darkcomet | 6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b

Analysis

max time kernel
152s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2022, 22:42

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General

Target
6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe
Size 718KB
Sample221019-2m6mssbeh8
SHA256 6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b
MD5 922ce715400ecbdf2a60ee8bb6d3a830
SHA1 599c329c9b14f5286fd8ad8b126d50384f588d07
SHA512 13c6c418792b8a61bb70f7f50ae5cd7e6f5e93860ec3ca1572aa664ac74e3a762533de2afdb2e511bdcd421f569956cf64839bdcd4c1eb8310393ce978d5ace5
SSDEEP 12288:t+ha8wFCAUMXI80AmHccEkAary7VCpGTNzLn2WZ61geUQmcZn5NHM4F9617dT9G:t+SCA1aAwcrYGqKLjZCge/Tsf
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet persistence rat trojan

Malware Config

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\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\UQIhC5L1M5JS06kM\\bLML4JzfwRG1.exe\",explorer.exe"	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe
2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe
Token: SeDebugPrivilege	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe
Token: SeIncreaseQuotaPrivilege	4356	vbc.exe
Token: SeSecurityPrivilege	4356	vbc.exe
Token: SeTakeOwnershipPrivilege	4356	vbc.exe
Token: SeLoadDriverPrivilege	4356	vbc.exe
Token: SeSystemProfilePrivilege	4356	vbc.exe
Token: SeSystemtimePrivilege	4356	vbc.exe
Token: SeProfSingleProcessPrivilege	4356	vbc.exe
Token: SeIncBasePriorityPrivilege	4356	vbc.exe
Token: SeCreatePagefilePrivilege	4356	vbc.exe
Token: SeBackupPrivilege	4356	vbc.exe
Token: SeRestorePrivilege	4356	vbc.exe
Token: SeShutdownPrivilege	4356	vbc.exe
Token: SeDebugPrivilege	4356	vbc.exe
Token: SeSystemEnvironmentPrivilege	4356	vbc.exe
Token: SeChangeNotifyPrivilege	4356	vbc.exe
Token: SeRemoteShutdownPrivilege	4356	vbc.exe
Token: SeUndockPrivilege	4356	vbc.exe
Token: SeManageVolumePrivilege	4356	vbc.exe
Token: SeImpersonatePrivilege	4356	vbc.exe
Token: SeCreateGlobalPrivilege	4356	vbc.exe
Token: 33	4356	vbc.exe
Token: 34	4356	vbc.exe
Token: 35	4356	vbc.exe
Token: 36	4356	vbc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85
PID 2512 wrote to memory of 4356	2512	6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe	85

C:\Users\Admin\AppData\Local\Temp\6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe
"C:\Users\Admin\AppData\Local\Temp\6470000322a2c5410fb9fb0520847dc90ad6627c4e29d0ca22531cc0ce94cf6b.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2512-132-0x00000000748D0000-0x0000000074E81000-memory.dmp

Download

memory/4356-134-0x0000000000400000-0x00000000004B1000-memory.dmp

Download

memory/4356-135-0x0000000000400000-0x00000000004B1000-memory.dmp

Download

memory/4356-136-0x0000000000400000-0x00000000004B1000-memory.dmp

Download

memory/4356-137-0x0000000000400000-0x00000000004B1000-memory.dmp

Download

memory/4356-138-0x0000000000400000-0x00000000004B1000-memory.dmp

Download