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Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-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 3 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.

  • Modifies registry class 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 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
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\odt\SKH.EXE
      C:\odt\SKH.EXE
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      PID:4756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\XBXDWN.EXE

    Filesize

    211KB

    MD5

    6de114fe5a09b83ecf392a83d25d350a

    SHA1

    937cb6f9bd32afa0921ef8badca9e5baa0ef9989

    SHA256

    f5de191d7c6dec75f626dd07d6f985223225f2efb3f705922a2c63c6402c1f16

    SHA512

    af1e87c4489d79f2f0716e65ce62f9c9eccff8177f78dbe5be839174db9b4edf0e4d9094ded41e6902db66827ed281f439a7e75572e63eaa55b2f081f3ce94d2

  • C:\odt\SKH.EXE

    Filesize

    211KB

    MD5

    3994411261b7b090d3d44faa01117c99

    SHA1

    f8a23a98ef0c809eb449f2d0d30963336402bdee

    SHA256

    d7599f6b93c81965a04c435f4c6879fc117feae514145fe8df25f67335340e1c

    SHA512

    981c8b097c9a0374fa16fe26ce80ad1a40a3ebe5c293c906959b38a5e206ea09330702fdbad7ce6af9f295023a20e9a24d01cde140b487b85e39d0554568c37c

  • C:\odt\SKH.EXE

    Filesize

    211KB

    MD5

    3994411261b7b090d3d44faa01117c99

    SHA1

    f8a23a98ef0c809eb449f2d0d30963336402bdee

    SHA256

    d7599f6b93c81965a04c435f4c6879fc117feae514145fe8df25f67335340e1c

    SHA512

    981c8b097c9a0374fa16fe26ce80ad1a40a3ebe5c293c906959b38a5e206ea09330702fdbad7ce6af9f295023a20e9a24d01cde140b487b85e39d0554568c37c

  • memory/1616-0-0x0000000002320000-0x0000000002321000-memory.dmp

    Filesize

    4KB

  • memory/1616-21-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-26-0x0000000000640000-0x0000000000641000-memory.dmp

    Filesize

    4KB

  • memory/4756-24-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-25-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-22-0x0000000000640000-0x0000000000641000-memory.dmp

    Filesize

    4KB

  • memory/4756-27-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-29-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-30-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-31-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-33-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-34-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-35-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-36-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4756-37-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB