Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    18-07-2024 14:44

General

  • Target

    Emma Myers.exe

  • Size

    46KB

  • MD5

    289bdcc583f66bc2ab3fe1a895114343

  • SHA1

    d554262edf5ed2ddb4bc23443534e27405b1b56d

  • SHA256

    5edc29fb7df66d381fdb1adaa5b5ec26170ea8124a5f0da2289ddc65c5550cba

  • SHA512

    7d319ec5d3ab93e6394931bade362888e8a5bed0064b5dc0684e3ab51ee5855ab43333b9635766b6a39c6d148ca58cfdcc5f62cfb00b2bd6e55355039f206d63

  • SSDEEP

    768:v85X5E9E//4M3uZDLbXTjjKZKfgm3EhI2Q:KEIDQLbXT/F7Ey2Q

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1262520435153834075/CvBwqvdUgnrCm0O5hKu1bImnsNyW2z_IucJM7AQnxG7081BG46HlDBYHQ7RtDs-a0Bf3

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Emma Myers.exe
    "C:\Users\Admin\AppData\Local\Temp\Emma Myers.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
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3056 -s 1808
      2⤵
        PID:2836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3056-0-0x000007FEF5C03000-0x000007FEF5C04000-memory.dmp

      Filesize

      4KB

    • memory/3056-1-0x0000000000CC0000-0x0000000000CD0000-memory.dmp

      Filesize

      64KB

    • memory/3056-2-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

      Filesize

      9.9MB

    • memory/3056-3-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

      Filesize

      9.9MB