Analysis

  • max time kernel
    151s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    19/11/2021, 19:02

General

  • Target

    Setup.exe

  • Size

    554KB

  • MD5

    d9552a15a61f255df3206b63ee0383be

  • SHA1

    7c76e2edcf184b90d40003dac71b08e3a3ed2e8c

  • SHA256

    0cdd906491990c6ba9c24bdd60172057587859a8e649ba7f4b51fece9a0fdac6

  • SHA512

    0ce1db824d226df28177b6e5394fa1f8483333583d8332680d4cf0cfc8627a53d69c1c857b319dd200e0f38bf88d445a4289d78472fe3167cc39ae6a85f21599

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Users\Admin\Pictures\Adobe Films\z2MNC5GcuS6WvqYMU5aQv5Q_.exe
      "C:\Users\Admin\Pictures\Adobe Films\z2MNC5GcuS6WvqYMU5aQv5Q_.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 1484
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1736

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/1456-55-0x0000000076341000-0x0000000076343000-memory.dmp

          Filesize

          8KB

        • memory/1456-56-0x0000000003D00000-0x0000000003E4C000-memory.dmp

          Filesize

          1.3MB

        • memory/1736-61-0x0000000000340000-0x0000000000341000-memory.dmp

          Filesize

          4KB