Analysis

  • max time kernel
    145s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 11:55

General

  • Target

    e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe

  • Size

    316KB

  • MD5

    6388b0c729f20b3dbd680945479d2f80

  • SHA1

    7b3d01217936f8028c7ba917cb73e15b6c51a823

  • SHA256

    e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda

  • SHA512

    1c8389364c37535521700fc45d61025a4578d295b39ab5028690a2807fb22072c03ad3ac4bfb58646290a71156e71f4457a197d52d7404e6131aa81c4e9134c0

  • SSDEEP

    1536:2ntvJyGe1KmWCra7PRfV2GeJJL0Mk0PCZSAEDzzKb+4:skGe1jGPRyJ4saWD3c

Malware Config

Extracted

Family

xtremerat

C2

msg290yaho.myvnc.com

Signatures

  • Detect XtremeRAT payload 8 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Windows security modification 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe
    "C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3212
    • C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe
      "C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4920
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:5116
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 488
            4⤵
            • Program crash
            PID:1728
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 508
            4⤵
            • Program crash
            PID:1328
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
          3⤵
            PID:2120
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5116 -ip 5116
        1⤵
          PID:2668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5116 -ip 5116
          1⤵
            PID:4120

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/4920-135-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB

          • memory/4920-134-0x0000000000000000-mapping.dmp

          • memory/4920-136-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB

          • memory/4920-137-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB

          • memory/4920-138-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB

          • memory/4920-140-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB

          • memory/5116-139-0x0000000000000000-mapping.dmp

          • memory/5116-141-0x0000000010000000-0x000000001004A000-memory.dmp

            Filesize

            296KB