Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 17:57

General

  • Target

    KEK_1.1.18.exe

  • Size

    202KB

  • MD5

    5dd7a61a2f110d248e979ca48d2f676e

  • SHA1

    afaf9f69d3839c23099f006e30c362e5dbc06048

  • SHA256

    5a37e31fa5d37c93706a2c7be69cf9b9fa2a96e5401f46411bb53668d734ecfe

  • SHA512

    807a05a8e59707ef0e3321fe912f6f78b6e42ea9eb6da4359f71a51c92b7f852f8b38dd70b98c26f1d92b95e6e5c5f2d09db6b8e14d94d5036a7e168c592cdf9

  • SSDEEP

    1536:tfxlL9rcFLNUTmF7E3N4ppbMiQ1UbeQYA+CmDCD80j9iIwOTFueIP1C4JxXFw17M:zR9rcFLiTmF7E3Nozulm9

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/955190997715943434/C4jt_m-oZnLO-3hIIy70BQamYK6_L-s9wiHjwYe2nDpBLu3zBLDGcFMoPwmkmsSElIIE

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\KEK_1.1.18.exe
    "C:\Users\Admin\AppData\Local\Temp\KEK_1.1.18.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:3412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3412-0-0x0000000000D30000-0x0000000000D68000-memory.dmp

    Filesize

    224KB

  • memory/3412-1-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

    Filesize

    10.8MB

  • memory/3412-2-0x000000001BA70000-0x000000001BA80000-memory.dmp

    Filesize

    64KB

  • memory/3412-8-0x000000001D630000-0x000000001D732000-memory.dmp

    Filesize

    1.0MB

  • memory/3412-9-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

    Filesize

    10.8MB