Analysis

  • max time kernel
    229s
  • max time network
    288s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:52

General

  • Target

    f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81.exe

  • Size

    700KB

  • MD5

    4d54b1b6b2eca2398045edc72ad2584c

  • SHA1

    930452dfa938fba49346086d137c653ad0919f04

  • SHA256

    f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

  • SHA512

    719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

  • SSDEEP

    12288:dM9YxCEHsfcdN9l7IpcD9fR1f36tv4g8PcOUBimJl7CyZv6Xi:aEBsUT9JP8w7ECyZvk

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81.exe
    "C:\Users\Admin\AppData\Local\Temp\f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81.exe
      "C:\Users\Admin\AppData\Local\Temp\f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81.exe"
      2⤵
      • UAC bypass
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1188
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\System32\netsh.exe" Firewall set opmode disable
        3⤵
        • Modifies Windows Firewall
        PID:1076
      • C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe
        "C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1288
        • C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe
          "C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1572
          • C:\Windows\SysWOW64\netsh.exe
            "C:\Windows\System32\netsh.exe" Firewall set opmode disable
            5⤵
            • Modifies Windows Firewall
            PID:932
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\ProgramData\pxmBOUv.vbs"
            5⤵
              PID:868

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\.{1e69ee4b-0de4-3437-8433-efecf940be05}\1e69ee4b0de434378433efecf940be05

      Filesize

      43B

      MD5

      3ac06c74d26cfdc7681cb83101430c10

      SHA1

      a370f9ad9c599b3b12ba579097a8cc1268ee8779

      SHA256

      7ae9348ff0696ea0aef18326580ac1098f8ea7885c621c40ac00aafcf8fb5e2c

      SHA512

      639059cd4ce4cf744fa83be2f60ef59ba1f4909ba80dd4796d47bc437b3391b4b316627cd79a1ad1129f760c60f41dd5228990dde12dea4e135ecc207f4e3a96

    • C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe

      Filesize

      700KB

      MD5

      4d54b1b6b2eca2398045edc72ad2584c

      SHA1

      930452dfa938fba49346086d137c653ad0919f04

      SHA256

      f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

      SHA512

      719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

    • C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe

      Filesize

      700KB

      MD5

      4d54b1b6b2eca2398045edc72ad2584c

      SHA1

      930452dfa938fba49346086d137c653ad0919f04

      SHA256

      f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

      SHA512

      719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

    • C:\ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe

      Filesize

      700KB

      MD5

      4d54b1b6b2eca2398045edc72ad2584c

      SHA1

      930452dfa938fba49346086d137c653ad0919f04

      SHA256

      f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

      SHA512

      719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

    • C:\ProgramData\pxmBOUv.vbs

      Filesize

      683B

      MD5

      fa0b09b34743539733a18ad43486d830

      SHA1

      a3bda6a4479e25877b672c0f241006d23aa37f38

      SHA256

      8e2a821525a8821ec410f111f7ca9bb14b04dbf91cb0fe2c7da0381397df814b

      SHA512

      c5a87831aef5d0924c886cbb8ac15cb2cba1c4c0459bb947744e08e9462e8a2deb2a70196ae168af84e5358725f758a72aa5a523a95ab112298a6b2f0336f6c2

    • \ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe

      Filesize

      700KB

      MD5

      4d54b1b6b2eca2398045edc72ad2584c

      SHA1

      930452dfa938fba49346086d137c653ad0919f04

      SHA256

      f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

      SHA512

      719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

    • \ProgramData\3cfdec86b2da3c13a849930b80390b04\win-crt-.exe

      Filesize

      700KB

      MD5

      4d54b1b6b2eca2398045edc72ad2584c

      SHA1

      930452dfa938fba49346086d137c653ad0919f04

      SHA256

      f7e8dd116279e1dc26a87d485293de70c1bb87ced53b06d254c9f1bc7bab1f81

      SHA512

      719c4d09b16ca13eb2e167db1f968db9b7c6f85e165834215557adc2c3924eb073d2a2c427243bf148927a00c6db131ca486022a00388c6c5b6ee18c763f8b9d

    • memory/868-96-0x0000000000000000-mapping.dmp

    • memory/932-93-0x0000000000000000-mapping.dmp

    • memory/1008-54-0x0000000076201000-0x0000000076203000-memory.dmp

      Filesize

      8KB

    • memory/1008-67-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1076-69-0x0000000000000000-mapping.dmp

    • memory/1188-58-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-65-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-61-0x000000000041750A-mapping.dmp

    • memory/1188-59-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-68-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1188-77-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1188-55-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-60-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-63-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1188-56-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1288-87-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1288-73-0x0000000000000000-mapping.dmp

    • memory/1572-84-0x000000000041750A-mapping.dmp

    • memory/1572-94-0x00000000744A0000-0x0000000074A4B000-memory.dmp

      Filesize

      5.7MB

    • memory/1572-99-0x00000000744A0000-0x0000000074A4B000-memory.dmp

      Filesize

      5.7MB