darkcomet | 671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1e

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 00:45

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General

Target

671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
Size

520KB
MD5

432115ab250f999b8c65e4893abbbcb0
SHA1

6932aab2652e45e7318dfd3da127717395990408
SHA256

671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1e
SHA512

7fd3a5860a69258b4022cc4205b5a875ddf8c792ae14d916bd20636cb0149a795f12bdc2fa43620f4f9aaeef86e1ca74d2529fb9f76a0ca3b0117e5678247a98
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
Darkcomet family
darkcomet

Executes dropped EXE 3 IoCs

pid	Process
2384	winupd.exe
1072	winupd.exe
2788	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
2384	winupd.exe
2384	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-1-5-21-4177215427-74451935-3209572229-1000\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 3000 set thread context of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 2384 set thread context of 1072	2384	winupd.exe	32
PID 2384 set thread context of 2788	2384	winupd.exe	33

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2788-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2788-93-0x0000000000400000-0x00000000004B7000-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	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	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.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

pid	Process
2816	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2656	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2788	winupd.exe
Token: SeSecurityPrivilege	2788	winupd.exe
Token: SeTakeOwnershipPrivilege	2788	winupd.exe
Token: SeLoadDriverPrivilege	2788	winupd.exe
Token: SeSystemProfilePrivilege	2788	winupd.exe
Token: SeSystemtimePrivilege	2788	winupd.exe
Token: SeProfSingleProcessPrivilege	2788	winupd.exe
Token: SeIncBasePriorityPrivilege	2788	winupd.exe
Token: SeCreatePagefilePrivilege	2788	winupd.exe
Token: SeBackupPrivilege	2788	winupd.exe
Token: SeRestorePrivilege	2788	winupd.exe
Token: SeShutdownPrivilege	2788	winupd.exe
Token: SeDebugPrivilege	2788	winupd.exe
Token: SeSystemEnvironmentPrivilege	2788	winupd.exe
Token: SeChangeNotifyPrivilege	2788	winupd.exe
Token: SeRemoteShutdownPrivilege	2788	winupd.exe
Token: SeUndockPrivilege	2788	winupd.exe
Token: SeManageVolumePrivilege	2788	winupd.exe
Token: SeImpersonatePrivilege	2788	winupd.exe
Token: SeCreateGlobalPrivilege	2788	winupd.exe
Token: 33	2788	winupd.exe
Token: 34	2788	winupd.exe
Token: 35	2788	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
2384	winupd.exe
1072	winupd.exe
2788	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3000 wrote to memory of 3056	3000	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	30
PID 3056 wrote to memory of 2384	3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	31
PID 3056 wrote to memory of 2384	3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	31
PID 3056 wrote to memory of 2384	3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	31
PID 3056 wrote to memory of 2384	3056	671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe	31
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 1072	2384	winupd.exe	32
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 1072 wrote to memory of 2816	1072	winupd.exe	34
PID 2384 wrote to memory of 2788	2384	winupd.exe	33
PID 2816 wrote to memory of 2544	2816	ipconfig.exe	36
PID 2816 wrote to memory of 2544	2816	ipconfig.exe	36
PID 2816 wrote to memory of 2544	2816	ipconfig.exe	36
PID 2816 wrote to memory of 2544	2816	ipconfig.exe	36
PID 2544 wrote to memory of 2656	2544	cmd.exe	38
PID 2544 wrote to memory of 2656	2544	cmd.exe	38
PID 2544 wrote to memory of 2656	2544	cmd.exe	38
PID 2544 wrote to memory of 2656	2544	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
"C:\Users\Admin\AppData\Local\Temp\671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe
  "C:\Users\Admin\AppData\Local\Temp\671aaaa3987ae62363072f9219417ebd913c76751ddd893b4e07940a90868d1eN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3056
- - 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:2384
  - - 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:1072
    - - 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:2816
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\BKYUCXNR.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2544
        
        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:2656
  - - 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:2788

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\BKYUCXNR.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
ecc4b5560f959794a130f42e46e3d3f7

SHA1
4c9912e4a1007e597e376e0d96bccce38057694b

SHA256
cc621e5d8b9429e075813275b9025c27eeb9dedd2d04556836520f348122fe9b

SHA512
0da4fa7b06c9fcb033bef7048a6e6102303dac9daab974162d60913d84221aafbcdf0b424655195f93eaa66c080f55ec90d05044d882df08f945ecde2acdd5b9

Download Submit
memory/1072-81-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2384-71-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-49-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2788-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2788-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2816-61-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/3000-24-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3000-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3000-21-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3000-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3000-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3056-75-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3056-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3056-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3056-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3056-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3056-14-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads