Analysis

  • max time kernel
    181s
  • max time network
    198s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 17:42

General

  • Target

    d3a1c888cb237bd60ab88e3eafd7d84e52a38ff19fab31b1d031ab4ca5e6ffc3.exe

  • Size

    72KB

  • MD5

    e44bbe2bb2ba810236fe71b43ddfb9f6

  • SHA1

    e7fd5d0c71853a62088b8ed9da5ad2143cd2f2ba

  • SHA256

    d3a1c888cb237bd60ab88e3eafd7d84e52a38ff19fab31b1d031ab4ca5e6ffc3

  • SHA512

    17362c38e5b1013460f05876e9cb565ecad6a2feeb2a41385a9b312c1a2dc2087e9d361641628b5ad4ca56b2367d481bcebe7539610f1738aa8fbbc266ab6789

  • SSDEEP

    768:qqqDkvWFN/nUe7IhsxO+UZd3fC+uu7s6Ib0eWzk/UYx9BHAGgYbbpA3mD:KDXTBnxlUZ580s6201hYx9BHAGgY2mD

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=13x0HqxKngLRTu4Qm1jt50xYvdMr428PV

xor.base64

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Guloader payload 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3a1c888cb237bd60ab88e3eafd7d84e52a38ff19fab31b1d031ab4ca5e6ffc3.exe
    "C:\Users\Admin\AppData\Local\Temp\d3a1c888cb237bd60ab88e3eafd7d84e52a38ff19fab31b1d031ab4ca5e6ffc3.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1436

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1436-134-0x0000000002890000-0x000000000289A000-memory.dmp
    Filesize

    40KB

  • memory/1436-135-0x00007FFC61E30000-0x00007FFC62025000-memory.dmp
    Filesize

    2.0MB

  • memory/1436-136-0x0000000002890000-0x000000000289A000-memory.dmp
    Filesize

    40KB