darkcomet | da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 02:28

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General

Target

da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
Size

520KB
MD5

a266f8d1087fdb7528c2c62a998be548
SHA1

e4e313389b5ab5b452f5d7cd7c67a5aade214f4d
SHA256

da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54
SHA512

9832baeeb05a537a9778681d22c7e2f897081510cdc94a2b1c96ae1fa4d6d7c89f22f92b86c4c43dd2d74de28cf9789f8caeafa15fdd9bf515e7beeb48bc7e65
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbJ:f9fC3hh29Ya77A90aFtDfT5IMbJ

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
2892	winupd.exe
2160	winupd.exe
2924	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
2892	winupd.exe
2892	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-1-5-21-2039016743-699959520-214465309-1000\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 2296 set thread context of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2892 set thread context of 2160	2892	winupd.exe	30
PID 2892 set thread context of 2924	2892	winupd.exe	31

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2924-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2924-95-0x0000000000400000-0x00000000004B7000-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	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.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
1828	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1116	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2924	winupd.exe
Token: SeSecurityPrivilege	2924	winupd.exe
Token: SeTakeOwnershipPrivilege	2924	winupd.exe
Token: SeLoadDriverPrivilege	2924	winupd.exe
Token: SeSystemProfilePrivilege	2924	winupd.exe
Token: SeSystemtimePrivilege	2924	winupd.exe
Token: SeProfSingleProcessPrivilege	2924	winupd.exe
Token: SeIncBasePriorityPrivilege	2924	winupd.exe
Token: SeCreatePagefilePrivilege	2924	winupd.exe
Token: SeBackupPrivilege	2924	winupd.exe
Token: SeRestorePrivilege	2924	winupd.exe
Token: SeShutdownPrivilege	2924	winupd.exe
Token: SeDebugPrivilege	2924	winupd.exe
Token: SeSystemEnvironmentPrivilege	2924	winupd.exe
Token: SeChangeNotifyPrivilege	2924	winupd.exe
Token: SeRemoteShutdownPrivilege	2924	winupd.exe
Token: SeUndockPrivilege	2924	winupd.exe
Token: SeManageVolumePrivilege	2924	winupd.exe
Token: SeImpersonatePrivilege	2924	winupd.exe
Token: SeCreateGlobalPrivilege	2924	winupd.exe
Token: 33	2924	winupd.exe
Token: 34	2924	winupd.exe
Token: 35	2924	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
2892	winupd.exe
2160	winupd.exe
2924	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2296 wrote to memory of 2908	2296	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	28
PID 2908 wrote to memory of 2892	2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	29
PID 2908 wrote to memory of 2892	2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	29
PID 2908 wrote to memory of 2892	2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	29
PID 2908 wrote to memory of 2892	2908	da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe	29
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2160	2892	winupd.exe	30
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2892 wrote to memory of 2924	2892	winupd.exe	31
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 2160 wrote to memory of 1828	2160	winupd.exe	32
PID 1828 wrote to memory of 992	1828	ipconfig.exe	34
PID 1828 wrote to memory of 992	1828	ipconfig.exe	34
PID 1828 wrote to memory of 992	1828	ipconfig.exe	34
PID 1828 wrote to memory of 992	1828	ipconfig.exe	34
PID 992 wrote to memory of 1116	992	cmd.exe	36
PID 992 wrote to memory of 1116	992	cmd.exe	36
PID 992 wrote to memory of 1116	992	cmd.exe	36
PID 992 wrote to memory of 1116	992	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
"C:\Users\Admin\AppData\Local\Temp\da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe
  "C:\Users\Admin\AppData\Local\Temp\da8b7400c560ffa402c051d820c245fe60922a49a3edb6db52a2a99112d46e54.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2908
- - 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:2892
  - - 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:2160
    - - 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:1828
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\GPYHDRVH.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:992
        
        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:1116
  - - 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:2924

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

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Downloads

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

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
12a27512adccdde6900891fe8452ee1b

SHA1
74cc0de5516080c51859de987269cc5a0e6b57d7

SHA256
c943171dd92cf32343c0183777331dfa0007d1389066d7446845c7a08ee03d4f

SHA512
86612cf08913edf5aaed8b48d9e498d98ac7a624ff4ee155c679fe08585ed0e67e8e1dd1e605e42cbcb556bdea70df35e3d26e78ea2c123a8506873d106b4d39

Download Submit
memory/1828-71-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2160-82-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2296-20-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2296-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2296-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2296-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2296-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2892-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2892-44-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2892-59-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2908-15-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2908-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2908-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2908-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2908-9-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2908-67-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2924-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2924-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads