General

  • Target

    c0a58da572570055db7ac284ead96c0afbe4e06820d04fe34dd4fbedea3f205b

  • Size

    2.0MB

  • Sample

    240527-d9g1yseh71

  • MD5

    19a0523bd86519eae294c085bb4e7877

  • SHA1

    99c0714812a476adead887b0c4f95faad9976dc2

  • SHA256

    c0a58da572570055db7ac284ead96c0afbe4e06820d04fe34dd4fbedea3f205b

  • SHA512

    8b6e5eea34201950fe067db74a7c1949e6ef38c10082b32b5632023b8755243b840ecdb1d12c427656c05d1e05a0d809ae00baa9a8bdc7836862adf70d54c334

  • SSDEEP

    49152:OePpQEdJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEdtIuoITsdZ

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

      c0a58da572570055db7ac284ead96c0afbe4e06820d04fe34dd4fbedea3f205b

    • Size

      2.0MB

    • MD5

      19a0523bd86519eae294c085bb4e7877

    • SHA1

      99c0714812a476adead887b0c4f95faad9976dc2

    • SHA256

      c0a58da572570055db7ac284ead96c0afbe4e06820d04fe34dd4fbedea3f205b

    • SHA512

      8b6e5eea34201950fe067db74a7c1949e6ef38c10082b32b5632023b8755243b840ecdb1d12c427656c05d1e05a0d809ae00baa9a8bdc7836862adf70d54c334

    • SSDEEP

      49152:OePpQEdJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEdtIuoITsdZ

    • 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