General

  • Target

    641c5268785785afcec1c2d9fb2e064e

  • Size

    7.6MB

  • Sample

    231219-vjammacda8

  • MD5

    641c5268785785afcec1c2d9fb2e064e

  • SHA1

    58a6e476f438d5ed07e0a915a9616a899faf66b3

  • SHA256

    37c3683ff2f470e568ab264bdd44ad29c8d131b27721779550f1bb1fab307135

  • SHA512

    b433c14cece23b4290dba78b9853c828a392f89e174eb1c8f015b9f4a87f9a31025966dfdc3856202e1229b54027e0f81cb1af01d53d98d85b5fa51faf47470b

  • SSDEEP

    196608:XlqItZ0+qX+wMIniQnUAsyBxEoNomipdrRgssp7VNbewe9W:1qIt3quo6uRDibrRg/5V5wM

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/895285874886082581/kvent_LjVhiSuZpi1xpHw0_0_UQpTlWtQASyfC1BqA0o4vdJmVYeXbtEedzdqvR7ukh-

Targets

    • Target

      641c5268785785afcec1c2d9fb2e064e

    • Size

      7.6MB

    • MD5

      641c5268785785afcec1c2d9fb2e064e

    • SHA1

      58a6e476f438d5ed07e0a915a9616a899faf66b3

    • SHA256

      37c3683ff2f470e568ab264bdd44ad29c8d131b27721779550f1bb1fab307135

    • SHA512

      b433c14cece23b4290dba78b9853c828a392f89e174eb1c8f015b9f4a87f9a31025966dfdc3856202e1229b54027e0f81cb1af01d53d98d85b5fa51faf47470b

    • SSDEEP

      196608:XlqItZ0+qX+wMIniQnUAsyBxEoNomipdrRgssp7VNbewe9W:1qIt3quo6uRDibrRg/5V5wM

    • Mercurial Grabber Stealer

      Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks