darkcomet | 7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 05:53

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General

Target

7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
Size

520KB
MD5

feb6bf93671559e74b626e8b88e80626
SHA1

effe88b5d988256431c78cf837f849952fd4b1ce
SHA256

7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697
SHA512

bef5f9fa450f30a62bdf04020ff3c9e05b8d87a5ea6740ba50d5bf869e3f6919a623c62ddc9d228fe22a0556cb0125e10da2045ff0330f53254990fac6e6ceef
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
Darkcomet family
darkcomet

Executes dropped EXE 3 IoCs

pid	Process
2164	winupd.exe
2760	winupd.exe
2908	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
2164	winupd.exe
2164	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-1-5-21-3551809350-4263495960-1443967649-1000\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 1724 set thread context of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 2164 set thread context of 2760	2164	winupd.exe	32
PID 2164 set thread context of 2908	2164	winupd.exe	33

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2908-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2908-98-0x0000000000400000-0x00000000004B7000-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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.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
2748	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2148	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2908	winupd.exe
Token: SeSecurityPrivilege	2908	winupd.exe
Token: SeTakeOwnershipPrivilege	2908	winupd.exe
Token: SeLoadDriverPrivilege	2908	winupd.exe
Token: SeSystemProfilePrivilege	2908	winupd.exe
Token: SeSystemtimePrivilege	2908	winupd.exe
Token: SeProfSingleProcessPrivilege	2908	winupd.exe
Token: SeIncBasePriorityPrivilege	2908	winupd.exe
Token: SeCreatePagefilePrivilege	2908	winupd.exe
Token: SeBackupPrivilege	2908	winupd.exe
Token: SeRestorePrivilege	2908	winupd.exe
Token: SeShutdownPrivilege	2908	winupd.exe
Token: SeDebugPrivilege	2908	winupd.exe
Token: SeSystemEnvironmentPrivilege	2908	winupd.exe
Token: SeChangeNotifyPrivilege	2908	winupd.exe
Token: SeRemoteShutdownPrivilege	2908	winupd.exe
Token: SeUndockPrivilege	2908	winupd.exe
Token: SeManageVolumePrivilege	2908	winupd.exe
Token: SeImpersonatePrivilege	2908	winupd.exe
Token: SeCreateGlobalPrivilege	2908	winupd.exe
Token: 33	2908	winupd.exe
Token: 34	2908	winupd.exe
Token: 35	2908	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
2164	winupd.exe
2760	winupd.exe
2908	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 1724 wrote to memory of 2536	1724	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	30
PID 2536 wrote to memory of 2164	2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	31
PID 2536 wrote to memory of 2164	2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	31
PID 2536 wrote to memory of 2164	2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	31
PID 2536 wrote to memory of 2164	2536	7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe	31
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2760	2164	winupd.exe	32
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2164 wrote to memory of 2908	2164	winupd.exe	33
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2760 wrote to memory of 2748	2760	winupd.exe	34
PID 2748 wrote to memory of 3064	2748	ipconfig.exe	36
PID 2748 wrote to memory of 3064	2748	ipconfig.exe	36
PID 2748 wrote to memory of 3064	2748	ipconfig.exe	36
PID 2748 wrote to memory of 3064	2748	ipconfig.exe	36
PID 3064 wrote to memory of 2148	3064	cmd.exe	38
PID 3064 wrote to memory of 2148	3064	cmd.exe	38
PID 3064 wrote to memory of 2148	3064	cmd.exe	38
PID 3064 wrote to memory of 2148	3064	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
"C:\Users\Admin\AppData\Local\Temp\7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe
  "C:\Users\Admin\AppData\Local\Temp\7122fdb607392a4805afb8271355b331718f642a06e8df5bc86ec8d2ad53b697.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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:2164
  - - 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:2760
    - - 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:2748
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\RKJRFEGB.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3064
        
        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:2148
  - - 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:2908

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\RKJRFEGB.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
6fd63bf84f066091cc6092ae96ef0080

SHA1
2ed16dda2bb8cc53593df15e10adb4ef2b2b55ea

SHA256
85de4070a03acd217d9f82fe0f506f068bd70687043ad5e8f62288b9df7cdd75

SHA512
309a28871d5d5ef1a76a3095d220b063f40868b8859065ef4aa576c74de4baa8da5bf19c78a4ecb97e1ccb9060f26cdb34e765b3e8e41362c9f4ab908773b9e6

Download Submit
memory/1724-82-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1724-14-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1724-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1724-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1724-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2164-62-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2164-46-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2164-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2536-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-67-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2536-13-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-3-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2748-71-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2760-81-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2908-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2908-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads