Overview

overview

10

Static

static

10

78769e4085...7e.zip

windows7_x64

1

78769e4085...7e.zip

windows10-2004_x64

malware-an...er.pdf

windows7_x64

1

malware-an...er.pdf

windows10-2004_x64

1

malware-an...is.pdf

windows7_x64

1

malware-an...is.pdf

windows10-2004_x64

1

malware-an...ypt.py

linux_amd64

malware-an...ypt.py

linux_armhf

malware-an...ypt.py

linux_mips

malware-an...ypt.py

linux_mipsel

malware-an...ons.py

windows7_x64

3

malware-an...ons.py

windows10-2004_x64

3

malware-an...is.pdf

windows7_x64

1

malware-an...is.pdf

windows10-2004_x64

malware-an...tt.ps1

windows7_x64

10

malware-an...tt.ps1

windows10-2004_x64

8

malware-an...tt.vbs

windows7_x64

malware-an...tt.vbs

windows10-2004_x64

7

malware-an...er.ps1

windows7_x64

1

malware-an...er.ps1

windows10-2004_x64

malware-an...od.ps1

windows7_x64

malware-an...od.ps1

windows10-2004_x64

10

malware-an...44.exe

windows7_x64

10

malware-an...44.exe

windows10-2004_x64

malware-an...55.dll

windows7_x64

1

malware-an...55.dll

windows10-2004_x64

malware-an...xes.py

linux_amd64

malware-an...xes.py

linux_armhf

malware-an...xes.py

linux_mips

malware-an...xes.py

linux_mipsel

malware-an...dra.py

windows7_x64

malware-an...dra.py

windows10-2004_x64

3

Analysis

  • max time kernel
    142s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:11

Sharing

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Report Analysis Logs

General

  • Target

    malware-analysis-writeups-master/bashar-bachir-chain/files/avastt.vbs

  • Size

    190B

  • MD5

    4d89cc370d80dcd3917b871eccdde4fb

  • SHA1

    797297f55fea4f9929aa15ac4ae66b6686a1f4f1

  • SHA256

    7b8c218ab9bbae5df94689e4abc735067b4a3034f854809c8e0b62f751bd0759

  • SHA512

    2283448d134b6fdae12b05be13e69c303544830343fa5640f6cbe03d75734aa96d9a2338877121a7605d4d6525523990c41104ee1a21e085703c694911579cf5

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\malware-analysis-writeups-master\bashar-bachir-chain\files\avastt.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3268
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windo 1 -noexit -exec bypass -file "C:\Users\Public\Nod.ps1"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:716

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/716-130-0x0000000000000000-mapping.dmp
    Download
  • memory/716-131-0x000002149AAA0000-0x000002149AAC2000-memory.dmp
    Filesize

    136KB

    Download
  • memory/716-132-0x00007FF8F2F10000-0x00007FF8F39D1000-memory.dmp
    Filesize

    10.8MB

    Download