General

  • Target

    24321d209c3bf74cdb557cc64717be9d9cad3dc8f2027224ea40a1e256cc3034

  • Size

    1.9MB

  • Sample

    240527-nfmpfsae63

  • MD5

    aa45b522e614440142c005c61c429656

  • SHA1

    37a2fbe4f4df4f2a97f05fcd0a403ba0c6aea183

  • SHA256

    24321d209c3bf74cdb557cc64717be9d9cad3dc8f2027224ea40a1e256cc3034

  • SHA512

    97ee9d1eeac971a0db1f0eaca3555f08105958cd8504af46256255d0905d5fa077f33fbe70e8f7455c76f0bc6846e5c64dab54c972cee0f99cf2babd43ed068e

  • SSDEEP

    49152:CdKfTn6vGJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

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

      24321d209c3bf74cdb557cc64717be9d9cad3dc8f2027224ea40a1e256cc3034

    • Size

      1.9MB

    • MD5

      aa45b522e614440142c005c61c429656

    • SHA1

      37a2fbe4f4df4f2a97f05fcd0a403ba0c6aea183

    • SHA256

      24321d209c3bf74cdb557cc64717be9d9cad3dc8f2027224ea40a1e256cc3034

    • SHA512

      97ee9d1eeac971a0db1f0eaca3555f08105958cd8504af46256255d0905d5fa077f33fbe70e8f7455c76f0bc6846e5c64dab54c972cee0f99cf2babd43ed068e

    • SSDEEP

      49152:CdKfTn6vGJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

    • 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