Overview

overview

10

Static

static

10

08B2E926B9...D0.exe

windows7_x64

10

08B2E926B9...D0.exe

windows10_x64

10

Analysis

  • max time kernel
    170s
  • max time network
    158s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    08-09-2021 14:17

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General

  • Target

    08B2E926B95DD3A599AF3A697C3D9B1512586A2587AD0.exe

  • Size

    23KB

  • MD5

    755bd609b015768d247077ccbf2a407a

  • SHA1

    3484d468c4bda04f6c370118d03ab3ee5d1c43d0

  • SHA256

    08b2e926b95dd3a599af3a697c3d9b1512586a2587ad08d56b0ee4256fd33db1

  • SHA512

    cbe706d7daf9167112257761085bc5fab214dae27a6637c1b9dcbdd6d539e7893a049c4c7a1c457cd668e14dc03b0352c4311918d8cf19cf4973da4ccdddc3c2

Score
10/10
njrathackedevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

win08.zapto.org:84

Mutex

79627ac12211c58cdd3a218a06264901

Attributes
  • reg_key

    79627ac12211c58cdd3a218a06264901

  • 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
  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08B2E926B95DD3A599AF3A697C3D9B1512586A2587AD0.exe
    "C:\Users\Admin\AppData\Local\Temp\08B2E926B95DD3A599AF3A697C3D9B1512586A2587AD0.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Roaming\contrasena.exe
      "C:\Users\Admin\AppData\Roaming\contrasena.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3960
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\contrasena.exe" "contrasena.exe" ENABLE
        3⤵
          PID:3924

    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\contrasena.exe
      MD5

      755bd609b015768d247077ccbf2a407a

      SHA1

      3484d468c4bda04f6c370118d03ab3ee5d1c43d0

      SHA256

      08b2e926b95dd3a599af3a697c3d9b1512586a2587ad08d56b0ee4256fd33db1

      SHA512

      cbe706d7daf9167112257761085bc5fab214dae27a6637c1b9dcbdd6d539e7893a049c4c7a1c457cd668e14dc03b0352c4311918d8cf19cf4973da4ccdddc3c2

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

      755bd609b015768d247077ccbf2a407a

      SHA1

      3484d468c4bda04f6c370118d03ab3ee5d1c43d0

      SHA256

      08b2e926b95dd3a599af3a697c3d9b1512586a2587ad08d56b0ee4256fd33db1

      SHA512

      cbe706d7daf9167112257761085bc5fab214dae27a6637c1b9dcbdd6d539e7893a049c4c7a1c457cd668e14dc03b0352c4311918d8cf19cf4973da4ccdddc3c2

      Download Submit
    • memory/3924-120-0x0000000000000000-mapping.dmp
      Download
    • memory/3960-116-0x0000000000000000-mapping.dmp
      Download
    • memory/3960-119-0x0000000003020000-0x0000000003021000-memory.dmp
      Filesize

      4KB

      Download
    • memory/4000-115-0x0000000000C80000-0x0000000000C81000-memory.dmp
      Filesize

      4KB

      Download