Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 21:34

General

  • Target

    90636e2071ba6ac5f88528c55e655ca8.exe

  • Size

    354KB

  • MD5

    90636e2071ba6ac5f88528c55e655ca8

  • SHA1

    32b50e2449f4ed6b1326f359d272b3ed69bd4689

  • SHA256

    f8c294711ca0535b5301f56a977d651d54189eca90c5cc83a26cb4270124443f

  • SHA512

    0c8c61bff11c185c8345974f6ed37a0bbe133df2b7ce0c2adf3e1cb9a15f6721fc4b259ac5f667fb7b42fa4dbdfc5e99d6de64636c70c099c3e88864d47a3f4e

  • SSDEEP

    6144:thBepH41+m7vv47B32CEIsUozZ3bR4OD8yjJe6b+78x5mJBID791PD20/MV70xXe:eH4177vv4mIsUo9RDlk6KwbmXIFl1/gh

Malware Config

Extracted

Family

xtremerat

C2

kaan1993.zapto.org

Signatures

  • Detect XtremeRAT payload 7 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
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe
    "C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2288
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        PID:2204
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of SetWindowsHookEx
        PID:2704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          354KB

          MD5

          90636e2071ba6ac5f88528c55e655ca8

          SHA1

          32b50e2449f4ed6b1326f359d272b3ed69bd4689

          SHA256

          f8c294711ca0535b5301f56a977d651d54189eca90c5cc83a26cb4270124443f

          SHA512

          0c8c61bff11c185c8345974f6ed37a0bbe133df2b7ce0c2adf3e1cb9a15f6721fc4b259ac5f667fb7b42fa4dbdfc5e99d6de64636c70c099c3e88864d47a3f4e

        • memory/1452-8-0x0000000000400000-0x00000000004AD000-memory.dmp

          Filesize

          692KB

        • memory/2204-23-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2204-15-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-10-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-7-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-2-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-12-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2288-19-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-4-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2288-3-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2704-18-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2704-21-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/2704-24-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB