General

  • Target

    95699d62690eec8803bbcc30dedf26e8991a16ffa527f07e333f38296f7814b4

  • Size

    2.0MB

  • Sample

    240526-nnw8vsgg2z

  • MD5

    ded95b9d9c531800e69867c5317b9e96

  • SHA1

    5533ac0a158aee86b0c15e682dbf978177d5d95f

  • SHA256

    95699d62690eec8803bbcc30dedf26e8991a16ffa527f07e333f38296f7814b4

  • SHA512

    436cda241ed45b03a6e361b9cca7995bb91e2329274dab6f2bda5b245cf125b20125a1eb8470c47f71542cbd58f992407907eb1a0411e2df442b83fde48181d9

  • SSDEEP

    49152:OePpQEVJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEVtIuoITsdZ

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

      95699d62690eec8803bbcc30dedf26e8991a16ffa527f07e333f38296f7814b4

    • Size

      2.0MB

    • MD5

      ded95b9d9c531800e69867c5317b9e96

    • SHA1

      5533ac0a158aee86b0c15e682dbf978177d5d95f

    • SHA256

      95699d62690eec8803bbcc30dedf26e8991a16ffa527f07e333f38296f7814b4

    • SHA512

      436cda241ed45b03a6e361b9cca7995bb91e2329274dab6f2bda5b245cf125b20125a1eb8470c47f71542cbd58f992407907eb1a0411e2df442b83fde48181d9

    • SSDEEP

      49152:OePpQEVJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEVtIuoITsdZ

    • 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