Analysis

  • max time kernel
    86s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2022 09:08

General

  • Target

    ImageLogger.exe

  • Size

    42KB

  • MD5

    5a6e12a51b20b8e3f08b69529bad9f98

  • SHA1

    cb491222797c96489c023a553f6eb81a9f499542

  • SHA256

    e2e85595fd953c1644618a0ba9178e9a68f1ce6d725017983961efbec6bebb6e

  • SHA512

    3c2c62f170ee83fe079b68c0b58f704d5676b2b51c64176c0cad3ef65b736b4fdbed2671a5a2ee7829cfce96676ad99b117cca3da43d236d5be78fe0e533646e

  • SSDEEP

    768:CRhAa4lMmkpb9mpVuZ4L7STjCKZKfgm3Eh/+:qAibIpbL7ST+F7El+

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/971211548544618506/14fNrE_WgfMdX-C1GRaEBZFXaq4YJP6FiYBNoZBmzVXQtH76hGEshw8B-Tczk-M6JPkm

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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ImageLogger.exe
    "C:\Users\Admin\AppData\Local\Temp\ImageLogger.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
    PID:4968
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4968 -s 2148
      2⤵
      • Program crash
      PID:1584
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 384 -p 4968 -ip 4968
    1⤵
      PID:4588

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4968-132-0x00000000007C0000-0x00000000007D0000-memory.dmp

      Filesize

      64KB

    • memory/4968-133-0x00007FFB002C0000-0x00007FFB00D81000-memory.dmp

      Filesize

      10.8MB

    • memory/4968-134-0x00007FFB002C0000-0x00007FFB00D81000-memory.dmp

      Filesize

      10.8MB