Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-01-2022 17:22

General

  • Target

    #461432638.exe

  • Size

    979KB

  • MD5

    29bf474d20e0b17a36577c6e903e8afb

  • SHA1

    11cf027edff4d91c634b23972c612a9998b7173f

  • SHA256

    9ba526eaa176389b20e270129a403934a9625fdee27f1ad36ed20289f178421c

  • SHA512

    bab8419ec4c686e01f173ee23a21c4345c8e2f0cf1bd32d7302993b0cdc513b897563f7bb14b589b7920aedec4c027d74fa8924c72a11c83884ddc5b74484cb4

Malware Config

Extracted

Family

njrat

Version

1.9

Botnet

HacKed

Mutex

Microsoft.Exe

Attributes
  • reg_key

    Microsoft.Exe

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\#461432638.exe
    "C:\Users\Admin\AppData\Local\Temp\#461432638.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NjGbuw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D0C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1164
    • C:\Users\Admin\AppData\Local\Temp\#461432638.exe
      "{path}"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:596
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\#461432638.exe" "#461432638.exe" ENABLE
        3⤵
          PID:1176

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\#461432638.exe.log

      MD5

      90acfd72f14a512712b1a7380c0faf60

      SHA1

      40ba4accb8faa75887e84fb8e38d598dc8cf0f12

      SHA256

      20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

      SHA512

      29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

    • C:\Users\Admin\AppData\Local\Temp\tmp7D0C.tmp

      MD5

      5e8ac5638777d70286cc5f95a91397dc

      SHA1

      40eeac66685cd6e8b4d59a95d7d6ccfa551a67b8

      SHA256

      1d488ae0d7666ef9d582115b0ff1caebb6769e81c90f506245232c6e5587aef8

      SHA512

      bf83e07126aa171bf02a4b8b78b4007f40f52395599825e32f517c35b254db2e196fe37ca1074aba2c6a16501d865053db425d97eb6e0321d6d24ef4a75aa335

    • memory/596-130-0x00000000064D0000-0x00000000064E8000-memory.dmp

      Filesize

      96KB

    • memory/596-129-0x0000000005E40000-0x0000000005EA6000-memory.dmp

      Filesize

      408KB

    • memory/596-128-0x0000000005270000-0x000000000530C000-memory.dmp

      Filesize

      624KB

    • memory/596-126-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/2336-119-0x0000000005580000-0x000000000558A000-memory.dmp

      Filesize

      40KB

    • memory/2336-122-0x0000000005650000-0x000000000565A000-memory.dmp

      Filesize

      40KB

    • memory/2336-123-0x00000000075D0000-0x0000000007636000-memory.dmp

      Filesize

      408KB

    • memory/2336-124-0x0000000005770000-0x0000000005780000-memory.dmp

      Filesize

      64KB

    • memory/2336-121-0x00000000054B0000-0x00000000059AE000-memory.dmp

      Filesize

      5.0MB

    • memory/2336-120-0x0000000005670000-0x00000000056C6000-memory.dmp

      Filesize

      344KB

    • memory/2336-115-0x0000000000A70000-0x0000000000B6A000-memory.dmp

      Filesize

      1000KB

    • memory/2336-118-0x00000000054B0000-0x0000000005542000-memory.dmp

      Filesize

      584KB

    • memory/2336-117-0x00000000059B0000-0x0000000005EAE000-memory.dmp

      Filesize

      5.0MB

    • memory/2336-116-0x0000000005410000-0x00000000054AC000-memory.dmp

      Filesize

      624KB