547294e9d1cd43c6d8582d62813c7aa26b81ef8affe7d16f3657a4ae202af1b1

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
16-12-2022 14:31

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General

Target

license.lnk
Size

1KB
MD5

377afef57fefdb218447d638af7d4100
SHA1

0e8aec41d862caaebda8e9ce6db0c240bd3fc37b
SHA256

20913c758b88611778b28a5eada7bf762b56f20de8b687886968aad9f12e6129
SHA512

f327fcd9d64094fe23bf7f28ec176e07d24eba2d9140ff321ba2343c6ce5761b9de5522d117a2a5c82096966fc4319d9034da7457a6b7a81260a63f320f483a7

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1332	kyR1JyHYpWnDvn.exe

Loads dropped DLL 1 IoCs

pid	Process
1388	cmd.exe

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
1992	schtasks.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1052	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1052	taskkill.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 1388	1088	cmd.exe	29
PID 1088 wrote to memory of 1388	1088	cmd.exe	29
PID 1088 wrote to memory of 1388	1088	cmd.exe	29
PID 1388 wrote to memory of 1764	1388	cmd.exe	30
PID 1388 wrote to memory of 1764	1388	cmd.exe	30
PID 1388 wrote to memory of 1764	1388	cmd.exe	30
PID 1388 wrote to memory of 584	1388	cmd.exe	31
PID 1388 wrote to memory of 584	1388	cmd.exe	31
PID 1388 wrote to memory of 584	1388	cmd.exe	31
PID 1388 wrote to memory of 1332	1388	cmd.exe	32
PID 1388 wrote to memory of 1332	1388	cmd.exe	32
PID 1388 wrote to memory of 1332	1388	cmd.exe	32
PID 1388 wrote to memory of 1992	1388	cmd.exe	33
PID 1388 wrote to memory of 1992	1388	cmd.exe	33
PID 1388 wrote to memory of 1992	1388	cmd.exe	33
PID 1388 wrote to memory of 1052	1388	cmd.exe	34
PID 1388 wrote to memory of 1052	1388	cmd.exe	34
PID 1388 wrote to memory of 1052	1388	cmd.exe	34

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\license.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c forum_old.bat
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1388
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K copy /y /b C:\Windows\System32\rundll32.exe C:\ProgramData\kyR1JyHYpWnDvn.exe
    3⤵
    PID:1764
- - C:\Windows\system32\xcopy.exe
    xcopy /h /y devx_foot2.dll C:\ProgramData
    3⤵
    PID:584
- - C:\ProgramData\kyR1JyHYpWnDvn.exe
    C:\ProgramData\kyR1JyHYpWnDvn.exe C:\ProgramData\devx_foot2.dll,CurkpvWin
    3⤵
    - Executes dropped EXE
    PID:1332
- - C:\Windows\system32\schtasks.exe
    SCHTASKS /create /tn "DesktopViewer" /f /tr "cmd.exe /c C:\programdata\kyR1JyHYpWnDvn.exe C:\programdata\devx_foot2.dll,CurkpvWin" /sc hourly /mo 1 /sd 01/01/2022 /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:1992
- - C:\Windows\system32\taskkill.exe
    taskkill /F /im cmd.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\kyR1JyHYpWnDvn.exe

Filesize
44KB

MD5
dd81d91ff3b0763c392422865c9ac12e

SHA1
963b55acc8c566876364716d5aafa353995812a8

SHA256
f5691b8f200e3196e6808e932630e862f8f26f31cd949981373f23c9d87db8b9

SHA512
8a5036ccab9c9e71deb4ecb9598528ca19c2d697a836846d23e1547b24172fa236a798092c7db676929abff830e40f52ce8f3b3bdd8d4c2553d7c021fceaf120

Download Submit
\ProgramData\kyR1JyHYpWnDvn.exe

Filesize
44KB

MD5
dd81d91ff3b0763c392422865c9ac12e

SHA1
963b55acc8c566876364716d5aafa353995812a8

SHA256
f5691b8f200e3196e6808e932630e862f8f26f31cd949981373f23c9d87db8b9

SHA512
8a5036ccab9c9e71deb4ecb9598528ca19c2d697a836846d23e1547b24172fa236a798092c7db676929abff830e40f52ce8f3b3bdd8d4c2553d7c021fceaf120

Download Submit
memory/1088-54-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

Filesize
8KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads