General

  • Target

    b62f5879ce56b81ba6027b1313045c634e0c4dec3e698bbc8f0a3548b07978f4

  • Size

    2.0MB

  • Sample

    240527-hwf9qacg74

  • MD5

    3dd0be87ea4f48665bd3a20289d9bd05

  • SHA1

    cf52001a0dba4324af1c8cc0d007397a864208fb

  • SHA256

    b62f5879ce56b81ba6027b1313045c634e0c4dec3e698bbc8f0a3548b07978f4

  • SHA512

    956e6d73a1c790e51f8d2f40ab26325bba50542e920cff416f08a4075564e171e3131e41fbfaa3743e0ee7125c8924c3737c9832927362070c26382d1f9d35d7

  • SSDEEP

    49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

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

      b62f5879ce56b81ba6027b1313045c634e0c4dec3e698bbc8f0a3548b07978f4

    • Size

      2.0MB

    • MD5

      3dd0be87ea4f48665bd3a20289d9bd05

    • SHA1

      cf52001a0dba4324af1c8cc0d007397a864208fb

    • SHA256

      b62f5879ce56b81ba6027b1313045c634e0c4dec3e698bbc8f0a3548b07978f4

    • SHA512

      956e6d73a1c790e51f8d2f40ab26325bba50542e920cff416f08a4075564e171e3131e41fbfaa3743e0ee7125c8924c3737c9832927362070c26382d1f9d35d7

    • SSDEEP

      49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

    • 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