Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2023 20:19

General

  • Target

    91f1616aef66aaccd78af4ca336bc40a.exe

  • Size

    42KB

  • MD5

    91f1616aef66aaccd78af4ca336bc40a

  • SHA1

    ba1b71e5080465db3b000ba1d611c47dea35ae80

  • SHA256

    9e9e7ba74e9644038d96f5931d4e540622f115cb02b904b0ab12cac824b6fcc9

  • SHA512

    69b154c568577756cf8278e86c197a3f0b4dbcf9073d83bf287e508f58b9d87293f37c2528f7e4c0070cd87ca9ea991a9276fdc55e4ebc69ba36bada631b3950

  • SSDEEP

    768:0kxzKKqqI2SrZDfuZML4BUTjPKZKfgm3EhqBBZ:JNqH2oLL4BUTrF7E4X

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/893739851856367676/SNpO4YQixEgiS4X-hS2OHJ7YfJwBYH4-HxSDTj7Gc8o3tusEz_drp0Q2X_8SEmWp3zLg

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
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91f1616aef66aaccd78af4ca336bc40a.exe
    "C:\Users\Admin\AppData\Local\Temp\91f1616aef66aaccd78af4ca336bc40a.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:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2512-0-0x0000000000B30000-0x0000000000B40000-memory.dmp

    Filesize

    64KB

  • memory/2512-1-0x00007FFE9C7B0000-0x00007FFE9D271000-memory.dmp

    Filesize

    10.8MB

  • memory/2512-2-0x000000001B7E0000-0x000000001B7F0000-memory.dmp

    Filesize

    64KB

  • memory/2512-6-0x00007FFE9C7B0000-0x00007FFE9D271000-memory.dmp

    Filesize

    10.8MB