Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22-03-2023 03:49

General

  • Target

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe

  • Size

    4.5MB

  • MD5

    d9554bbc5c3af0897cf964bfc05a25ee

  • SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

  • SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

  • SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • SSDEEP

    98304:J+pInoZjT50eNzIWXNYrDPARZ2L7h2XvkKjTPeLcDvt6mUE7iaLGtBHCql+jWh7g:oGU+eN1NIDY/Y3KjTeCV6m9/LGFl+

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe
    "C:\Users\Admin\AppData\Local\Temp\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe
      "C:\Users\Admin\AppData\Local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\MSXML 6.18\Lospensdkm.exe

    Filesize

    4.5MB

    MD5

    d9554bbc5c3af0897cf964bfc05a25ee

    SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

    SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

    SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • C:\Users\Admin\AppData\Local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe

    Filesize

    4.5MB

    MD5

    d9554bbc5c3af0897cf964bfc05a25ee

    SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

    SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

    SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • C:\Users\Admin\AppData\Local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe

    Filesize

    4.5MB

    MD5

    d9554bbc5c3af0897cf964bfc05a25ee

    SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

    SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

    SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • \??\c:\users\admin\appdata\local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe

    Filesize

    4.5MB

    MD5

    d9554bbc5c3af0897cf964bfc05a25ee

    SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

    SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

    SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • \Users\Admin\AppData\Local\8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857.exe

    Filesize

    4.5MB

    MD5

    d9554bbc5c3af0897cf964bfc05a25ee

    SHA1

    dc7d515a4c955d50b6f33672428435e7eecf68b6

    SHA256

    8933cf5ca29e78a3c23f35f7b837efcf6f5f76d88c902ed08205b213165bd857

    SHA512

    563fed4d113e721c337f8708f380bbe09fe29b70d16e5a32c478d26433a0a93ff49d9d832cb209d5312316cbdfd9de7cf666275ba0aae9f8d8de75624a7e8708

  • memory/1400-89-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-84-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-95-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-72-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

    Filesize

    3.8MB

  • memory/1400-94-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-93-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-75-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-76-0x0000000010000000-0x000000001002A000-memory.dmp

    Filesize

    168KB

  • memory/1400-81-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-82-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

    Filesize

    3.8MB

  • memory/1400-83-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-92-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-85-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-86-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-87-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-88-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-91-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/1400-90-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/2036-55-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/2036-62-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB

  • memory/2036-56-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

    Filesize

    3.8MB

  • memory/2036-57-0x0000000010000000-0x000000001002A000-memory.dmp

    Filesize

    168KB

  • memory/2036-70-0x0000000000400000-0x00000000018E7000-memory.dmp

    Filesize

    20.9MB