Analysis

  • max time kernel
    178s
  • max time network
    194s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    29-01-2022 05:11

General

  • Target

    8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe

  • Size

    155KB

  • MD5

    b5b82647f5478d76c7a6d03f56a4a5d4

  • SHA1

    adc613169ac58740eb92aa9e8bbd163f4c0079c0

  • SHA256

    8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd

  • SHA512

    9cc88fe37bb0d21002b18916358c1d24ad1f10dabbbf952193536680aac1df3fc96dfab40d28a59c74c5186724fbda2c4227c090710d2ee2aafb6aebefb1b7d1

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

nassimben.ddns.net:7711

Mutex

61c5d31221bfeea9f7198ff2ff7303ff

Attributes
  • reg_key

    61c5d31221bfeea9f7198ff2ff7303ff

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe
    "C:\Users\Admin\AppData\Local\Temp\8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Users\Admin\AppData\Local\Temp\8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe
      C:\Users\Admin\AppData\Local\Temp\8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4080
      • C:\Users\Admin\AppData\Local\Temp\svshost.exe
        "C:\Users\Admin\AppData\Local\Temp\svshost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1292
        • C:\Users\Admin\AppData\Local\Temp\svshost.exe
          C:\Users\Admin\AppData\Local\Temp\svshost.exe
          4⤵
          • Executes dropped EXE
          • Drops startup file
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:704
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svshost.exe" "svshost.exe" ENABLE
            5⤵
              PID:900

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd.exe.log

      MD5

      4088f43d4f60b5f5c952890e791c729f

      SHA1

      7e8d13f85744b8c04eabc882aca7d6032230c0b0

      SHA256

      d1e60503233c8de2e4ef9b60151b30ede8f7422668a480244c1cf02a465cece3

      SHA512

      89203e06eab1231ff601ee74f1cc22d30f4f956bb68157ee5ea0a2fdbaa55a4110b52d658a68dd66d85295cb03c94fe16dd79c631e296ffe12797f72a1472405

    • C:\Users\Admin\AppData\Local\Temp\svshost.exe

      MD5

      b5b82647f5478d76c7a6d03f56a4a5d4

      SHA1

      adc613169ac58740eb92aa9e8bbd163f4c0079c0

      SHA256

      8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd

      SHA512

      9cc88fe37bb0d21002b18916358c1d24ad1f10dabbbf952193536680aac1df3fc96dfab40d28a59c74c5186724fbda2c4227c090710d2ee2aafb6aebefb1b7d1

    • C:\Users\Admin\AppData\Local\Temp\svshost.exe

      MD5

      b5b82647f5478d76c7a6d03f56a4a5d4

      SHA1

      adc613169ac58740eb92aa9e8bbd163f4c0079c0

      SHA256

      8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd

      SHA512

      9cc88fe37bb0d21002b18916358c1d24ad1f10dabbbf952193536680aac1df3fc96dfab40d28a59c74c5186724fbda2c4227c090710d2ee2aafb6aebefb1b7d1

    • C:\Users\Admin\AppData\Local\Temp\svshost.exe

      MD5

      b5b82647f5478d76c7a6d03f56a4a5d4

      SHA1

      adc613169ac58740eb92aa9e8bbd163f4c0079c0

      SHA256

      8b191797f59eed06a02682638aef669c467eb1b0a205f4e525bd1ec0b1d13ddd

      SHA512

      9cc88fe37bb0d21002b18916358c1d24ad1f10dabbbf952193536680aac1df3fc96dfab40d28a59c74c5186724fbda2c4227c090710d2ee2aafb6aebefb1b7d1

    • memory/704-134-0x0000000005530000-0x0000000005A2E000-memory.dmp

      Filesize

      5.0MB

    • memory/1292-133-0x00000000056D0000-0x0000000005BCE000-memory.dmp

      Filesize

      5.0MB

    • memory/1292-132-0x00000000056D0000-0x0000000005BCE000-memory.dmp

      Filesize

      5.0MB

    • memory/3588-121-0x0000000005680000-0x000000000568A000-memory.dmp

      Filesize

      40KB

    • memory/3588-125-0x00000000056B0000-0x0000000005BAE000-memory.dmp

      Filesize

      5.0MB

    • memory/3588-126-0x0000000009CC0000-0x0000000009CD8000-memory.dmp

      Filesize

      96KB

    • memory/3588-123-0x0000000005740000-0x000000000574A000-memory.dmp

      Filesize

      40KB

    • memory/3588-122-0x0000000007A10000-0x0000000007AAC000-memory.dmp

      Filesize

      624KB

    • memory/3588-117-0x0000000000E50000-0x0000000000E7C000-memory.dmp

      Filesize

      176KB

    • memory/3588-120-0x00000000056B0000-0x0000000005BAE000-memory.dmp

      Filesize

      5.0MB

    • memory/3588-119-0x0000000005750000-0x00000000057E2000-memory.dmp

      Filesize

      584KB

    • memory/3588-118-0x0000000005BB0000-0x00000000060AE000-memory.dmp

      Filesize

      5.0MB

    • memory/4080-124-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB