darkcomet | 3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 00:01

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General

Target

3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
Size

520KB
MD5

5b7b75ede2d95831c1c305ca4c4d3520
SHA1

e2c745d66b03313fb37f06bfe736a4278ad3cb13
SHA256

3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86
SHA512

19a9ef38f443c7ba507fd4269e8d72a40927ee95a27fd254ee1fb6531df54b91e55c14a11ca6edb9145f0a37c36282a4c1c680246ad4a385c1138a57a4c3858f
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbC:f9fC3hh29Ya77A90aFtDfT5IMbC

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
2176	winupd.exe
2440	winupd.exe
2616	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.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 1596 set thread context of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 2176 set thread context of 2440	2176	winupd.exe	30
PID 2176 set thread context of 2616	2176	winupd.exe	31

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2616-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2616-97-0x0000000000400000-0x00000000004B7000-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	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	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.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
2384	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1008	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2616	winupd.exe
Token: SeSecurityPrivilege	2616	winupd.exe
Token: SeTakeOwnershipPrivilege	2616	winupd.exe
Token: SeLoadDriverPrivilege	2616	winupd.exe
Token: SeSystemProfilePrivilege	2616	winupd.exe
Token: SeSystemtimePrivilege	2616	winupd.exe
Token: SeProfSingleProcessPrivilege	2616	winupd.exe
Token: SeIncBasePriorityPrivilege	2616	winupd.exe
Token: SeCreatePagefilePrivilege	2616	winupd.exe
Token: SeBackupPrivilege	2616	winupd.exe
Token: SeRestorePrivilege	2616	winupd.exe
Token: SeShutdownPrivilege	2616	winupd.exe
Token: SeDebugPrivilege	2616	winupd.exe
Token: SeSystemEnvironmentPrivilege	2616	winupd.exe
Token: SeChangeNotifyPrivilege	2616	winupd.exe
Token: SeRemoteShutdownPrivilege	2616	winupd.exe
Token: SeUndockPrivilege	2616	winupd.exe
Token: SeManageVolumePrivilege	2616	winupd.exe
Token: SeImpersonatePrivilege	2616	winupd.exe
Token: SeCreateGlobalPrivilege	2616	winupd.exe
Token: 33	2616	winupd.exe
Token: 34	2616	winupd.exe
Token: 35	2616	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
2176	winupd.exe
2440	winupd.exe
2616	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 1596 wrote to memory of 2024	1596	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	28
PID 2024 wrote to memory of 2176	2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	29
PID 2024 wrote to memory of 2176	2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	29
PID 2024 wrote to memory of 2176	2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	29
PID 2024 wrote to memory of 2176	2024	3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe	29
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2440	2176	winupd.exe	30
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2176 wrote to memory of 2616	2176	winupd.exe	31
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2440 wrote to memory of 2384	2440	winupd.exe	32
PID 2384 wrote to memory of 2560	2384	ipconfig.exe	34
PID 2384 wrote to memory of 2560	2384	ipconfig.exe	34
PID 2384 wrote to memory of 2560	2384	ipconfig.exe	34
PID 2384 wrote to memory of 2560	2384	ipconfig.exe	34
PID 2560 wrote to memory of 1008	2560	cmd.exe	36
PID 2560 wrote to memory of 1008	2560	cmd.exe	36
PID 2560 wrote to memory of 1008	2560	cmd.exe	36
PID 2560 wrote to memory of 1008	2560	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
"C:\Users\Admin\AppData\Local\Temp\3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe
  "C:\Users\Admin\AppData\Local\Temp\3f129fa0acb200fa9578a6051845fa2375a67235fb9111371e3021fb047ebc86N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2024
- - 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:2176
  - - 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:2440
    - - 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:2384
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\HVRTXVYJ.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2560
        
        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:1008
  - - 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:2616

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\HVRTXVYJ.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
60e0b1d7bd6a20535d32b61245c6c35b

SHA1
52f59660cba5b86a113f39cd13d46573e043f3ca

SHA256
68ff78b5a54968f615fa00d2898ef1bfb31045d8dfb5fc83518e1934ae9365c6

SHA512
5050fb78edc3375ef7dfdf568de507da8db0dfacb368e6e517e475e69aba49289e263ce8e8d9574fac1b009e62aa7346e754c3e361e9455e3d9d01ff269faa27

Download Submit
memory/1596-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1596-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1596-18-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1596-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2024-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2024-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2024-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2024-66-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2024-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2176-63-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2176-47-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2176-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-77-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2440-82-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2616-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2616-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads