Analysis

  • max time kernel
    152s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:16

General

  • Target

    57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe

  • Size

    117KB

  • MD5

    54ef63adae22a3f65e31292fc73e0988

  • SHA1

    bbb0a96f006a633bb1326b14958516b42f1d37cc

  • SHA256

    57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8

  • SHA512

    dcc82f1247cae2268ea5192e874f6836ca4548750067ec24b9b70706fb2118f9c54c92f4c1f726dc71775326e1151c7f1075316836c758f5f270efd61e028437

  • SSDEEP

    3072:bC2FWOpfhDgaXBp2EIdXeAZqjHGcPjzqU+0VU:f02FxnIZetbXG+

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

hecked

C2

tarikkungfeude.no-ip.biz:1177

Mutex

ff5b36e94ed32112d022b6a1fe2be27e

Attributes
  • reg_key

    ff5b36e94ed32112d022b6a1fe2be27e

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe
    "C:\Users\Admin\AppData\Local\Temp\57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Users\Admin\AppData\Local\Temp\57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe
      C:\Users\Admin\AppData\Local\Temp\57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Users\Admin\AppData\Local\Temp\vlc.exe
        "C:\Users\Admin\AppData\Local\Temp\vlc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4180
        • C:\Users\Admin\AppData\Local\Temp\vlc.exe
          C:\Users\Admin\AppData\Local\Temp\vlc.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2044
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\vlc.exe" "vlc.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:4948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8.exe.log

    Filesize

    587B

    MD5

    ec1d4f8482eabd1b31097b6b83fd2d06

    SHA1

    b00d2dca5c255ccc34a50b5a5ed894afabf13ba6

    SHA256

    f7c7efd546b3232d33f49656fcf5a5d883400fe2fa27b40c60db695c4a16c671

    SHA512

    a21cd5912f1cee6663ad16b687a0ff1383fc921be5edc8ebf30b7d3b3cfcbb63a356e0b600eba05e62d900887b3e3fb0fa44eaf8453af2ce35319476c4e5e992

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

    Filesize

    117KB

    MD5

    54ef63adae22a3f65e31292fc73e0988

    SHA1

    bbb0a96f006a633bb1326b14958516b42f1d37cc

    SHA256

    57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8

    SHA512

    dcc82f1247cae2268ea5192e874f6836ca4548750067ec24b9b70706fb2118f9c54c92f4c1f726dc71775326e1151c7f1075316836c758f5f270efd61e028437

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

    Filesize

    117KB

    MD5

    54ef63adae22a3f65e31292fc73e0988

    SHA1

    bbb0a96f006a633bb1326b14958516b42f1d37cc

    SHA256

    57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8

    SHA512

    dcc82f1247cae2268ea5192e874f6836ca4548750067ec24b9b70706fb2118f9c54c92f4c1f726dc71775326e1151c7f1075316836c758f5f270efd61e028437

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

    Filesize

    117KB

    MD5

    54ef63adae22a3f65e31292fc73e0988

    SHA1

    bbb0a96f006a633bb1326b14958516b42f1d37cc

    SHA256

    57910bc5597e7df03d4d1631bc836b92530ed5865d3ed9a05d5e2df8759d41a8

    SHA512

    dcc82f1247cae2268ea5192e874f6836ca4548750067ec24b9b70706fb2118f9c54c92f4c1f726dc71775326e1151c7f1075316836c758f5f270efd61e028437

  • memory/1436-133-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1436-132-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1436-137-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-144-0x0000000000000000-mapping.dmp

  • memory/2044-147-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-150-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/4180-138-0x0000000000000000-mapping.dmp

  • memory/4180-143-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/4180-148-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/4948-149-0x0000000000000000-mapping.dmp

  • memory/5016-136-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/5016-142-0x0000000074A30000-0x0000000074FE1000-memory.dmp

    Filesize

    5.7MB

  • memory/5016-135-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/5016-134-0x0000000000000000-mapping.dmp