Overview

overview

10

Static

static

10

a23360923a...ee.exe

windows7_x64

10

a23360923a...ee.exe

windows10_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    184s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08-10-2021 05:12

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General

  • Target

    a23360923a178f5fa03aa6bc07af76ee.exe

  • Size

    37KB

  • MD5

    a23360923a178f5fa03aa6bc07af76ee

  • SHA1

    55627fa47a75643c3072389be3dadf4b3346284d

  • SHA256

    6daefc6f282bc92111eca7dd24c20c236b209bd1d14d6290ac543c707d60df32

  • SHA512

    3d377b57f5b367e84223faff8225cab8083d2612e727ebe555df0eda8fabbdb8123e67ea421f7c04ed516af8a3a8d80e948e6f77ba9bf5cae4d8a1d8be19cf70

Score
10/10
njrathackedevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

0.tcp.ngrok.io:17560

Mutex

e2aebaa00665f100e890d032411c733f

Attributes
  • reg_key

    e2aebaa00665f100e890d032411c733f

  • 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
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • 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 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a23360923a178f5fa03aa6bc07af76ee.exe
    "C:\Users\Admin\AppData\Local\Temp\a23360923a178f5fa03aa6bc07af76ee.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Roaming\System.exe
      "C:\Users\Admin\AppData\Roaming\System.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
        3⤵
          PID:1528

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Replication Through Removable Media

    1
    T1091

    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

    Replication Through Removable Media

    1
    T1091

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\System.exe
      MD5

      a23360923a178f5fa03aa6bc07af76ee

      SHA1

      55627fa47a75643c3072389be3dadf4b3346284d

      SHA256

      6daefc6f282bc92111eca7dd24c20c236b209bd1d14d6290ac543c707d60df32

      SHA512

      3d377b57f5b367e84223faff8225cab8083d2612e727ebe555df0eda8fabbdb8123e67ea421f7c04ed516af8a3a8d80e948e6f77ba9bf5cae4d8a1d8be19cf70

      Download Submit
    • C:\Users\Admin\AppData\Roaming\System.exe
      MD5

      a23360923a178f5fa03aa6bc07af76ee

      SHA1

      55627fa47a75643c3072389be3dadf4b3346284d

      SHA256

      6daefc6f282bc92111eca7dd24c20c236b209bd1d14d6290ac543c707d60df32

      SHA512

      3d377b57f5b367e84223faff8225cab8083d2612e727ebe555df0eda8fabbdb8123e67ea421f7c04ed516af8a3a8d80e948e6f77ba9bf5cae4d8a1d8be19cf70

      Download Submit
    • \Users\Admin\AppData\Roaming\System.exe
      MD5

      a23360923a178f5fa03aa6bc07af76ee

      SHA1

      55627fa47a75643c3072389be3dadf4b3346284d

      SHA256

      6daefc6f282bc92111eca7dd24c20c236b209bd1d14d6290ac543c707d60df32

      SHA512

      3d377b57f5b367e84223faff8225cab8083d2612e727ebe555df0eda8fabbdb8123e67ea421f7c04ed516af8a3a8d80e948e6f77ba9bf5cae4d8a1d8be19cf70

      Download Submit
    • memory/1528-68-0x0000000000000000-mapping.dmp
      Download
    • memory/1652-60-0x0000000076641000-0x0000000076643000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1652-61-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1928-63-0x0000000000000000-mapping.dmp
      Download
    • memory/1928-67-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
      Filesize

      4KB

      Download