darkcomet | 2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/01/2025, 21:11

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General

Target

2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
Size

520KB
MD5

5e0b2bc839de9893f2c78ecd5d53ab88
SHA1

588785a0d25f6a34e9fc1499364e10f9e0b83338
SHA256

2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492
SHA512

5b8556aaeaa8fb0c9626e546dc5f7a0b4f39a4e92b0973b4a896e0a595cf424a46d37024ccefed641c582d31ee448df95c77d07b2a2f52441d507f8ba3124a3d
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbq:f9fC3hh29Ya77A90aFtDfT5IMbq

Score

10^/10

darkcomet privateeye discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes

gencode
8GG5LVVGljSF
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Executes dropped EXE 3 IoCs

pid	Process
2696	winupd.exe
2716	winupd.exe
2732	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
2696	winupd.exe
2696	winupd.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2160 set thread context of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2696 set thread context of 2716	2696	winupd.exe	33
PID 2696 set thread context of 2732	2696	winupd.exe	34

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2732-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2732-99-0x0000000000400000-0x00000000004B7000-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 8 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	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2880	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1260	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2732	winupd.exe
Token: SeSecurityPrivilege	2732	winupd.exe
Token: SeTakeOwnershipPrivilege	2732	winupd.exe
Token: SeLoadDriverPrivilege	2732	winupd.exe
Token: SeSystemProfilePrivilege	2732	winupd.exe
Token: SeSystemtimePrivilege	2732	winupd.exe
Token: SeProfSingleProcessPrivilege	2732	winupd.exe
Token: SeIncBasePriorityPrivilege	2732	winupd.exe
Token: SeCreatePagefilePrivilege	2732	winupd.exe
Token: SeBackupPrivilege	2732	winupd.exe
Token: SeRestorePrivilege	2732	winupd.exe
Token: SeShutdownPrivilege	2732	winupd.exe
Token: SeDebugPrivilege	2732	winupd.exe
Token: SeSystemEnvironmentPrivilege	2732	winupd.exe
Token: SeChangeNotifyPrivilege	2732	winupd.exe
Token: SeRemoteShutdownPrivilege	2732	winupd.exe
Token: SeUndockPrivilege	2732	winupd.exe
Token: SeManageVolumePrivilege	2732	winupd.exe
Token: SeImpersonatePrivilege	2732	winupd.exe
Token: SeCreateGlobalPrivilege	2732	winupd.exe
Token: 33	2732	winupd.exe
Token: 34	2732	winupd.exe
Token: 35	2732	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
2696	winupd.exe
2716	winupd.exe
2732	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2160 wrote to memory of 2688	2160	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	31
PID 2688 wrote to memory of 2696	2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	32
PID 2688 wrote to memory of 2696	2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	32
PID 2688 wrote to memory of 2696	2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	32
PID 2688 wrote to memory of 2696	2688	2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe	32
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2716	2696	winupd.exe	33
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2696 wrote to memory of 2732	2696	winupd.exe	34
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2716 wrote to memory of 2880	2716	winupd.exe	35
PID 2880 wrote to memory of 1028	2880	ipconfig.exe	37
PID 2880 wrote to memory of 1028	2880	ipconfig.exe	37
PID 2880 wrote to memory of 1028	2880	ipconfig.exe	37
PID 2880 wrote to memory of 1028	2880	ipconfig.exe	37
PID 1028 wrote to memory of 1260	1028	cmd.exe	39
PID 1028 wrote to memory of 1260	1028	cmd.exe	39
PID 1028 wrote to memory of 1260	1028	cmd.exe	39
PID 1028 wrote to memory of 1260	1028	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
"C:\Users\Admin\AppData\Local\Temp\2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Users\Admin\AppData\Local\Temp\2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe
  "C:\Users\Admin\AppData\Local\Temp\2a1a8df37dbbac87d0cf4c9ab81e94562847ed60a688960a648fe16353bf0492.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2696
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2716
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Gathers network information
        Suspicious use of WriteProcessMemory
        
        PID:2880
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\JMYXBYUS.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1028
        
        C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
        7⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:1260
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\JMYXBYUS.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
4397fa29107d41d3a8d619e66a8d95ed

SHA1
3f6784ed002e21a678e15800a95ffa408b86f84c

SHA256
53970a2679dc23982e957dd6b3b6c803db9a77c562bb51239eaf5f66e5f85855

SHA512
7413f71bedf6fe79fddae25cf9b453dd6950a6e04e4249ebfb7794827d10b781c3d3b46312a060146cc42d4f79f9fa9002be63eef19705774815e2d4dcc36537

Download Submit
memory/2160-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2160-20-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2160-18-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2160-16-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2160-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2688-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2688-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2688-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2688-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-19-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2688-64-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2696-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2696-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2696-67-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2716-83-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2732-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-99-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2732-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2880-75-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads