vkeylogger | 7004285faaa3caabec19f6382f86f380da6fbe1eb5d624a7bc2a9e999a5ba79d

General

Target

9e559c854f7b4c66ffbe7702e8f49cd0.exe
Size

154KB
MD5

9e559c854f7b4c66ffbe7702e8f49cd0
SHA1

cd28198ef48a50b3d14dc8eb5d37f505b2c85c33
SHA256

7004285faaa3caabec19f6382f86f380da6fbe1eb5d624a7bc2a9e999a5ba79d
SHA512

c2c751b71a3b7a2bcade9d59b7071ee4af5f239be4fd2075fb2a4d6bfa23ca1edde4083f0a0aafb578bc1161e5ec5b34587f2596b20309d9541c35df67585e89

Score

10^/10

vkeylogger keylogger persistence stealer

Malware Config

Signatures

VKeylogger
A keylogger first seen in Nov 2020.
stealer keylogger vkeylogger

VKeylogger Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1608-60-0x0000000000020000-0x000000000002E000-memory.dmp	family_vkeylogger
behavioral1/memory/1608-61-0x0000000000400000-0x0000000002144000-memory.dmp	family_vkeylogger
behavioral1/memory/1848-66-0x0000000000080000-0x000000000008F000-memory.dmp	family_vkeylogger

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1788	133.exe
1864	6E0302BCB0101291311131.exe

Loads dropped DLL 4 IoCs

pid	Process
1848	explorer.exe
1848	explorer.exe
1848	explorer.exe
1848	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Windows\\system32\\mshta.exe javascript:x=new%20ActiveXObject(\"wscript.shell\");v=x.RegRead(\"HKCU\\\\Software\\\\Microsoft\\\\SMSvcHost\\\\ComponentID\");eval(v);"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Nfnur = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9e559c854f7b4c66ffbe7702e8f49cd0.exe"	explorer.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\0Ep9c\qx5ow97Y	6E0302BCB0101291311131.exe
File created	C:\Windows\SysWOW64\knRwIY3Bz\5LqlvOPDt1v\iS6oc	6E0302BCB0101291311131.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 1848	1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1432	schtasks.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe
1848	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1848	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1848	explorer.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1848	1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe	29
PID 1608 wrote to memory of 1848	1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe	29
PID 1608 wrote to memory of 1848	1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe	29
PID 1608 wrote to memory of 1848	1608	9e559c854f7b4c66ffbe7702e8f49cd0.exe	29
PID 1848 wrote to memory of 1788	1848	explorer.exe	32
PID 1848 wrote to memory of 1788	1848	explorer.exe	32
PID 1848 wrote to memory of 1788	1848	explorer.exe	32
PID 1848 wrote to memory of 1788	1848	explorer.exe	32
PID 1788 wrote to memory of 976	1788	133.exe	33
PID 1788 wrote to memory of 976	1788	133.exe	33
PID 1788 wrote to memory of 976	1788	133.exe	33
PID 1788 wrote to memory of 976	1788	133.exe	33
PID 976 wrote to memory of 1432	976	cmd.exe	35
PID 976 wrote to memory of 1432	976	cmd.exe	35
PID 976 wrote to memory of 1432	976	cmd.exe	35
PID 976 wrote to memory of 1432	976	cmd.exe	35
PID 2016 wrote to memory of 1864	2016	taskeng.exe	38
PID 2016 wrote to memory of 1864	2016	taskeng.exe	38
PID 2016 wrote to memory of 1864	2016	taskeng.exe	38
PID 2016 wrote to memory of 1864	2016	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\9e559c854f7b4c66ffbe7702e8f49cd0.exe
"C:\Users\Admin\AppData\Local\Temp\9e559c854f7b4c66ffbe7702e8f49cd0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1848
- - C:\Users\Admin\AppData\Local\Temp\133.exe
    "C:\Users\Admin\AppData\Local\Temp\133.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /tn \6E0302BCB0101291311131 /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\6E0302BCB0101291311131\6E0302BCB0101291311131.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:976
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn \6E0302BCB0101291311131 /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\6E0302BCB0101291311131\6E0302BCB0101291311131.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
        5⤵
        Creates scheduled task(s)
        
        PID:1432

C:\Windows\system32\taskeng.exe
taskeng.exe {2D328B8F-FB7D-404D-AFC3-2248255F6BA2} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\6E0302BCB0101291311131\6E0302BCB0101291311131.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Windows\6E0302BCB0101291311131\6E0302BCB0101291311131.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:1864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1608-61-0x0000000000400000-0x0000000002144000-memory.dmp

Filesize
29.3MB

Download
memory/1608-62-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/1608-60-0x0000000000020000-0x000000000002E000-memory.dmp

Filesize
56KB

Download
memory/1788-77-0x0000000000980000-0x0000000000982000-memory.dmp

Filesize
8KB

Download
memory/1788-78-0x0000000000B50000-0x0000000000B63000-memory.dmp

Filesize
76KB

Download
memory/1848-66-0x0000000000080000-0x000000000008F000-memory.dmp

Filesize
60KB

Download
memory/1848-65-0x0000000074581000-0x0000000074583000-memory.dmp

Filesize
8KB

Download
memory/1864-82-0x00000000008C0000-0x00000000008C2000-memory.dmp

Filesize
8KB

Download
memory/1864-83-0x0000000000E80000-0x0000000000E93000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads