Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2024, 23:46

General

  • Target

    b9f831693fc6fb65eb0eb23278f2c8f7.exe

  • Size

    2.1MB

  • MD5

    b9f831693fc6fb65eb0eb23278f2c8f7

  • SHA1

    4f4f0fa6e66a4c007d6d659f776c3c69978c1d37

  • SHA256

    79f4f0ee684cd9effc344b0222ba84eac1f5ffb64709e3bbccff9c666908cccd

  • SHA512

    2e150487a3292d4a7c53dbf1534d793f2d69c32e2b54e9b3f223368ca75b2577cd296e957a99a3b86f06a276ed97a9ade586d13b204fa46bb4022569e04edfe5

  • SSDEEP

    49152:ZxE2Mfc8xmN3Aek03noj45wlDTKqnstLet3Lyo:TbeUJF3noxDeqnstLE7

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9f831693fc6fb65eb0eb23278f2c8f7.exe
    "C:\Users\Admin\AppData\Local\Temp\b9f831693fc6fb65eb0eb23278f2c8f7.exe"
    1⤵
    • Adds Run key to start application
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • NTFS ADS
    • Suspicious use of SetWindowsHookEx
    PID:2256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\905c0769f9a06c95a24ddf945\patcher.exe$

    Filesize

    1.5MB

    MD5

    a471ff2600ce6d9b8bf370b6e0631a25

    SHA1

    994769add17b2212235440ab5a0800aaa967a97b

    SHA256

    6cf06f46392bc5c4f3c229774ac0f301f91d2761d086ba1c80483328fb4f42d7

    SHA512

    1551a22e9f87810e0cfbbc5e41753b7b0d5d24f8c1522366eff6b1217d84a793effcecbbfd6471517d06b98a0d7a7401bed6aace27f0fbfc114ce38f533d7991

  • memory/2256-0-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2256-1-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB

  • memory/2256-679-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB