Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 08:44

General

  • Target

    33820d3ba04eee29714cba777976ae87dbfa7bd88504b95d435076d6d7d66795.exe

  • Size

    244KB

  • MD5

    3e020227d97d5342c0102c1ed82a45d6

  • SHA1

    fb54056d5cf9f8c9a0ca84c153d40b243cf9226d

  • SHA256

    33820d3ba04eee29714cba777976ae87dbfa7bd88504b95d435076d6d7d66795

  • SHA512

    7af4377b8f6e813d38f560ab396bea20c3c76cd1efea35aa676c38fd4b3413dbce01e2a6c4bb13ce3ec941909dfdf096424740bfd28fb3b357bc07aa73005a7f

  • SSDEEP

    6144:tM23S/s6DS1P5FNEWn3lEQTMgAhjcIDRX0CFpzSYD:tM26s62fFDn1EFgAhjFRX5rBD

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33820d3ba04eee29714cba777976ae87dbfa7bd88504b95d435076d6d7d66795.exe
    "C:\Users\Admin\AppData\Local\Temp\33820d3ba04eee29714cba777976ae87dbfa7bd88504b95d435076d6d7d66795.exe"
    1⤵
    • Adds Run key to start application
    • Checks for any installed AV software in registry
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:684

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/896-54-0x0000000075E31000-0x0000000075E33000-memory.dmp

    Filesize

    8KB

  • memory/896-57-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/896-56-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/896-58-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB