General

  • Target

    68e3ccc1ead2bae6d973ae544dfe40e26ebfe921dd64ba7eb3e7dd02dd47e496

  • Size

    2.0MB

  • Sample

    240525-y1e58ahd38

  • MD5

    a55c030143179643962478ca494889fc

  • SHA1

    455148c7aeb437f127923e3562c2018434fe629a

  • SHA256

    68e3ccc1ead2bae6d973ae544dfe40e26ebfe921dd64ba7eb3e7dd02dd47e496

  • SHA512

    e4797d039d80e28321f299ccd7d628af7b7c213795eac56dcfbbea57127a14c7aa211bf198155353912cdc1de4539326515937f1f8d64ed17108fe5e5668dcf6

  • SSDEEP

    49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      68e3ccc1ead2bae6d973ae544dfe40e26ebfe921dd64ba7eb3e7dd02dd47e496

    • Size

      2.0MB

    • MD5

      a55c030143179643962478ca494889fc

    • SHA1

      455148c7aeb437f127923e3562c2018434fe629a

    • SHA256

      68e3ccc1ead2bae6d973ae544dfe40e26ebfe921dd64ba7eb3e7dd02dd47e496

    • SHA512

      e4797d039d80e28321f299ccd7d628af7b7c213795eac56dcfbbea57127a14c7aa211bf198155353912cdc1de4539326515937f1f8d64ed17108fe5e5668dcf6

    • SSDEEP

      49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks