General

  • Target

    2e1529961c7f49fdf9fec312f8b449f916ba1413a7e53d05cf5edf29c010c917

  • Size

    2.0MB

  • Sample

    240525-hjvxcahg64

  • MD5

    55e5c193891b00af4d1ff10ed4cf7814

  • SHA1

    996fc9efbc958a9719dd395809c9eff30c970638

  • SHA256

    2e1529961c7f49fdf9fec312f8b449f916ba1413a7e53d05cf5edf29c010c917

  • SHA512

    b69f8d155ebbe95d471b94e2f37f1d8c981dff4728bb648f80d86c91755adf36fb5b9230b6a3600840bd10d583e7a76e16661be32a8eaa269f18e19b679b319f

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

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

      2e1529961c7f49fdf9fec312f8b449f916ba1413a7e53d05cf5edf29c010c917

    • Size

      2.0MB

    • MD5

      55e5c193891b00af4d1ff10ed4cf7814

    • SHA1

      996fc9efbc958a9719dd395809c9eff30c970638

    • SHA256

      2e1529961c7f49fdf9fec312f8b449f916ba1413a7e53d05cf5edf29c010c917

    • SHA512

      b69f8d155ebbe95d471b94e2f37f1d8c981dff4728bb648f80d86c91755adf36fb5b9230b6a3600840bd10d583e7a76e16661be32a8eaa269f18e19b679b319f

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • 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