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Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2024, 12:12

General

  • Target

    7235d8195a01b40e76682dc285f8ab21.exe

  • Size

    11KB

  • MD5

    7235d8195a01b40e76682dc285f8ab21

  • SHA1

    b8340dd133116f938f6a38c3ba6cfa5fc4c790d0

  • SHA256

    f2090230c2c3ae208cb137ec72bea7536a598a9a20751b68451cb7412b60c1ea

  • SHA512

    e3a084aa256b72d3696bfbc9720bb15ef165ed79a543dd168eadb4b38b8b760fe85b7a36ba0b589c712f8d6ad2f1db82a61e2e6046f099d4e7a93dae791dcce6

  • SSDEEP

    192:CuxZH2B7O5mv/scm+eTo/+Dkl4usLZRtC45v2CmZ4Vlt3twKeYOTpzs+:CuLWB7ImnE+eTo/g84usLRCobHFdw2O3

Score
8/10

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7235d8195a01b40e76682dc285f8ab21.exe
    "C:\Users\Admin\AppData\Local\Temp\7235d8195a01b40e76682dc285f8ab21.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\comboausk.exe
      C:\Windows\system32\comboausk.exe ˜‰
      2⤵
      • Executes dropped EXE
      PID:2492
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\7235d8195a01b40e76682dc285f8ab21.exe.bat
      2⤵
      • Deletes itself
      PID:2712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7235d8195a01b40e76682dc285f8ab21.exe.bat

    Filesize

    182B

    MD5

    75ad80ba771b9be9077d50d6b746ac02

    SHA1

    999dfa0b83386ed1b39c9fcaa7286c9438804b25

    SHA256

    876727afc4b21ef9a237aba1f9f0f5af00766c20b4e3383436f24f1f0188fc72

    SHA512

    ff6bb8a115726e54d60d5b4b27ee358601ee96f3c2168f19db67e96d71c5fd563d57a2c70c78da79dc9d7d09c1ece645548bc5acafc8e50045dfba9fdc528b8e

  • C:\Windows\SysWOW64\comboausk.exe

    Filesize

    11KB

    MD5

    7235d8195a01b40e76682dc285f8ab21

    SHA1

    b8340dd133116f938f6a38c3ba6cfa5fc4c790d0

    SHA256

    f2090230c2c3ae208cb137ec72bea7536a598a9a20751b68451cb7412b60c1ea

    SHA512

    e3a084aa256b72d3696bfbc9720bb15ef165ed79a543dd168eadb4b38b8b760fe85b7a36ba0b589c712f8d6ad2f1db82a61e2e6046f099d4e7a93dae791dcce6

  • memory/2240-1-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/2240-4-0x0000000000030000-0x000000000003F000-memory.dmp

    Filesize

    60KB

  • memory/2240-10-0x0000000000030000-0x000000000003F000-memory.dmp

    Filesize

    60KB

  • memory/2240-20-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/2492-12-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB