Analysis

  • max time kernel
    27s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-09-2022 17:18

General

  • Target

    hello.exe

  • Size

    42KB

  • MD5

    39866366d230bd8c69ccc4831949616e

  • SHA1

    74b9be8befe4d1d846b7960e9cbb9b4e22420e67

  • SHA256

    70b21b931557dafb9b305b1ea9a4f50474f41cbe5cb7ab5d09fba9dfece07908

  • SHA512

    01d1c23a3f99d8fd64196c4f66be4eff8067f11d76c772015e05caafbc579e75f544a6655a73d6ad5093da6e78ff96dbdf8044dea20d5d357fbfd51f5e1a0620

  • SSDEEP

    768:PmL9D0zgOfTs+ZexuZXLQqTjQPKZKfgm3EhjK:eLYfTNZ5LQqTwF7ElK

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1015309550255087727/Qs85ghop6Q1y0sToejjw_2npe9heNIKrkIxsfMCiUtkdgJQujOLGGfchOKmoR4PRG8pr

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.

  • 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hello.exe
    "C:\Users\Admin\AppData\Local\Temp\hello.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:2000
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2000 -s 1932
      2⤵
      • Program crash
      PID:432

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/432-55-0x0000000000000000-mapping.dmp

  • memory/2000-54-0x0000000000B40000-0x0000000000B50000-memory.dmp

    Filesize

    64KB