Analysis

  • max time kernel
    50s
  • max time network
    55s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02-09-2022 15:28

General

  • Target

    die.exe

  • Size

    41KB

  • MD5

    bbd2b2cdb72820471a105eb2910a39d8

  • SHA1

    0ae6db33f046fad70f89443315c1dde51431368a

  • SHA256

    c01dc523e597451fe8f73584c99861e21a32ef31f318822788a49aa02508b874

  • SHA512

    3c72b6ef6cea90d9ceab8bf64bfd173dfbaa3bcf9c05a9f10e9db5e0a2f824fe9c3a5e0243a68597416b669777a722ab9808f3dd6b2f03296ce8825c079972c8

  • SSDEEP

    768:XscGoAxWdPN+w2uZLeTWTjSKZKfgm3Ehzk:8cVdPNxeTWT+F7EVk

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/981864059811029013/q8kMiA1r1VyUs5iQIOc8K2zlG-qrhCKOk411HOiGAnGzZDpDLuXMu6Fmgc0zL0FelZ_K

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.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\die.exe
    "C:\Users\Admin\AppData\Local\Temp\die.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:1464
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1464 -s 1884
      2⤵
      • Program crash
      PID:1980
  • C:\Windows\system32\mstsc.exe
    "C:\Windows\system32\mstsc.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of FindShellTrayWindow
    PID:804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/804-56-0x000007FEFB5E1000-0x000007FEFB5E3000-memory.dmp

    Filesize

    8KB

  • memory/804-57-0x000007FEEE841000-0x000007FEEE843000-memory.dmp

    Filesize

    8KB

  • memory/1464-54-0x00000000009D0000-0x00000000009E0000-memory.dmp

    Filesize

    64KB

  • memory/1980-55-0x0000000000000000-mapping.dmp