darkcomet | 45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdc

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 01:10

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General

Target

45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
Size

520KB
MD5

c58745533bb498e3d4fed83625820cb0
SHA1

a06472f971ff3dc5b7181c9ff084039cd83d76ec
SHA256

45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdc
SHA512

23d274ec8b2ba05e4c735a8638ad66f6d8726413f4f58fa1ac37782c7dca07ef69be2661be41868d8dc447366aacbb37d63ff71c54f7eae86a82c3339ea27f39
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb4:f9fC3hh29Ya77A90aFtDfT5IMb4

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
2776	winupd.exe
2432	winupd.exe
2872	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.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-1-5-21-1488793075-819845221-1497111674-1000\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 3028 set thread context of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 2776 set thread context of 2432	2776	winupd.exe	32
PID 2776 set thread context of 2872	2776	winupd.exe	33

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2872-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2872-93-0x0000000000400000-0x00000000004B7000-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	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.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
2680	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3000	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2872	winupd.exe
Token: SeSecurityPrivilege	2872	winupd.exe
Token: SeTakeOwnershipPrivilege	2872	winupd.exe
Token: SeLoadDriverPrivilege	2872	winupd.exe
Token: SeSystemProfilePrivilege	2872	winupd.exe
Token: SeSystemtimePrivilege	2872	winupd.exe
Token: SeProfSingleProcessPrivilege	2872	winupd.exe
Token: SeIncBasePriorityPrivilege	2872	winupd.exe
Token: SeCreatePagefilePrivilege	2872	winupd.exe
Token: SeBackupPrivilege	2872	winupd.exe
Token: SeRestorePrivilege	2872	winupd.exe
Token: SeShutdownPrivilege	2872	winupd.exe
Token: SeDebugPrivilege	2872	winupd.exe
Token: SeSystemEnvironmentPrivilege	2872	winupd.exe
Token: SeChangeNotifyPrivilege	2872	winupd.exe
Token: SeRemoteShutdownPrivilege	2872	winupd.exe
Token: SeUndockPrivilege	2872	winupd.exe
Token: SeManageVolumePrivilege	2872	winupd.exe
Token: SeImpersonatePrivilege	2872	winupd.exe
Token: SeCreateGlobalPrivilege	2872	winupd.exe
Token: 33	2872	winupd.exe
Token: 34	2872	winupd.exe
Token: 35	2872	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
2776	winupd.exe
2432	winupd.exe
2872	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3028 wrote to memory of 3032	3028	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	30
PID 3032 wrote to memory of 2776	3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	31
PID 3032 wrote to memory of 2776	3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	31
PID 3032 wrote to memory of 2776	3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	31
PID 3032 wrote to memory of 2776	3032	45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe	31
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2432	2776	winupd.exe	32
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2776 wrote to memory of 2872	2776	winupd.exe	33
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2432 wrote to memory of 2680	2432	winupd.exe	34
PID 2680 wrote to memory of 2396	2680	ipconfig.exe	36
PID 2680 wrote to memory of 2396	2680	ipconfig.exe	36
PID 2680 wrote to memory of 2396	2680	ipconfig.exe	36
PID 2680 wrote to memory of 2396	2680	ipconfig.exe	36
PID 2396 wrote to memory of 3000	2396	cmd.exe	38
PID 2396 wrote to memory of 3000	2396	cmd.exe	38
PID 2396 wrote to memory of 3000	2396	cmd.exe	38
PID 2396 wrote to memory of 3000	2396	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
"C:\Users\Admin\AppData\Local\Temp\45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe
  "C:\Users\Admin\AppData\Local\Temp\45b413788443c5c29fa33b9f076f3a77f766e5c847bd8bae1b19730ee122ebdcN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2776
  - - 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:2432
    - - 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:2680
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\TWLFELUK.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2396
        
        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:3000
  - - 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:2872

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\TWLFELUK.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
2bb717cd01cc953889f4b39ba6a6877c

SHA1
03c4a0d06cdfef9352f3ba09524e2250aef5ae9d

SHA256
465cd3ff15a417fc9133b3f1b47388b2b0ffea151112599f5a600ccb73b8bcf7

SHA512
546ccfb39f2c349d928a74156add7789b0d884e14ccc1be65e5c6bf8c620d24c53203dcb06e1ecba8eaa8c69eda1ce4b68e4e1a1b1baf5733dab55854fb72178

Download Submit
memory/2432-80-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2680-70-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2776-61-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2776-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2776-46-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2872-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2872-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3028-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3028-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3028-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3028-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3028-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3032-14-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3032-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3032-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3032-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3032-66-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3032-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads