Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28-01-2024 12:36

General

  • Target

    7d25f10b8321bf59dc5dd65e23abacfc.exe

  • Size

    140KB

  • MD5

    7d25f10b8321bf59dc5dd65e23abacfc

  • SHA1

    f1920081a3b49130aaf9ac3a429bf9b5b9022266

  • SHA256

    42a30e607fb699b5ee46ccb50113dd80dbaaae5a1bfe4877b8848a96c60e559d

  • SHA512

    dd395d687978d0a15c1e26b4173b20180e397f470a15ec8deefed64d2aa769acc6199c6fbc764d11f438d02308fc91b0da2f9a79f0cac19863e2d5dd0a16997a

  • SSDEEP

    3072:ltcwBbJ7WmdujrCN4N4dwfJ7WmdujrCN4N4dwL3KUeFbNJ4:ltTQONRdUQONRdM3NeFZ

Malware Config

Signatures

  • Detect XtremeRAT payload 3 IoCs
  • XtremeRAT

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 9 IoCs

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

  • Adds Run key to start application 2 TTPs 1 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 WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe
    "C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\systemk.exe
      C:\Users\Admin\AppData\Local\Temp\systemk.exe
      2⤵
      • Executes dropped EXE
      PID:3056
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:2720
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2876

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \Users\Admin\AppData\Local\Temp\server.exe

        Filesize

        33KB

        MD5

        a00121c2f045a8f12c9a51a9b3872cb5

        SHA1

        5cdec4fc03894fbe452156543f2ec4fd72368ae8

        SHA256

        438d8db46e231e9bd86b469eaaa924924ed69362008a3fc7dd589f4fc105846c

        SHA512

        98b947e4cb98085b0fbfae69230b09ea6412773c72edd9e69cea0525d2a524c79965003779e1e7aa9150a5d861e4ac9b2e722de87f4c03a54be2bee898d8c780

      • \Users\Admin\AppData\Local\Temp\systemk.exe

        Filesize

        7KB

        MD5

        d79efb472a22ad75d501317b21e66b5e

        SHA1

        24512f54884d3dda2d803457bbd3dcd513356196

        SHA256

        7255b1d1f001b9d9a5177e1f8063bcc824effe3570e6c19508babe12bb73c7d6

        SHA512

        7c5a2f516a727ddeb05f9a7c6565375debb05709ac9b95212fc748cba37a2ab81b7d727636141096e4511679ce140b07b37fdf36cfb47d8d1c8accdd24163ae5

      • memory/2720-36-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/2720-34-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/2896-35-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/2896-30-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/2980-29-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/2980-1-0x0000000074EA0000-0x000000007544B000-memory.dmp

        Filesize

        5.7MB

      • memory/2980-2-0x0000000000590000-0x00000000005D0000-memory.dmp

        Filesize

        256KB

      • memory/2980-0-0x0000000074EA0000-0x000000007544B000-memory.dmp

        Filesize

        5.7MB

      • memory/2980-32-0x0000000074EA0000-0x000000007544B000-memory.dmp

        Filesize

        5.7MB

      • memory/2980-23-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/3056-10-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/3056-15-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/3056-12-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/3056-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/3056-11-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB