Analysis

  • max time kernel
    37s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 15:54

General

  • Target

    c80c515bb76f365f09e7d6da994b87a0dd345bf66b80166586b0ec00f5b68fb5.exe

  • Size

    120KB

  • MD5

    752e116fc065fbe3020f588ba3792905

  • SHA1

    9884444e73db29a778c8242c7ee60dabfb0890dd

  • SHA256

    c80c515bb76f365f09e7d6da994b87a0dd345bf66b80166586b0ec00f5b68fb5

  • SHA512

    9abd57f0b590a4a7c4e7ea978af3a2b83f13b2cebec225cddcc9fdd472bc40ce21a09a3df0fe4dafc298a502816d99be49f249f99bb479af40d74af1b7371a14

  • SSDEEP

    1536:gPCdf8P9hJgvGSYk6/UwRRyVBjPEe9M4g5LXrW4NJqmyR:gqdf8lH6dYktPEeOx5LXrW4W

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=1-VrX97PqXDbeB9KeqsCG-qdhiCcE6hfz

xor.base64

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\c80c515bb76f365f09e7d6da994b87a0dd345bf66b80166586b0ec00f5b68fb5.exe
    "C:\Users\Admin\AppData\Local\Temp\c80c515bb76f365f09e7d6da994b87a0dd345bf66b80166586b0ec00f5b68fb5.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1720

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1720-56-0x0000000000230000-0x000000000023C000-memory.dmp
    Filesize

    48KB

  • memory/1720-57-0x00000000778E0000-0x0000000077A89000-memory.dmp
    Filesize

    1.7MB