivilege	3340	winupdate.exe
Token: SeLoadDriverPrivilege	3340	winupdate.exe
Token: SeSystemProfilePrivilege	3340	winupdate.exe
Token: SeSystemtimePrivilege	3340	winupdate.exe
Token: SeProfSingleProcessPrivilege	3340	winupdate.exe
Token: SeIncBasePriorityPrivilege	3340	winupdate.exe
Token: SeCreatePagefilePrivilege	3340	winupdate.exe
Token: SeBackupPrivilege	3340	winupdate.exe
Token: SeRestorePrivilege	3340	winupdate.exe
Token: SeShutdownPrivilege	3340	winupdate.exe
Token: SeDebugPrivilege	3340	winupdate.exe
Token: SeSystemEnvironmentPrivilege	3340	winupdate.exe
Token: SeChangeNotifyPrivilege	3340	winupdate.exe
Token: SeRemoteShutdownPrivilege	3340	winupdate.exe
Token: SeUndockPrivilege	3340	winupdate.exe
Token: SeManageVolumePrivilege	3340	winupdate.exe
Token: SeImpersonatePrivilege	3340	winupdate.exe
Token: SeCreateGlobalPrivilege	3340	winupdate.exe
Token: 33	3340	winupdate.exe
Token: 34	3340	winupdate.exe
Token: 35	3340	winupdate.exe
Token: 36	3340	winupdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 3340	2816	AIM 1x2.exe	86
PID 2816 wrote to memory of 3340	2816	AIM 1x2.exe	86
PID 2816 wrote to memory of 3340	2816	AIM 1x2.exe	86

C:\Users\Admin\AppData\Local\Temp\AIM 1x2.exe
"C:\Users\Admin\AppData\Local\Temp\AIM 1x2.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:3340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

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:\Windupdt\winupdate.exe

Filesize
714KB

MD5
ee037acc6ced4a2ea99866bd9f5d2531

SHA1
fe02e28cd8a8c3237cf7d958ff1517f52c90faaa

SHA256
c83c1eb034a7688d564cd841c0c6d51e85890df161bf233ae3efee67a29d9cad

SHA512
6370bb8fc8aaa12c92b55f3ade5cd4e93697721ed6bf6da9c1aa4a48b23ccb19a00cf0a8cb3b39581463f2d79b685cbc3cda6168c42de50ab952668aa5684471

Download Submit
memory/2816-0-0x00000000022F0000-0x00000000022F1000-memory.dmp

Filesize
4KB

Download
memory/2816-10-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-16-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-18-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-13-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-14-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-15-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-11-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/3340-17-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-12-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-19-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-20-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-21-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-22-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-23-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-24-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/3340-25-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads