Overview

overview

10

Static

static

10

5b214ea4cc...ca.exe

windows7_x64

10

5b214ea4cc...ca.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 04:30

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General

  • Target

    5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca.exe

  • Size

    31KB

  • MD5

    b5d21530538e7822bd6ccbf4458eb903

  • SHA1

    d44b98c09eecc1358dec7378de630d9da63e5a25

  • SHA256

    5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca

  • SHA512

    91c37315bd4372fcd24396aff2efcd018ed83e4c44a8eb4db23f1815cd2114cb9ba2e7dab5509e68edc7e596b5da9abc9173a845531838a275cecbe108388d36

Score
10/10
njratqevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

q

C2

90.191.122.120:6522

Mutex

255d238b748d6b3fe0502dded68c366c

Attributes
  • reg_key

    255d238b748d6b3fe0502dded68c366c

  • splitter

    Y262SUCZ4UJJ

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 use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca.exe
    "C:\Users\Admin\AppData\Local\Temp\5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Users\Admin\AppData\Roaming\WindowsServices.exe
      "C:\Users\Admin\AppData\Roaming\WindowsServices.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
          PID:2000

    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\WindowsServices.exe
      Filesize

      31KB

      MD5

      b5d21530538e7822bd6ccbf4458eb903

      SHA1

      d44b98c09eecc1358dec7378de630d9da63e5a25

      SHA256

      5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca

      SHA512

      91c37315bd4372fcd24396aff2efcd018ed83e4c44a8eb4db23f1815cd2114cb9ba2e7dab5509e68edc7e596b5da9abc9173a845531838a275cecbe108388d36

      Download Submit
    • C:\Users\Admin\AppData\Roaming\WindowsServices.exe
      Filesize

      31KB

      MD5

      b5d21530538e7822bd6ccbf4458eb903

      SHA1

      d44b98c09eecc1358dec7378de630d9da63e5a25

      SHA256

      5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca

      SHA512

      91c37315bd4372fcd24396aff2efcd018ed83e4c44a8eb4db23f1815cd2114cb9ba2e7dab5509e68edc7e596b5da9abc9173a845531838a275cecbe108388d36

      Download Submit
    • \Users\Admin\AppData\Roaming\WindowsServices.exe
      Filesize

      31KB

      MD5

      b5d21530538e7822bd6ccbf4458eb903

      SHA1

      d44b98c09eecc1358dec7378de630d9da63e5a25

      SHA256

      5b214ea4cc035e5375f3a6335c847dea72c5db6f8423828d0d27f7ab6ef4e0ca

      SHA512

      91c37315bd4372fcd24396aff2efcd018ed83e4c44a8eb4db23f1815cd2114cb9ba2e7dab5509e68edc7e596b5da9abc9173a845531838a275cecbe108388d36

      Download Submit
    • memory/780-54-0x0000000076531000-0x0000000076533000-memory.dmp
      Filesize

      8KB

      Download
    • memory/780-55-0x0000000074AE0000-0x000000007508B000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/1648-57-0x0000000000000000-mapping.dmp
      Download
    • memory/1648-61-0x0000000074AE0000-0x000000007508B000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/2000-62-0x0000000000000000-mapping.dmp
      Download