General

  • Target

    71102d8b805d7f9c06683c9b1a617bb0cae91f36ec093baf8814858a957524ca

  • Size

    2.0MB

  • Sample

    240526-y5ckwsah3w

  • MD5

    ffb6a9a4edef0ebc70feeea908831249

  • SHA1

    cb3d0dcc43ce6a71e6dc88f320e5e8b01c586b94

  • SHA256

    71102d8b805d7f9c06683c9b1a617bb0cae91f36ec093baf8814858a957524ca

  • SHA512

    d089cff6208b96a78571836b14a0f845007bc0b66e1d0efb72187fe038cde2ee1ba62558c472efc741d8090012a6d4d5b03078550c91109c60946a33d7107ecb

  • 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

      71102d8b805d7f9c06683c9b1a617bb0cae91f36ec093baf8814858a957524ca

    • Size

      2.0MB

    • MD5

      ffb6a9a4edef0ebc70feeea908831249

    • SHA1

      cb3d0dcc43ce6a71e6dc88f320e5e8b01c586b94

    • SHA256

      71102d8b805d7f9c06683c9b1a617bb0cae91f36ec093baf8814858a957524ca

    • SHA512

      d089cff6208b96a78571836b14a0f845007bc0b66e1d0efb72187fe038cde2ee1ba62558c472efc741d8090012a6d4d5b03078550c91109c60946a33d7107ecb

    • 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