darkcomet | 1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22-10-2024 20:34

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General

Target

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
Size

520KB
MD5

ba49416551a9167e624a8edbfa630140
SHA1

1ba7883e87d8841dfb2fd33dfce3aa08f4ddcef2
SHA256

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630
SHA512

facf64b14db184efb38646d65431c993a0647790187c7fb218b434fee92afd0d3c5bec5e914272fd7920e52d8dea5e67586caae175a196345ceedfa68d905247
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb+:f9fC3hh29Ya77A90aFtDfT5IMb+

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

Executes dropped EXE 3 IoCs

Processes:

winupd.exewinupd.exewinupd.exe

pid	Process
2804	winupd.exe
2960	winupd.exe
2772	winupd.exe

Loads dropped DLL 4 IoCs

Processes:

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exewinupd.exe

pid	Process
2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
2804	winupd.exe
2804	winupd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exewinupd.exe

description	pid	Process	procid_target
PID 2528 set thread context of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2804 set thread context of 2960	2804	winupd.exe	31
PID 2804 set thread context of 2772	2804	winupd.exe	32

UPX packed file 22 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2772-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-97-0x0000000000400000-0x00000000004B7000-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

Processes:

winupd.exewinupd.exeipconfig.execmd.exereg.exe1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exewinupd.exe

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	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	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

Processes:

ipconfig.exe

pid	Process
2276	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
2352	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

winupd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2772	winupd.exe
Token: SeSecurityPrivilege	2772	winupd.exe
Token: SeTakeOwnershipPrivilege	2772	winupd.exe
Token: SeLoadDriverPrivilege	2772	winupd.exe
Token: SeSystemProfilePrivilege	2772	winupd.exe
Token: SeSystemtimePrivilege	2772	winupd.exe
Token: SeProfSingleProcessPrivilege	2772	winupd.exe
Token: SeIncBasePriorityPrivilege	2772	winupd.exe
Token: SeCreatePagefilePrivilege	2772	winupd.exe
Token: SeBackupPrivilege	2772	winupd.exe
Token: SeRestorePrivilege	2772	winupd.exe
Token: SeShutdownPrivilege	2772	winupd.exe
Token: SeDebugPrivilege	2772	winupd.exe
Token: SeSystemEnvironmentPrivilege	2772	winupd.exe
Token: SeChangeNotifyPrivilege	2772	winupd.exe
Token: SeRemoteShutdownPrivilege	2772	winupd.exe
Token: SeUndockPrivilege	2772	winupd.exe
Token: SeManageVolumePrivilege	2772	winupd.exe
Token: SeImpersonatePrivilege	2772	winupd.exe
Token: SeCreateGlobalPrivilege	2772	winupd.exe
Token: 33	2772	winupd.exe
Token: 34	2772	winupd.exe
Token: 35	2772	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exewinupd.exewinupd.exewinupd.exe

pid	Process
2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
2804	winupd.exe
2960	winupd.exe
2772	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exewinupd.exewinupd.exeipconfig.execmd.exe

description	pid	Process	procid_target
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2528 wrote to memory of 2312	2528	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	29
PID 2312 wrote to memory of 2804	2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	30
PID 2312 wrote to memory of 2804	2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	30
PID 2312 wrote to memory of 2804	2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	30
PID 2312 wrote to memory of 2804	2312	1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe	30
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2960	2804	winupd.exe	31
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2804 wrote to memory of 2772	2804	winupd.exe	32
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2960 wrote to memory of 2276	2960	winupd.exe	33
PID 2276 wrote to memory of 1040	2276	ipconfig.exe	35
PID 2276 wrote to memory of 1040	2276	ipconfig.exe	35
PID 2276 wrote to memory of 1040	2276	ipconfig.exe	35
PID 2276 wrote to memory of 1040	2276	ipconfig.exe	35
PID 1040 wrote to memory of 2352	1040	cmd.exe	37
PID 1040 wrote to memory of 2352	1040	cmd.exe	37
PID 1040 wrote to memory of 2352	1040	cmd.exe	37
PID 1040 wrote to memory of 2352	1040	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
"C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
  "C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2312
- - 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:2804
  - - 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:2960
    - - 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:2276
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\MPEXVEXN.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1040
        
        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:2352
  - - 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:2772

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\MPEXVEXN.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
cbba1a49dc548a73ab0d37a4fab1b6d3

SHA1
f183e96a97e809396b4fd24082fe8233c916ed57

SHA256
554192dbeaf99ebf210fa375ec97da61d36b6d5343f1248700fb06948ef0e292

SHA512
7fd209429a2baa301cd62d47a61bf7fb978e03a8649219fa887947b2d07ff2d9cefe1556c90b2ed072bc03870db3ac2ee140141a27290e8768f2e5c54dab60b0

Download Submit
memory/2276-75-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2312-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-15-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-22-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-64-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2312-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2528-12-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2528-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2528-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2528-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2528-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2772-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2804-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2804-85-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2804-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2804-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-61-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2960-84-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2960-80-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download