Analysis

  • max time kernel
    2s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 14:15

General

  • Target

    bc02d90763f0b879a7c15d6c3e0d032e.exe

  • Size

    3.9MB

  • MD5

    bc02d90763f0b879a7c15d6c3e0d032e

  • SHA1

    d0a796ea5614da416eb88780f6783b308da7a875

  • SHA256

    d800e488f259a78fc423f62f66b5ae89f632b6e97ffcb826853a93bf1bfd5130

  • SHA512

    e4dc547a8a84343c8466e7ff8e66f6eaf289acde8c6bee9bf4b600d2d56177451458a1c0374e4bed3e1da9564a7773a6a082f3c180aea5562067015f21cfad3e

  • SSDEEP

    98304:K4XTT2lNL/Ecakcibiqhd+UhQdiqcakcibiqhtnr+ckuwkteNKUWcakcibiqhd+4:DXTT2PEdlirzJoiqdlirvTwTUNdlirz9

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe" /TN QxutJGth3fd4 /F
    1⤵
    • Creates scheduled task(s)
    PID:2788
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN QxutJGth3fd4
    1⤵
      PID:2904
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c schtasks.exe /Query /XML /TN QxutJGth3fd4 > C:\Users\Admin\AppData\Local\Temp\u5iBghCz.xml
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3008
    • C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe
      C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe
      1⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe
      "C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe"
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: RenamesItself
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2988

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe

      Filesize

      124KB

      MD5

      73fc164126a8a6c2b9f2f9e93690e4e6

      SHA1

      e4466ad769bcfa9161cecf32efce038756a09c01

      SHA256

      b44733d896ae036d5295b71ee03499557eaf2f701fec776f50bd86180fe29984

      SHA512

      fb679eb8bcc080aee56b2a24ec0cc96d03f1bdc964d68d77547b719289c14e6af72ac1b084a50f08947c2232ab024e24c50721015ff13b0f0f79608f5ffacc8d

    • \Users\Admin\AppData\Local\Temp\bc02d90763f0b879a7c15d6c3e0d032e.exe

      Filesize

      78KB

      MD5

      8760f22f8eb94ce166830913b8e9924a

      SHA1

      93a901dc8fe090c92c43458af8fa44945a9d5e31

      SHA256

      6e8ffcd15c6e66262e21e42586e3cae271bb33617718c0d9fad99a9518044808

      SHA512

      b633b395f7fbe55666ec6e80a410e297de6da63bcaf8b9165006c14c593c1d33db2f516f847e847c20bfd839c7a1d9797ffe36723949300bcdf1c55e31bebe18

    • memory/1744-18-0x0000000022DF0000-0x0000000022E6E000-memory.dmp

      Filesize

      504KB

    • memory/1744-30-0x0000000000280000-0x00000000002EB000-memory.dmp

      Filesize

      428KB

    • memory/1744-25-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1744-21-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/1744-52-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2988-2-0x0000000022D90000-0x0000000022E0E000-memory.dmp

      Filesize

      504KB

    • memory/2988-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/2988-16-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/2988-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB