Overview

overview

10

Static

static

8B54AC281E...93.exe

windows7_x64

10

8B54AC281E...93.exe

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08-10-2021 02:32

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General

  • Target

    8B54AC281EA90D359B212B1CE7FFD0B4AC5CAB9EE2F93.exe

  • Size

    395KB

  • MD5

    72a2512b36128f94127a7206df3a5032

  • SHA1

    6a3873d420dad9f5f20ce7f8493efc3c2cfe5a18

  • SHA256

    8b54ac281ea90d359b212b1ce7ffd0b4ac5cab9ee2f93bd9ca393b992556e80a

  • SHA512

    2122b37537c94960ba2154e8c15acd2b3983cf53314e8368b02ee87956e8d98287163f64917a844be30dae8a7c0936604b4ec94df0fc81192d270865ac640166

Score
10/10
njratlammerevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Lammer

C2

6.tcp.ngrok.io:16860

Mutex

142514b06c5331e576c2b748ba1ec681

Attributes
  • reg_key

    142514b06c5331e576c2b748ba1ec681

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 3 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8B54AC281EA90D359B212B1CE7FFD0B4AC5CAB9EE2F93.exe
    "C:\Users\Admin\AppData\Local\Temp\8B54AC281EA90D359B212B1CE7FFD0B4AC5CAB9EE2F93.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Roaming\server.EXE
      "C:\Users\Admin\AppData\Roaming\server.EXE"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:296
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.EXE" "server.EXE" ENABLE
        3⤵
          PID:1756
      • C:\Users\Admin\AppData\Roaming\CSGhost-V4.EXE
        "C:\Users\Admin\AppData\Roaming\CSGhost-V4.EXE"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2272
        • C:\Users\Admin\AppData\Local\Temp\temp_wrapped_31366.exe
          "C:\Users\Admin\AppData\Local\Temp\temp_wrapped_31366.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:3232

    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

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\temp_wrapped_31366.exe
      MD5

      6626698df959dedebe4bba05a5212cb6

      SHA1

      44b29eea5e11a7805fe74df6d7acc708d4e2c04f

      SHA256

      ca7847a603db8ee2912c946b15ba8f7c6e4a6de13f8192792e58287859dee57a

      SHA512

      312b55a55348dbe85222d80df3142806411537e2fdee5338c0062825f030be73b5142d452c861059988c40c8172d1a3baa3f0d1f97dac6c7dff17c31d01822e8

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\temp_wrapped_31366.exe
      MD5

      6626698df959dedebe4bba05a5212cb6

      SHA1

      44b29eea5e11a7805fe74df6d7acc708d4e2c04f

      SHA256

      ca7847a603db8ee2912c946b15ba8f7c6e4a6de13f8192792e58287859dee57a

      SHA512

      312b55a55348dbe85222d80df3142806411537e2fdee5338c0062825f030be73b5142d452c861059988c40c8172d1a3baa3f0d1f97dac6c7dff17c31d01822e8

      Download Submit
    • C:\Users\Admin\AppData\Roaming\CSGhost-V4.EXE
      MD5

      f46ebc4410101fc838ca6dbab76c90e1

      SHA1

      f687b1880256cf8261c16a18cea4b5d2b76c92d3

      SHA256

      724c6c491d8d46f9a7e41192ba5926f0ee7b82e9315761f51520c9b6d2ee4be0

      SHA512

      244f7a5f46178b7c2935e2261d7fef5af8dfb55113388b8dce2dca070885cfe480913e1325a519cfd2e8b3351b12142edb989d2d8da6b153814b0bb3f3e217f1

      Download Submit
    • C:\Users\Admin\AppData\Roaming\CSGhost-v4.exe
      MD5

      f46ebc4410101fc838ca6dbab76c90e1

      SHA1

      f687b1880256cf8261c16a18cea4b5d2b76c92d3

      SHA256

      724c6c491d8d46f9a7e41192ba5926f0ee7b82e9315761f51520c9b6d2ee4be0

      SHA512

      244f7a5f46178b7c2935e2261d7fef5af8dfb55113388b8dce2dca070885cfe480913e1325a519cfd2e8b3351b12142edb989d2d8da6b153814b0bb3f3e217f1

      Download Submit
    • C:\Users\Admin\AppData\Roaming\server.EXE
      MD5

      a873745adb5279248a7ea3cccff26c3c

      SHA1

      551fb96900684f790fca3b2b837d1c88ef0508dc

      SHA256

      8320f6171990184f84338329dae465e33ef90e1a9584e7087b226d682b8e1594

      SHA512

      09d94e876577cd9c1ae164bb6bfa94fc440482f2fc5e775b6d7222508ad4ef53697f2164044b30789d7a2cf4f703a98d4958968c7cd774811a89a2188310b87f

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

      a873745adb5279248a7ea3cccff26c3c

      SHA1

      551fb96900684f790fca3b2b837d1c88ef0508dc

      SHA256

      8320f6171990184f84338329dae465e33ef90e1a9584e7087b226d682b8e1594

      SHA512

      09d94e876577cd9c1ae164bb6bfa94fc440482f2fc5e775b6d7222508ad4ef53697f2164044b30789d7a2cf4f703a98d4958968c7cd774811a89a2188310b87f

      Download Submit
    • memory/296-116-0x0000000000000000-mapping.dmp
      Download
    • memory/296-125-0x0000000002D90000-0x0000000002D91000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1400-114-0x0000000000850000-0x0000000000851000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1400-115-0x0000000000850000-0x0000000000851000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1756-126-0x0000000000000000-mapping.dmp
      Download
    • memory/2272-119-0x0000000000000000-mapping.dmp
      Download
    • memory/3232-122-0x0000000000000000-mapping.dmp
      Download