darkcomet | f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 16:38

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General

Target

f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
Size

520KB
MD5

fd70e2db35cfb4f56df1dd49f0846190
SHA1

3c398665ec66a57c213d82ffb53c41cc6574007c
SHA256

f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967
SHA512

edad6a9a96075f8eaf672373617876ae79911fb55ee311864e7556d4f12de038e0da879c91f37ecdff7e18db48e56ecec94d4c5c607b190d817c0746b452b217
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbF:f9fC3hh29Ya77A90aFtDfT5IMbF

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

pid	Process
272	winupd.exe
2812	winupd.exe
2948	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
272	winupd.exe
272	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-1-5-21-2872745919-2748461613-2989606286-1000\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 2596 set thread context of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 272 set thread context of 2812	272	winupd.exe	32
PID 272 set thread context of 2948	272	winupd.exe	33

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2948-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2948-98-0x0000000000400000-0x00000000004B7000-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	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.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
2248	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2180	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2948	winupd.exe
Token: SeSecurityPrivilege	2948	winupd.exe
Token: SeTakeOwnershipPrivilege	2948	winupd.exe
Token: SeLoadDriverPrivilege	2948	winupd.exe
Token: SeSystemProfilePrivilege	2948	winupd.exe
Token: SeSystemtimePrivilege	2948	winupd.exe
Token: SeProfSingleProcessPrivilege	2948	winupd.exe
Token: SeIncBasePriorityPrivilege	2948	winupd.exe
Token: SeCreatePagefilePrivilege	2948	winupd.exe
Token: SeBackupPrivilege	2948	winupd.exe
Token: SeRestorePrivilege	2948	winupd.exe
Token: SeShutdownPrivilege	2948	winupd.exe
Token: SeDebugPrivilege	2948	winupd.exe
Token: SeSystemEnvironmentPrivilege	2948	winupd.exe
Token: SeChangeNotifyPrivilege	2948	winupd.exe
Token: SeRemoteShutdownPrivilege	2948	winupd.exe
Token: SeUndockPrivilege	2948	winupd.exe
Token: SeManageVolumePrivilege	2948	winupd.exe
Token: SeImpersonatePrivilege	2948	winupd.exe
Token: SeCreateGlobalPrivilege	2948	winupd.exe
Token: 33	2948	winupd.exe
Token: 34	2948	winupd.exe
Token: 35	2948	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
272	winupd.exe
2812	winupd.exe
2948	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2596 wrote to memory of 2428	2596	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	30
PID 2428 wrote to memory of 272	2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	31
PID 2428 wrote to memory of 272	2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	31
PID 2428 wrote to memory of 272	2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	31
PID 2428 wrote to memory of 272	2428	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	31
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2812	272	winupd.exe	32
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 272 wrote to memory of 2948	272	winupd.exe	33
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2812 wrote to memory of 2248	2812	winupd.exe	34
PID 2248 wrote to memory of 2588	2248	ipconfig.exe	36
PID 2248 wrote to memory of 2588	2248	ipconfig.exe	36
PID 2248 wrote to memory of 2588	2248	ipconfig.exe	36
PID 2248 wrote to memory of 2588	2248	ipconfig.exe	36
PID 2588 wrote to memory of 2180	2588	cmd.exe	38
PID 2588 wrote to memory of 2180	2588	cmd.exe	38
PID 2588 wrote to memory of 2180	2588	cmd.exe	38
PID 2588 wrote to memory of 2180	2588	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
"C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
  "C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2428
- - 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:272
  - - 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:2812
    - - 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:2248
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\EAVOUMDN.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2588
        
        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:2180
  - - 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:2948

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\EAVOUMDN.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
13fc7937b1f44afa7004b4a0d409b0d9

SHA1
4d1c262ee776c350c336b9dfe06573be94d38875

SHA256
6d654211379580395ab1b5552b1502900b268b277f3dc157bc0b8d5533b18894

SHA512
10abf6dfbd666975f516611e61dc95f8ef67fcf3ca04208d8934a3e15ee38242431b9ed58dc03bba2ba45a23c96b24ae9d97ad55d680199731f37708eae7aac3

Download Submit
memory/272-64-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/272-36-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/272-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2248-71-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2428-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2428-18-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2428-67-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2428-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2428-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2428-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2596-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2596-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2596-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2596-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2812-82-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2948-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2948-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads