General

  • Target

    6635fb0d8619a28254c14f16c8f52bc3.exe

  • Size

    636KB

  • Sample

    210423-s3bvlxm7bs

  • MD5

    6635fb0d8619a28254c14f16c8f52bc3

  • SHA1

    dcfefcf3d063323a50458ce2b375d1bdf900ac98

  • SHA256

    a0f86b221315031395511a0f54f29a14af07426c325a17c655bdca52e446e61c

  • SHA512

    a2aa7feb634259ffc207dbd20a9d0b6ac7f20f0e9a73e19b0eea69d3e2986ed32a15be4a6cc43f292c91b0e09dce1277ccf214e8bd2cde86611c8acf0ad1db5e

Malware Config

Targets

    • Target

      6635fb0d8619a28254c14f16c8f52bc3.exe

    • Size

      636KB

    • MD5

      6635fb0d8619a28254c14f16c8f52bc3

    • SHA1

      dcfefcf3d063323a50458ce2b375d1bdf900ac98

    • SHA256

      a0f86b221315031395511a0f54f29a14af07426c325a17c655bdca52e446e61c

    • SHA512

      a2aa7feb634259ffc207dbd20a9d0b6ac7f20f0e9a73e19b0eea69d3e2986ed32a15be4a6cc43f292c91b0e09dce1277ccf214e8bd2cde86611c8acf0ad1db5e

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Deletes itself

    • Loads dropped DLL

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks