Resubmissions

20-09-2022 07:11

220920-hz9ensfggl 10

Analysis

  • max time kernel
    32s
  • max time network
    24s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-09-2022 07:11

General

  • Target

    gamesense.pub.exe

  • Size

    42KB

  • MD5

    63ebbaeec8841811bd9fac6921e329f9

  • SHA1

    35120cd7f882f6598c9d575d3784322ad89b0f11

  • SHA256

    9144209e3c8d2c05172343853f4f8a5ab8898bae08e1bc21b79bbacb4f7eefa5

  • SHA512

    b6b34380d8f7506e6401662c1333e00b29fcc792f6f752faad0c343b15757087d3e4c40a8dce6d26d363fdec1e14c97e4d31c95045acd9e1b7d0cbc4b18f3f22

  • SSDEEP

    768:i/VfW+WRXfzuZoLoFTjXbKZKfgm3Ehl+:iVx4fFLoFTrbF7EH+

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/988860387116056626/qGMU_xCcvq7I337gTLsPXC3czlwl9dSVfB2QUWYPAbg5aeuREHjAQCmrMIBwrQMrVWt4

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.

  • 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.

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

    SCSI 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gamesense.pub.exe
    "C:\Users\Admin\AppData\Local\Temp\gamesense.pub.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)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1424 -s 1920
      2⤵
      • Program crash
      PID:1608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1424-54-0x00000000013E0000-0x00000000013F0000-memory.dmp

    Filesize

    64KB

  • memory/1608-55-0x0000000000000000-mapping.dmp