Overview

overview

10

Static

static

10

407db91b4d...cf.exe

windows7_x64

10

407db91b4d...cf.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:36

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General

  • Target

    407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf.exe

  • Size

    230KB

  • MD5

    6c38259b5ece98e227e7d5cd396fa3d0

  • SHA1

    c9a1fd4d5551494daa416bdeeb9117b49c89092f

  • SHA256

    407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf

  • SHA512

    82212ebcef256a93f7b16af9d0513d9fb3c26825682792e4e35e5bff7a5c8e0e90bd95f5a471aeb55b6df0e39c66b06b7c3f54efe372483d885c4a2d2d02afc6

Score
10/10
njratxuycocuevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

xuycocu

C2

xatabomsha1470.ddns.net:4646

Mutex

8b43d0ebdf1194096535a79e32c6e582

Attributes
  • reg_key

    8b43d0ebdf1194096535a79e32c6e582

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • 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
  • 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 21 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf.exe
    "C:\Users\Admin\AppData\Local\Temp\407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Users\Admin\AppData\Local\Temp\svhosts.exe
      "C:\Users\Admin\AppData\Local\Temp\svhosts.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:1120
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svhosts.exe" "svhosts.exe" ENABLE
        3⤵
          PID:1044

    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:\Users\Admin\AppData\Local\Temp\svhosts.exe
      Filesize

      230KB

      MD5

      6c38259b5ece98e227e7d5cd396fa3d0

      SHA1

      c9a1fd4d5551494daa416bdeeb9117b49c89092f

      SHA256

      407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf

      SHA512

      82212ebcef256a93f7b16af9d0513d9fb3c26825682792e4e35e5bff7a5c8e0e90bd95f5a471aeb55b6df0e39c66b06b7c3f54efe372483d885c4a2d2d02afc6

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\svhosts.exe
      Filesize

      230KB

      MD5

      6c38259b5ece98e227e7d5cd396fa3d0

      SHA1

      c9a1fd4d5551494daa416bdeeb9117b49c89092f

      SHA256

      407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf

      SHA512

      82212ebcef256a93f7b16af9d0513d9fb3c26825682792e4e35e5bff7a5c8e0e90bd95f5a471aeb55b6df0e39c66b06b7c3f54efe372483d885c4a2d2d02afc6

      Download Submit
    • \Users\Admin\AppData\Local\Temp\svhosts.exe
      Filesize

      230KB

      MD5

      6c38259b5ece98e227e7d5cd396fa3d0

      SHA1

      c9a1fd4d5551494daa416bdeeb9117b49c89092f

      SHA256

      407db91b4d0b0fb62de83a36f32641a7dd99517e09bce67794b472a930c760cf

      SHA512

      82212ebcef256a93f7b16af9d0513d9fb3c26825682792e4e35e5bff7a5c8e0e90bd95f5a471aeb55b6df0e39c66b06b7c3f54efe372483d885c4a2d2d02afc6

      Download Submit
    • memory/1044-62-0x0000000000000000-mapping.dmp
      Download
    • memory/1120-57-0x0000000000000000-mapping.dmp
      Download
    • memory/1120-61-0x0000000074B10000-0x00000000750BB000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/1260-54-0x00000000753C1000-0x00000000753C3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1260-55-0x0000000074B10000-0x00000000750BB000-memory.dmp
      Filesize

      5.7MB

      Download