darkcomet | abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853

Analysis

max time kernel
119s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 17:57

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General

Target

abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Size

232KB
MD5

1b2eabfb75bacf704795c54342bc26d0
SHA1

85db70f05b562505fa9651e139bac846480b017b
SHA256

abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853
SHA512

8b9f0b9cf0fea4e9718f5a91fea1a00cf0f0fd1694ea1aff458a4f81ad72afed8d3347d56a59b4d3272e9820fece2ab6e8c8ca1e5e46f201de21ea3653ddcd78
SSDEEP

6144:tjFy93LU92VxOtVflFud4TnxcpPTASCmqMorHwM5pcoS:pFy9bPQZlFjrG0ZmYbwCpcoS

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

127.0.0.1:1604

Mutex

DCMIN_MUTEX-FMLL5L4

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
EsjrMG2QoybK
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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

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:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe

Executes dropped EXE 1 IoCs

pid	Process
2372	IMDCSC.exe

Loads dropped DLL 2 IoCs

pid	Process
904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/904-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x00030000000178b0-4.dat	upx
behavioral1/memory/2372-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2372-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2372-21-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2372-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeSecurityPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeTakeOwnershipPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeLoadDriverPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeSystemProfilePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeSystemtimePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeProfSingleProcessPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeIncBasePriorityPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeCreatePagefilePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeBackupPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeRestorePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeShutdownPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeDebugPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeSystemEnvironmentPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeChangeNotifyPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeRemoteShutdownPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeUndockPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeManageVolumePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeImpersonatePrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeCreateGlobalPrivilege	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: 33	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: 34	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: 35	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
Token: SeIncreaseQuotaPrivilege	2372	IMDCSC.exe
Token: SeSecurityPrivilege	2372	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	2372	IMDCSC.exe
Token: SeLoadDriverPrivilege	2372	IMDCSC.exe
Token: SeSystemProfilePrivilege	2372	IMDCSC.exe
Token: SeSystemtimePrivilege	2372	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	2372	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	2372	IMDCSC.exe
Token: SeCreatePagefilePrivilege	2372	IMDCSC.exe
Token: SeBackupPrivilege	2372	IMDCSC.exe
Token: SeRestorePrivilege	2372	IMDCSC.exe
Token: SeShutdownPrivilege	2372	IMDCSC.exe
Token: SeDebugPrivilege	2372	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	2372	IMDCSC.exe
Token: SeChangeNotifyPrivilege	2372	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	2372	IMDCSC.exe
Token: SeUndockPrivilege	2372	IMDCSC.exe
Token: SeManageVolumePrivilege	2372	IMDCSC.exe
Token: SeImpersonatePrivilege	2372	IMDCSC.exe
Token: SeCreateGlobalPrivilege	2372	IMDCSC.exe
Token: 33	2372	IMDCSC.exe
Token: 34	2372	IMDCSC.exe
Token: 35	2372	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2372	IMDCSC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 2372	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe	29
PID 904 wrote to memory of 2372	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe	29
PID 904 wrote to memory of 2372	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe	29
PID 904 wrote to memory of 2372	904	abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe	29

C:\Users\Admin\AppData\Local\Temp\abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe
"C:\Users\Admin\AppData\Local\Temp\abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853N.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:904
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2372

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
232KB

MD5
1b2eabfb75bacf704795c54342bc26d0

SHA1
85db70f05b562505fa9651e139bac846480b017b

SHA256
abf02c6295dc668aba4df299784588fe0d360f6f179305798d86a83cd3889853

SHA512
8b9f0b9cf0fea4e9718f5a91fea1a00cf0f0fd1694ea1aff458a4f81ad72afed8d3347d56a59b4d3272e9820fece2ab6e8c8ca1e5e46f201de21ea3653ddcd78

Download Submit
memory/904-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-1-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/904-10-0x0000000003280000-0x0000000003337000-memory.dmp

Filesize
732KB

Download
memory/904-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2372-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2372-13-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2372-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2372-21-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2372-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads