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Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 15:48

General

  • Target

    4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe

  • Size

    585KB

  • MD5

    55c0e0fb391a3ce4caaac1c49ed1ac00

  • SHA1

    868da3a8c72eff600d54be3babe3721489a85500

  • SHA256

    4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d

  • SHA512

    60a5a4f182a5e0dab19709276746465ae277822b990e95121cbb170d2c4e29a6d71457a4817f88d7f10aa464d2974cbdb4b7eeffe60b9e44d02bf0b30f608df1

  • SSDEEP

    12288:Za7XtTWupXNT35AcFqTCC5ktTWupXNT35AcFqTCC5I:ZEhZpXJ3SGqTCCuhZpXJ3SGqTCCm

Malware Config

Extracted

Family

xtremerat

C2

mrdead.no-ip.org

Signatures

  • Detect XtremeRAT payload 6 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 4 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
    "C:\Users\Admin\AppData\Local\Temp\4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe"
    1⤵
    • Modifies Installed Components in the registry
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Modifies Installed Components in the registry
      • Adds Run key to start application
      PID:996
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\InstallDir\Server.exe

    Filesize

    585KB

    MD5

    55c0e0fb391a3ce4caaac1c49ed1ac00

    SHA1

    868da3a8c72eff600d54be3babe3721489a85500

    SHA256

    4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d

    SHA512

    60a5a4f182a5e0dab19709276746465ae277822b990e95121cbb170d2c4e29a6d71457a4817f88d7f10aa464d2974cbdb4b7eeffe60b9e44d02bf0b30f608df1

  • memory/996-55-0x0000000000C80000-0x0000000000D1A000-memory.dmp

    Filesize

    616KB

  • memory/996-65-0x0000000000C80000-0x0000000000D1A000-memory.dmp

    Filesize

    616KB

  • memory/1436-64-0x0000000075161000-0x0000000075163000-memory.dmp

    Filesize

    8KB

  • memory/1436-66-0x0000000000C80000-0x0000000000D1A000-memory.dmp

    Filesize

    616KB

  • memory/1436-67-0x0000000000C80000-0x0000000000D1A000-memory.dmp

    Filesize

    616KB

  • memory/1488-54-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

    Filesize

    8KB