Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 15:57

General

  • Target

    CplusFINAL.exe

  • Size

    145KB

  • MD5

    b271e4fb0266235a4d268b4c6ed5881c

  • SHA1

    d32aabf8af8d07b0314f3939c0537b2ef16c8f53

  • SHA256

    8bbaee9d8425b3b3b116a7f16ff3b7fb64ad7dc0ceec11a6c6c73be5f9d97417

  • SHA512

    c54b539573a60302cf480fe330438543a41f8119605296a82eb20ab9b3236dd064ccba586ed302a800aa521ad1bbf7b0cb5af978a94b7c0a4d385021649b598e

  • SSDEEP

    768:4Yu25E9E//4M0uZcLdbTjVKZKfgm3Eh+3akivrA4/AKTQdOOOOqUBtme:VEIDiLdbTRF7EQ3acTKkt

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1182698637424349284/awwr4J0NH7Lcxt5MDhrJuq1MuzibBR6-hNZhjU4EvdU5d7RRRmNcFd4BUzrgBKMipWpd

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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CplusFINAL.exe
    "C:\Users\Admin\AppData\Local\Temp\CplusFINAL.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:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2816-0-0x0000000000470000-0x000000000049A000-memory.dmp

    Filesize

    168KB

  • memory/2816-1-0x00007FFF09960000-0x00007FFF0A421000-memory.dmp

    Filesize

    10.8MB

  • memory/2816-2-0x0000000000C40000-0x0000000000C50000-memory.dmp

    Filesize

    64KB

  • memory/2816-5-0x00007FFF09960000-0x00007FFF0A421000-memory.dmp

    Filesize

    10.8MB

  • memory/2816-6-0x0000000000C40000-0x0000000000C50000-memory.dmp

    Filesize

    64KB