Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    19-08-2024 16:11

General

  • Target

    GFX locator by 89_39.exe

  • Size

    41KB

  • MD5

    50448b99a6ab09d371ba1bb9f348bbb2

  • SHA1

    cdfa4b634d498af21946404397b9166c395d273e

  • SHA256

    44398ef8657a9fbb73eb1bfe7b3657241d0497318dcafabdd86669ee5dc32dc6

  • SHA512

    4fe0e40ba1396d8e238d5fef255fab22d88a1aaab005ca71cceaa55bfb2f061ea1997e2c0f3e82be3ca3a4bd65fae26edcd9dc4914d72f6d7aed4bcda2a12bd2

  • SSDEEP

    768:oscaIyIbubDIA3ruQw3uZleuWTj6KZKfgm3EhR/:vc1Zub3ueeuWTOF7Ez/

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1275113676453580880/9MyUKYUCniUZuZMT3Ww37_BxIGyZdN9irR0Ljml5MW18Tz7TxMIpOI_aDCPDu_qayZOt

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 2 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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GFX locator by 89_39.exe
    "C:\Users\Admin\AppData\Local\Temp\GFX locator by 89_39.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
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2168 -s 1340
      2⤵
        PID:2816

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2168-0-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

      Filesize

      4KB

    • memory/2168-1-0x0000000000A50000-0x0000000000A60000-memory.dmp

      Filesize

      64KB

    • memory/2168-2-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

      Filesize

      9.9MB

    • memory/2168-3-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

      Filesize

      4KB

    • memory/2168-4-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

      Filesize

      9.9MB