darkcomet | 20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62e

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 07:52

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General

Target

20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
Size

520KB
MD5

70b16458e59c940f6acadbd53c5e0c10
SHA1

826647f23ca8ec802f6687f6d1140322f867610f
SHA256

20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62e
SHA512

8ea731fb6bc21c34dafd739231e88f342bc30beb4e8c62ca6040fcce138b17440d714d4d573a24cf00a4fe153b214394db5d10a6cf628ba0ccba34b3b1b1aeb9
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbx:f9fC3hh29Ya77A90aFtDfT5IMbx

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
2264	winupd.exe
1912	winupd.exe
1936	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
2264	winupd.exe
2264	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-1-5-21-1846800975-3917212583-2893086201-1000\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 2900 set thread context of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2264 set thread context of 1912	2264	winupd.exe	30
PID 2264 set thread context of 1936	2264	winupd.exe	31

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1936-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1936-94-0x0000000000400000-0x00000000004B7000-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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.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

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
752	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2500	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1936	winupd.exe
Token: SeSecurityPrivilege	1936	winupd.exe
Token: SeTakeOwnershipPrivilege	1936	winupd.exe
Token: SeLoadDriverPrivilege	1936	winupd.exe
Token: SeSystemProfilePrivilege	1936	winupd.exe
Token: SeSystemtimePrivilege	1936	winupd.exe
Token: SeProfSingleProcessPrivilege	1936	winupd.exe
Token: SeIncBasePriorityPrivilege	1936	winupd.exe
Token: SeCreatePagefilePrivilege	1936	winupd.exe
Token: SeBackupPrivilege	1936	winupd.exe
Token: SeRestorePrivilege	1936	winupd.exe
Token: SeShutdownPrivilege	1936	winupd.exe
Token: SeDebugPrivilege	1936	winupd.exe
Token: SeSystemEnvironmentPrivilege	1936	winupd.exe
Token: SeChangeNotifyPrivilege	1936	winupd.exe
Token: SeRemoteShutdownPrivilege	1936	winupd.exe
Token: SeUndockPrivilege	1936	winupd.exe
Token: SeManageVolumePrivilege	1936	winupd.exe
Token: SeImpersonatePrivilege	1936	winupd.exe
Token: SeCreateGlobalPrivilege	1936	winupd.exe
Token: 33	1936	winupd.exe
Token: 34	1936	winupd.exe
Token: 35	1936	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
2264	winupd.exe
1912	winupd.exe
1936	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 2900 wrote to memory of 3032	2900	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	28
PID 3032 wrote to memory of 2264	3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	29
PID 3032 wrote to memory of 2264	3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	29
PID 3032 wrote to memory of 2264	3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	29
PID 3032 wrote to memory of 2264	3032	20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe	29
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1912	2264	winupd.exe	30
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 2264 wrote to memory of 1936	2264	winupd.exe	31
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 1912 wrote to memory of 752	1912	winupd.exe	32
PID 752 wrote to memory of 2724	752	ipconfig.exe	34
PID 752 wrote to memory of 2724	752	ipconfig.exe	34
PID 752 wrote to memory of 2724	752	ipconfig.exe	34
PID 752 wrote to memory of 2724	752	ipconfig.exe	34
PID 2724 wrote to memory of 2500	2724	cmd.exe	36
PID 2724 wrote to memory of 2500	2724	cmd.exe	36
PID 2724 wrote to memory of 2500	2724	cmd.exe	36
PID 2724 wrote to memory of 2500	2724	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
"C:\Users\Admin\AppData\Local\Temp\20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.exe
  "C:\Users\Admin\AppData\Local\Temp\20057c4e74e6e3613608a7734ac561b367de340292a38cb2c363bc7adc96f62eN.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
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2264
  - - 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:1912
    - - 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:752
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\YRQAYMLN.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2724
        
        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:2500
  - - 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:1936

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\YRQAYMLN.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
12bd85f66df62d683ddd2e4ee4ceaac9

SHA1
ba78af0a05f42786f5e41503031acb12357b7692

SHA256
2efdc924ee594952f0071032bccabfd4cdb7340a1cd26eee7744c560513d81ac

SHA512
ca463704a5425704f5cb437184bd1ca1a16e441b14df8dcfc78d73c4359cd4c2170a18f50e995ee7902e83dd46aa29df4cf1a9ab83b60aaa3eb8d25807d0068e

Download Submit
memory/752-71-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1912-81-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1936-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1936-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2264-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2264-62-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2900-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2900-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2900-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2900-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2900-20-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

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

Filesize
4KB

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

Filesize
28KB

Download
memory/3032-14-0x0000000000400000-0x0000000000407000-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
memory/3032-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads