Overview

overview

10

Static

static

10

Avatar 2 (2022).exe

windows7_x64

10

Analysis

  • max time kernel
    1800s
  • max time network
    1624s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11-07-2022 14:04

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General

  • Target

    Avatar 2 (2022).exe

  • Size

    37KB

  • MD5

    4291ac32cc90795fee4a449b4ce933de

  • SHA1

    a598f8f511977041fb7d0454495100bd122a1d80

  • SHA256

    9262834e981a283001ee85c5d4c638bdefccb48650cc73e6cdb42dcd7d03debf

  • SHA512

    bc6fabebf55b25d0a0857752586c3cb573ee6ac91773759613c3e6174f3439f25be462604b6c8adc7bfc72a40d85659843ce87b5ef55f05b60222ee2bada0eb4

Score
10/10
njratлошокevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Лошок

C2

194.71.126.120:17954

Mutex

13d65a76848c880b980676c6c1cc6341

Attributes
  • reg_key

    13d65a76848c880b980676c6c1cc6341

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata
  • suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop)

    suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop)

    suricata
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Avatar 2 (2022).exe
    "C:\Users\Admin\AppData\Local\Temp\Avatar 2 (2022).exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\Dllhost.exe
      "C:\Windows\Dllhost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\Dllhost.exe" "Dllhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Windows\Dllhost.exe
    Filesize

    37KB

    MD5

    4291ac32cc90795fee4a449b4ce933de

    SHA1

    a598f8f511977041fb7d0454495100bd122a1d80

    SHA256

    9262834e981a283001ee85c5d4c638bdefccb48650cc73e6cdb42dcd7d03debf

    SHA512

    bc6fabebf55b25d0a0857752586c3cb573ee6ac91773759613c3e6174f3439f25be462604b6c8adc7bfc72a40d85659843ce87b5ef55f05b60222ee2bada0eb4

    Download Submit
  • C:\Windows\Dllhost.exe
    Filesize

    37KB

    MD5

    4291ac32cc90795fee4a449b4ce933de

    SHA1

    a598f8f511977041fb7d0454495100bd122a1d80

    SHA256

    9262834e981a283001ee85c5d4c638bdefccb48650cc73e6cdb42dcd7d03debf

    SHA512

    bc6fabebf55b25d0a0857752586c3cb573ee6ac91773759613c3e6174f3439f25be462604b6c8adc7bfc72a40d85659843ce87b5ef55f05b60222ee2bada0eb4

    Download Submit
  • memory/1268-56-0x0000000000000000-mapping.dmp
    Download
  • memory/1268-61-0x00000000742E0000-0x000000007488B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1268-64-0x00000000742E0000-0x000000007488B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1836-54-0x0000000075501000-0x0000000075503000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1836-55-0x00000000742E0000-0x000000007488B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1836-60-0x00000000742E0000-0x000000007488B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2040-62-0x0000000000000000-mapping.dmp
    Download