Overview

overview

10

Static

static

7d957137a9...b4.exe

windows7_x64

10

7d957137a9...b4.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-12-2020 15:16

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General

  • Target

    7d957137a986dbf26cc9c85c91866bb4.exe

  • Size

    32KB

  • MD5

    7d957137a986dbf26cc9c85c91866bb4

  • SHA1

    96cbe649b3169f112942b5036fdcb8bb09f7c2cb

  • SHA256

    79184fa4b73d0e4153aa508e67d6039ec3b8064472a9a3ecec0c4d1b60a5c933

  • SHA512

    84ece8184a107d450d8a006fcc51e67a9c8b32f6befaa40ee736fe1a5a7e5b3d5629f9224e833767c996dc3e9c94c1e28d309ba12f3f6de8008211f42ad165c2

Score
10/10
njratjokev1evasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Botnet

JokeV1

Mutex

edcf768fd0fc7c8187a270d89e03b98e

Attributes
  • reg_key

    edcf768fd0fc7c8187a270d89e03b98e

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 use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d957137a986dbf26cc9c85c91866bb4.exe
    "C:\Users\Admin\AppData\Local\Temp\7d957137a986dbf26cc9c85c91866bb4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Roaming\JokeV1.exe
      "C:\Users\Admin\AppData\Roaming\JokeV1.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\JokeV1.exe" "JokeV1.exe" ENABLE
        3⤵
          PID:1744

    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\Roaming\JokeV1.exe
      MD5

      7d957137a986dbf26cc9c85c91866bb4

      SHA1

      96cbe649b3169f112942b5036fdcb8bb09f7c2cb

      SHA256

      79184fa4b73d0e4153aa508e67d6039ec3b8064472a9a3ecec0c4d1b60a5c933

      SHA512

      84ece8184a107d450d8a006fcc51e67a9c8b32f6befaa40ee736fe1a5a7e5b3d5629f9224e833767c996dc3e9c94c1e28d309ba12f3f6de8008211f42ad165c2

      Download Submit
    • C:\Users\Admin\AppData\Roaming\JokeV1.exe
      MD5

      7d957137a986dbf26cc9c85c91866bb4

      SHA1

      96cbe649b3169f112942b5036fdcb8bb09f7c2cb

      SHA256

      79184fa4b73d0e4153aa508e67d6039ec3b8064472a9a3ecec0c4d1b60a5c933

      SHA512

      84ece8184a107d450d8a006fcc51e67a9c8b32f6befaa40ee736fe1a5a7e5b3d5629f9224e833767c996dc3e9c94c1e28d309ba12f3f6de8008211f42ad165c2

      Download Submit
    • \Users\Admin\AppData\Roaming\JokeV1.exe
      MD5

      7d957137a986dbf26cc9c85c91866bb4

      SHA1

      96cbe649b3169f112942b5036fdcb8bb09f7c2cb

      SHA256

      79184fa4b73d0e4153aa508e67d6039ec3b8064472a9a3ecec0c4d1b60a5c933

      SHA512

      84ece8184a107d450d8a006fcc51e67a9c8b32f6befaa40ee736fe1a5a7e5b3d5629f9224e833767c996dc3e9c94c1e28d309ba12f3f6de8008211f42ad165c2

      Download Submit
    • memory/1584-3-0x0000000000000000-mapping.dmp
      Download
    • memory/1744-6-0x0000000000000000-mapping.dmp
      Download