General

  • Target

    Destination Document pdf.exe

  • Size

    620KB

  • Sample

    230131-gzwyxage5z

  • MD5

    aa62920130adcf9c00c3c8af9b059b23

  • SHA1

    c579411fefdf3006dc176b193f6dda8b07da0fe6

  • SHA256

    09454cff8e1b6d8a06a3731f417fc2e86d61cffccf2cab60064e7f7a1672f4b4

  • SHA512

    89e08b13c3e21f729fec3523ce412a513da90c24d4eb6ee5cdc08ceebc6b1e3c13e3ca4102bdb4e87322555b0b1a810eefb2eb8c0a3dd5603208e63994bdc086

  • SSDEEP

    12288:b7EWNDJccwIWYh7j7TY3POh48Wfb9g5stErYyqJNBUcNjRtBnMAr8D:MUlyYtj7EojiB5Er/qPBUsNfCD

Malware Config

Targets

    • Target

      Destination Document pdf.exe

    • Size

      620KB

    • MD5

      aa62920130adcf9c00c3c8af9b059b23

    • SHA1

      c579411fefdf3006dc176b193f6dda8b07da0fe6

    • SHA256

      09454cff8e1b6d8a06a3731f417fc2e86d61cffccf2cab60064e7f7a1672f4b4

    • SHA512

      89e08b13c3e21f729fec3523ce412a513da90c24d4eb6ee5cdc08ceebc6b1e3c13e3ca4102bdb4e87322555b0b1a810eefb2eb8c0a3dd5603208e63994bdc086

    • SSDEEP

      12288:b7EWNDJccwIWYh7j7TY3POh48Wfb9g5stErYyqJNBUcNjRtBnMAr8D:MUlyYtj7EojiB5Er/qPBUsNfCD

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Command and Control

Web Service

1
T1102

Tasks