General

  • Target

    8204eead96a5c6953df4a0353c7e8263630b7287fb3a96a992433ebbf0a8fc90

  • Size

    2.0MB

  • Sample

    240526-d27lmsea66

  • MD5

    cb3a679b4882457dd406d44a4482a016

  • SHA1

    7ea49622c734cafeaac1f9ad8f063d0fb6e2ce10

  • SHA256

    8204eead96a5c6953df4a0353c7e8263630b7287fb3a96a992433ebbf0a8fc90

  • SHA512

    8d2c9bbaf555e5408d8a9c01dc8da3cd9ec8b6b72b7f11d47e48945422eed36f98e973fcb5d048ada6a8f8713693e915085682e701fa22f9a409d7b5d374dad2

  • SSDEEP

    49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ

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

      8204eead96a5c6953df4a0353c7e8263630b7287fb3a96a992433ebbf0a8fc90

    • Size

      2.0MB

    • MD5

      cb3a679b4882457dd406d44a4482a016

    • SHA1

      7ea49622c734cafeaac1f9ad8f063d0fb6e2ce10

    • SHA256

      8204eead96a5c6953df4a0353c7e8263630b7287fb3a96a992433ebbf0a8fc90

    • SHA512

      8d2c9bbaf555e5408d8a9c01dc8da3cd9ec8b6b72b7f11d47e48945422eed36f98e973fcb5d048ada6a8f8713693e915085682e701fa22f9a409d7b5d374dad2

    • SSDEEP

      49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ

    • 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