Analysis

  • max time kernel
    144s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2023 10:20

General

  • Target

    NEAS.afc0e8ca805126afea6a435f63a87820.exe

  • Size

    210KB

  • MD5

    afc0e8ca805126afea6a435f63a87820

  • SHA1

    e85b1556917ae98d63ad0d2271caa33c1489c03a

  • SHA256

    e52400988a07ce80c2b963cff043e868dcd58b804304e878c882dd398c94a418

  • SHA512

    4d4dad888ff21a27c77738d96781b53b220642a6f1dbf54edb5ed6a5855e7a8205c21779a1dcfc9d3d97714bff5b3fa71d236a5f114e6c2d8600ae9e535c8e49

  • SSDEEP

    3072:KhS7VD4/EnzzMUD8u8EC45xRS5b7lIf3GYHfqR1hAtTD5DyXglREK0c2:dOizzb8uDxZCHlIZgEh5DyXglh

Score
7/10

Malware Config

Signatures

  • ASPack v2.12-2.42 2 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 17 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 1 IoCs
  • Modifies registry class 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.afc0e8ca805126afea6a435f63a87820.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.afc0e8ca805126afea6a435f63a87820.exe"
    1⤵
    • Modifies system executable filetype association
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\CRIWIQU.EXE
      C:\Windows\CRIWIQU.EXE
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\CRIWIQU.EXE

    Filesize

    211KB

    MD5

    9eb10f4fe50726bd93a9afc2eafab948

    SHA1

    78b9f56fe2798b1834d628061319b25d1debdd99

    SHA256

    1dbf42bfdff22ed8b465e6987ede02cbc0f5b0e74a15cf62faa320e68f51f8a9

    SHA512

    a66e03a1b2d0166a8c8904e4ac2cc125b51d8db75e9b0c4f50b1346d1419f2f4c0bc15eb41948dab749117eedd39faa6ce8f0a705c8a1be341cf4676a376cbd6

  • C:\Windows\CRIWIQU.EXE

    Filesize

    211KB

    MD5

    9eb10f4fe50726bd93a9afc2eafab948

    SHA1

    78b9f56fe2798b1834d628061319b25d1debdd99

    SHA256

    1dbf42bfdff22ed8b465e6987ede02cbc0f5b0e74a15cf62faa320e68f51f8a9

    SHA512

    a66e03a1b2d0166a8c8904e4ac2cc125b51d8db75e9b0c4f50b1346d1419f2f4c0bc15eb41948dab749117eedd39faa6ce8f0a705c8a1be341cf4676a376cbd6

  • memory/2668-28-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-27-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-35-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-21-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-22-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-23-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2668-24-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-25-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-26-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-19-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2668-34-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-29-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-30-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-31-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2668-33-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/3068-0-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

  • memory/3068-20-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB