Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2024 03:25

General

  • Target

    85cc2fe2f271f615bb4fe4b9107461c4.exe

  • Size

    109KB

  • MD5

    85cc2fe2f271f615bb4fe4b9107461c4

  • SHA1

    f30cfec3c082a42a1623b4b024f31605e960c9ef

  • SHA256

    000b4632c1849889a989210d6794eaa9338379a416456755c2e00f1a1e939447

  • SHA512

    645cb2cbdff113f4eb49cbec63866770374f7fa85b6d22517f8760d33a748623adb640caead2279bbbd33f871b07a85f5740930640f3a1bc62d54821d903440c

  • SSDEEP

    3072:YmBS5BuIPHxD8Un3lrn70YdyD2hSjZdxm:BYZpDrn15hkZdxm

Malware Config

Extracted

Family

xtremerat

C2

vvnv12.no-ip.biz

Signatures

  • Detect XtremeRAT payload 8 IoCs
  • XtremeRAT

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

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85cc2fe2f271f615bb4fe4b9107461c4.exe
    "C:\Users\Admin\AppData\Local\Temp\85cc2fe2f271f615bb4fe4b9107461c4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Users\Admin\AppData\Local\Temp\85cc2fe2f271f615bb4fe4b9107461c4.exe
      2⤵
      • Modifies Installed Components in the registry
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:1784
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1784 -s 484
            4⤵
            • Program crash
            PID:4988
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1784 -s 492
            4⤵
            • Program crash
            PID:5068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1784 -ip 1784
      1⤵
        PID:4048
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1784 -ip 1784
        1⤵
          PID:1396

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1784-8-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1784-12-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-3-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-4-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-5-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-7-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-11-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/1880-13-0x0000000010000000-0x000000001004A000-memory.dmp

          Filesize

          296KB

        • memory/3256-0-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/3256-6-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB