darkcomet | ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26/07/2024, 01:59

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General

Target

ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
Size

520KB
MD5

52f3a02cb8779115020aa2fc3003612e
SHA1

468c99973e19306990796160a4bf7c15c350b444
SHA256

ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d
SHA512

105923e318245f8dae916d8639303836a31e2baeaf2a7f1e04b46e6a978943b18189d59341510032f3eddd8629c545a5927590a5b9824f95b3773994f7390907
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbn:f9fC3hh29Ya77A90aFtDfT5IMbn

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
1600	winupd.exe
2276	winupd.exe
2904	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
1600	winupd.exe
1600	winupd.exe

UPX packed file 28 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2904-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2904-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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-1-5-21-3434294380-2554721341-1919518612-1000\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 2716 set thread context of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 1600 set thread context of 2276	1600	winupd.exe	32
PID 1600 set thread context of 2904	1600	winupd.exe	33

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	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.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
2752	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1668	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2904	winupd.exe
Token: SeSecurityPrivilege	2904	winupd.exe
Token: SeTakeOwnershipPrivilege	2904	winupd.exe
Token: SeLoadDriverPrivilege	2904	winupd.exe
Token: SeSystemProfilePrivilege	2904	winupd.exe
Token: SeSystemtimePrivilege	2904	winupd.exe
Token: SeProfSingleProcessPrivilege	2904	winupd.exe
Token: SeIncBasePriorityPrivilege	2904	winupd.exe
Token: SeCreatePagefilePrivilege	2904	winupd.exe
Token: SeBackupPrivilege	2904	winupd.exe
Token: SeRestorePrivilege	2904	winupd.exe
Token: SeShutdownPrivilege	2904	winupd.exe
Token: SeDebugPrivilege	2904	winupd.exe
Token: SeSystemEnvironmentPrivilege	2904	winupd.exe
Token: SeChangeNotifyPrivilege	2904	winupd.exe
Token: SeRemoteShutdownPrivilege	2904	winupd.exe
Token: SeUndockPrivilege	2904	winupd.exe
Token: SeManageVolumePrivilege	2904	winupd.exe
Token: SeImpersonatePrivilege	2904	winupd.exe
Token: SeCreateGlobalPrivilege	2904	winupd.exe
Token: 33	2904	winupd.exe
Token: 34	2904	winupd.exe
Token: 35	2904	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
1600	winupd.exe
2276	winupd.exe
2904	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 2716 wrote to memory of 3004	2716	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	30
PID 3004 wrote to memory of 1600	3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	31
PID 3004 wrote to memory of 1600	3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	31
PID 3004 wrote to memory of 1600	3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	31
PID 3004 wrote to memory of 1600	3004	ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe	31
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2276	1600	winupd.exe	32
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 1600 wrote to memory of 2904	1600	winupd.exe	33
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2276 wrote to memory of 2752	2276	winupd.exe	34
PID 2752 wrote to memory of 2676	2752	ipconfig.exe	36
PID 2752 wrote to memory of 2676	2752	ipconfig.exe	36
PID 2752 wrote to memory of 2676	2752	ipconfig.exe	36
PID 2752 wrote to memory of 2676	2752	ipconfig.exe	36
PID 2676 wrote to memory of 1668	2676	cmd.exe	38
PID 2676 wrote to memory of 1668	2676	cmd.exe	38
PID 2676 wrote to memory of 1668	2676	cmd.exe	38
PID 2676 wrote to memory of 1668	2676	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
"C:\Users\Admin\AppData\Local\Temp\ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe
  "C:\Users\Admin\AppData\Local\Temp\ad91d1c62b80062c1d59631ab6709d6151ced0bb5844902cabd8f162c278653d.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3004
- - 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:1600
  - - 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:2276
    - - 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:2752
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\VYOIAGNW.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2676
        
        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:1668
  - - 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:2904

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\VYOIAGNW.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
8e55c1e15631e336186341c91da079ca

SHA1
0f0ccc6e268fb7f3c53632d030824c6e3ccb6b8c

SHA256
bed2809f07c55bc106f74656693b4d807411b0294451fd829e75f69af4a035ca

SHA512
1efce0f7c89d2d371a734c03c795bf360e88cd495feebf888e63a5c3642e8bc3b264ddde0a1e162fcdca4fe5a387da85bb6e23d46ca442216243639699a5e0ec

Download Submit
memory/1600-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1600-63-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2276-80-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2716-13-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2716-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2716-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2716-14-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2752-71-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2904-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2904-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3004-12-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3004-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3004-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3004-62-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3004-2-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads