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Analysis

  • max time kernel
    175s
  • max time network
    180s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2022, 00:26

General

  • Target

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7.exe

  • Size

    80KB

  • MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

  • SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

  • SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

  • SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • SSDEEP

    1536:+QqnkSQsN1Tgc0uWzUAm9vxlEofE2Ut8KRE9o:+QpSQZcqovxxlTW8KRE9o

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 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 6 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7.exe
    "C:\Users\Admin\AppData\Local\Temp\0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:956
    • C:\Windows\SysWOW64\audiohd.exe
      "C:\Windows\system32\audiohd.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:584
    • C:\Program Files (x86)\Common Files\WUAuthHost.exe
      "C:\Program Files (x86)\Common Files\WUAuthHost.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:1356

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Common Files\WUAuthHost.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • C:\Program Files (x86)\Common Files\WUAuthHost.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • C:\Windows\SysWOW64\audiohd.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • C:\Windows\SysWOW64\audiohd.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • \Program Files (x86)\Common Files\WUAuthHost.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • \Windows\SysWOW64\audiohd.exe

    Filesize

    80KB

    MD5

    c8b1902dc6c5019d06fdf5b6c73b22a5

    SHA1

    99c36c23cdf55a8bdb846a4b9334d06bcf2cea4d

    SHA256

    0a1bbeaad97c7a611fbfe35e2d45d617b2b4e924a966d62568809b7e8f5724b7

    SHA512

    803d9f0dfb1ad95b6fcb6a446de2c214f86b221a9d57c743772b9584e0ace698a9bcd51ca425c4efe51532847832641aa6e511b57b3aa65a21dfcc10cabe5201

  • memory/584-61-0x0000000074770000-0x0000000074D1B000-memory.dmp

    Filesize

    5.7MB

  • memory/584-69-0x0000000074770000-0x0000000074D1B000-memory.dmp

    Filesize

    5.7MB

  • memory/956-54-0x0000000075931000-0x0000000075933000-memory.dmp

    Filesize

    8KB

  • memory/956-60-0x0000000074770000-0x0000000074D1B000-memory.dmp

    Filesize

    5.7MB

  • memory/956-67-0x0000000074770000-0x0000000074D1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1356-68-0x0000000074770000-0x0000000074D1B000-memory.dmp

    Filesize

    5.7MB