Analysis

  • max time kernel
    129s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20240214-en
  • resource tags

    arch:x64arch:x86image:win10-20240214-enlocale:en-usos:windows10-1703-x64system
  • submitted
    31-03-2024 01:42

General

  • Target

    thisistotallyanexternalandnotagrabber.exe

  • Size

    41KB

  • MD5

    a92b14abd6015ce47403388ab1a9fb9a

  • SHA1

    1e7830c4c5edf89473eb4f5ec923b03fedbaa3b9

  • SHA256

    909281cede68e81a55cbcc5d6cc536bbe8cedc034246a975a78172e04de51c39

  • SHA512

    aa9bba8e96d1ac2541cb5ec32ee2deaf9e1904623b0eddb95eb9995f1fd50b08b3f0a62e7d0ad3369740e753bd3302e0c2a38bf23be61cb7b5bcb3072258e89d

  • SSDEEP

    768:jscaIyImIXpC5QwxuZieCWTjRKZKfgm3EhB9:4c1IdbeCWT1F7En9

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1222329423873966182/DRznR59hHy0b0d8L7ISycdQ9ErUE8o5nTrmAOPhbaKWBrKrckdopR72WpGmxgfeuqdTH

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 4 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\thisistotallyanexternalandnotagrabber.exe
    "C:\Users\Admin\AppData\Local\Temp\thisistotallyanexternalandnotagrabber.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
    PID:192

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/192-0-0x0000000000540000-0x0000000000550000-memory.dmp
    Filesize

    64KB

  • memory/192-1-0x00007FF91E2B0000-0x00007FF91EC9C000-memory.dmp
    Filesize

    9.9MB

  • memory/192-2-0x000000001B010000-0x000000001B020000-memory.dmp
    Filesize

    64KB

  • memory/192-5-0x00007FF91E2B0000-0x00007FF91EC9C000-memory.dmp
    Filesize

    9.9MB

  • memory/192-6-0x000000001B010000-0x000000001B020000-memory.dmp
    Filesize

    64KB