Overview

overview

10

Static

static

6838591f46...4c.exe

windows7_x64

10

6838591f46...4c.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    12s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-12-2020 14:58

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General

  • Target

    6838591f462c336b1acdcbb27304cc4c.exe

  • Size

    23KB

  • MD5

    6838591f462c336b1acdcbb27304cc4c

  • SHA1

    b4a48310ffbebb84d19f219dfcfdb18fcd254ccf

  • SHA256

    92a125397e9023a9dda19c1d11a770c29f07b06b3b3d19e60a14d5584ce18ad4

  • SHA512

    67708341db96e367717600ab549f145048e1a2ff3c113f41a814a55f7a3fba7ec3bcad340e76d7f1c3f1a673097c91aa6c4a7c19120cd223306d13f49421d1d6

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes
  • reg_key

    279f6960ed84a752570aca7fb2dc1552

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • 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\6838591f462c336b1acdcbb27304cc4c.exe
    "C:\Users\Admin\AppData\Local\Temp\6838591f462c336b1acdcbb27304cc4c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1460
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
          PID:108

    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\server.exe
      MD5

      6838591f462c336b1acdcbb27304cc4c

      SHA1

      b4a48310ffbebb84d19f219dfcfdb18fcd254ccf

      SHA256

      92a125397e9023a9dda19c1d11a770c29f07b06b3b3d19e60a14d5584ce18ad4

      SHA512

      67708341db96e367717600ab549f145048e1a2ff3c113f41a814a55f7a3fba7ec3bcad340e76d7f1c3f1a673097c91aa6c4a7c19120cd223306d13f49421d1d6

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      MD5

      6838591f462c336b1acdcbb27304cc4c

      SHA1

      b4a48310ffbebb84d19f219dfcfdb18fcd254ccf

      SHA256

      92a125397e9023a9dda19c1d11a770c29f07b06b3b3d19e60a14d5584ce18ad4

      SHA512

      67708341db96e367717600ab549f145048e1a2ff3c113f41a814a55f7a3fba7ec3bcad340e76d7f1c3f1a673097c91aa6c4a7c19120cd223306d13f49421d1d6

      Download Submit
    • \Users\Admin\AppData\Local\Temp\server.exe
      MD5

      6838591f462c336b1acdcbb27304cc4c

      SHA1

      b4a48310ffbebb84d19f219dfcfdb18fcd254ccf

      SHA256

      92a125397e9023a9dda19c1d11a770c29f07b06b3b3d19e60a14d5584ce18ad4

      SHA512

      67708341db96e367717600ab549f145048e1a2ff3c113f41a814a55f7a3fba7ec3bcad340e76d7f1c3f1a673097c91aa6c4a7c19120cd223306d13f49421d1d6

      Download Submit
    • memory/108-6-0x0000000000000000-mapping.dmp
      Download
    • memory/1460-3-0x0000000000000000-mapping.dmp
      Download