General

  • Target

    1e6da474e836fc49b5db4d5324ba44f784ed42b21019f89a439fa8086fd71927

  • Size

    2.0MB

  • Sample

    240527-g6tr5abg45

  • MD5

    f3fa120953f852dc95de617a6f2dc6b4

  • SHA1

    f6c223826fd3af1a4cdc6a562313670a9ac9c916

  • SHA256

    1e6da474e836fc49b5db4d5324ba44f784ed42b21019f89a439fa8086fd71927

  • SHA512

    e31ba4087eb1fac0511b55293e1769e3267ece05689cda155a04f6c144dff0cd99430438132b3958388165f8a47ff8d52d5116374dac903100e8d04ea11ba9b3

  • SSDEEP

    49152:OePpQElJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEltIuoITsdZ

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

      1e6da474e836fc49b5db4d5324ba44f784ed42b21019f89a439fa8086fd71927

    • Size

      2.0MB

    • MD5

      f3fa120953f852dc95de617a6f2dc6b4

    • SHA1

      f6c223826fd3af1a4cdc6a562313670a9ac9c916

    • SHA256

      1e6da474e836fc49b5db4d5324ba44f784ed42b21019f89a439fa8086fd71927

    • SHA512

      e31ba4087eb1fac0511b55293e1769e3267ece05689cda155a04f6c144dff0cd99430438132b3958388165f8a47ff8d52d5116374dac903100e8d04ea11ba9b3

    • SSDEEP

      49152:OePpQElJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEltIuoITsdZ

    • 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