General

  • Target

    1251427153a0a56efb46ae979c7e3b94604349bab072b1df4a4be7b5edd3fc20

  • Size

    2.0MB

  • Sample

    240527-hbwtnsca52

  • MD5

    b7255a055f1edf82e40c03860305fdbb

  • SHA1

    56c3b7516759bdc20c054b7f0eaf5e65acfe2b5c

  • SHA256

    1251427153a0a56efb46ae979c7e3b94604349bab072b1df4a4be7b5edd3fc20

  • SHA512

    3d317757383d9564022ee7f47a1b182a8214c4446250657b374de88457796642641a9965c07d3ac3c77c5333e527716cdab0d67f00d014d1bd62bdf030f99b02

  • SSDEEP

    49152:OePpQENJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQENtIuoITsdZ

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

      1251427153a0a56efb46ae979c7e3b94604349bab072b1df4a4be7b5edd3fc20

    • Size

      2.0MB

    • MD5

      b7255a055f1edf82e40c03860305fdbb

    • SHA1

      56c3b7516759bdc20c054b7f0eaf5e65acfe2b5c

    • SHA256

      1251427153a0a56efb46ae979c7e3b94604349bab072b1df4a4be7b5edd3fc20

    • SHA512

      3d317757383d9564022ee7f47a1b182a8214c4446250657b374de88457796642641a9965c07d3ac3c77c5333e527716cdab0d67f00d014d1bd62bdf030f99b02

    • SSDEEP

      49152:OePpQENJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQENtIuoITsdZ

    • 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