Overview

overview

10

Static

static

c81fc1a7d1...53.exe

windows7_x64

10

c81fc1a7d1...53.exe

windows10_x64

10

Analysis

  • max time kernel
    160s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    14-09-2021 06:40

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General

  • Target

    c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553.exe

  • Size

    1.5MB

  • MD5

    05def69117bc5228432feac2bed343d2

  • SHA1

    7dadf53ee11702034176939a5d73891bf3cf5f61

  • SHA256

    c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553

  • SHA512

    1d253ae2efb360ea4120f18ff2ac20ea175cb3650a9257122b847d0b1b6b366b74e91835368004aa5c8f63136da01fad44ef017b27a5f25197e312d7c60a5e45

Score
10/10
njratevasionpersistencetrojan

Malware Config

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
  • 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 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553.exe
    "C:\Users\Admin\AppData\Local\Temp\c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE
        3⤵
          PID:2832

    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\explorer.exe
      MD5

      05def69117bc5228432feac2bed343d2

      SHA1

      7dadf53ee11702034176939a5d73891bf3cf5f61

      SHA256

      c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553

      SHA512

      1d253ae2efb360ea4120f18ff2ac20ea175cb3650a9257122b847d0b1b6b366b74e91835368004aa5c8f63136da01fad44ef017b27a5f25197e312d7c60a5e45

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

      05def69117bc5228432feac2bed343d2

      SHA1

      7dadf53ee11702034176939a5d73891bf3cf5f61

      SHA256

      c81fc1a7d158166451f398de956d84adbfdabb433717a3f31461d711ff313553

      SHA512

      1d253ae2efb360ea4120f18ff2ac20ea175cb3650a9257122b847d0b1b6b366b74e91835368004aa5c8f63136da01fad44ef017b27a5f25197e312d7c60a5e45

      Download Submit
    • memory/1824-117-0x0000000005080000-0x0000000005081000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1824-118-0x00000000086F0000-0x00000000086F1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1824-119-0x0000000002A70000-0x0000000002AA6000-memory.dmp
      Filesize

      216KB

      Download
    • memory/1824-120-0x0000000000FC0000-0x0000000000FC8000-memory.dmp
      Filesize

      32KB

      Download
    • memory/1824-121-0x0000000008C00000-0x0000000008C01000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1824-115-0x0000000000680000-0x0000000000681000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2832-131-0x0000000000000000-mapping.dmp
      Download
    • memory/3652-122-0x0000000000000000-mapping.dmp
      Download
    • memory/3652-132-0x0000000002D10000-0x0000000002D11000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3652-133-0x0000000005700000-0x0000000005701000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3652-134-0x00000000056A0000-0x00000000056A1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3652-135-0x0000000002D13000-0x0000000002D15000-memory.dmp
      Filesize

      8KB

      Download