Overview

overview

10

Static

static

0745e9cd01...c3.exe

windows7_x64

10

0745e9cd01...c3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 04:41

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General

  • Target

    0745e9cd0163c4f34a5c96970dd8749ef654afa26303ef7fa276969d32fa12c3.exe

  • Size

    316KB

  • MD5

    1c2c524cd85d2d4738ffc0083a1fa9d0

  • SHA1

    1f81a3c437d472ca88f6148a04d509bc31884014

  • SHA256

    0745e9cd0163c4f34a5c96970dd8749ef654afa26303ef7fa276969d32fa12c3

  • SHA512

    c5295dd958c048ba30572591ff6c3bd1585be6d2948d3248b8b60611d93e3806d2d30c006418353ecf8ea2e3b5b65864846e57d9b5b3cdcb9354c8c8c480fe14

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

5686f6972756ec62e818c246da8a5f52

Attributes
  • reg_key

    5686f6972756ec62e818c246da8a5f52

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 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 33 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0745e9cd0163c4f34a5c96970dd8749ef654afa26303ef7fa276969d32fa12c3.exe
    "C:\Users\Admin\AppData\Local\Temp\0745e9cd0163c4f34a5c96970dd8749ef654afa26303ef7fa276969d32fa12c3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe
        "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"
        3⤵
        • 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:2452
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe" "taskhostw.exe" ENABLE
          4⤵
            PID:4400

    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

    Query Registry

    1
    T1012

    System Information Discovery

    2
    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\Local\Temp\Server.exe
      Filesize

      103KB

      MD5

      9d8f774c6da39b38d3792e9debe236a2

      SHA1

      b4253880f906e79ac21a7229f6d4520d9ee8e2c1

      SHA256

      a0a50e62f392df6e584f22078f365398a42a1a4e3a4dd414e2d5d442dc832125

      SHA512

      371ab42670905ea518bf015af6c5c178ca2d128efe4fb0167f99d54b472d4de2e1e069f5ca2ae4d70025ea04f0c6ae8e9eec848582790bc872713797a3c68a57

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

      103KB

      MD5

      9d8f774c6da39b38d3792e9debe236a2

      SHA1

      b4253880f906e79ac21a7229f6d4520d9ee8e2c1

      SHA256

      a0a50e62f392df6e584f22078f365398a42a1a4e3a4dd414e2d5d442dc832125

      SHA512

      371ab42670905ea518bf015af6c5c178ca2d128efe4fb0167f99d54b472d4de2e1e069f5ca2ae4d70025ea04f0c6ae8e9eec848582790bc872713797a3c68a57

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

      103KB

      MD5

      9d8f774c6da39b38d3792e9debe236a2

      SHA1

      b4253880f906e79ac21a7229f6d4520d9ee8e2c1

      SHA256

      a0a50e62f392df6e584f22078f365398a42a1a4e3a4dd414e2d5d442dc832125

      SHA512

      371ab42670905ea518bf015af6c5c178ca2d128efe4fb0167f99d54b472d4de2e1e069f5ca2ae4d70025ea04f0c6ae8e9eec848582790bc872713797a3c68a57

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

      103KB

      MD5

      9d8f774c6da39b38d3792e9debe236a2

      SHA1

      b4253880f906e79ac21a7229f6d4520d9ee8e2c1

      SHA256

      a0a50e62f392df6e584f22078f365398a42a1a4e3a4dd414e2d5d442dc832125

      SHA512

      371ab42670905ea518bf015af6c5c178ca2d128efe4fb0167f99d54b472d4de2e1e069f5ca2ae4d70025ea04f0c6ae8e9eec848582790bc872713797a3c68a57

      Download Submit
    • memory/2452-134-0x0000000000000000-mapping.dmp
      Download
    • memory/2452-137-0x00000000727F0000-0x0000000072DA1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/3048-130-0x0000000000000000-mapping.dmp
      Download
    • memory/3048-133-0x00000000727F0000-0x0000000072DA1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4400-138-0x0000000000000000-mapping.dmp
      Download