General

  • Target

    2515bbcb2d80ff3ed0de8db1fc983e2235b9c6a36edbc2f7841a2e614677a315

  • Size

    2.0MB

  • Sample

    240527-f8wttshg3t

  • MD5

    0602ad22fd65933db494a7c91b7dd569

  • SHA1

    0c637d0568e0c77c9054a9be102b346953f21e39

  • SHA256

    2515bbcb2d80ff3ed0de8db1fc983e2235b9c6a36edbc2f7841a2e614677a315

  • SHA512

    b7e1bad363becafa238e31225a150de64d798608e47f0716c681d74d6e799dbd1bd558b98dfdd2f5cf7b05c601c49607a7c9653ca9490b47a342eb5a4ff69343

  • 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

      2515bbcb2d80ff3ed0de8db1fc983e2235b9c6a36edbc2f7841a2e614677a315

    • Size

      2.0MB

    • MD5

      0602ad22fd65933db494a7c91b7dd569

    • SHA1

      0c637d0568e0c77c9054a9be102b346953f21e39

    • SHA256

      2515bbcb2d80ff3ed0de8db1fc983e2235b9c6a36edbc2f7841a2e614677a315

    • SHA512

      b7e1bad363becafa238e31225a150de64d798608e47f0716c681d74d6e799dbd1bd558b98dfdd2f5cf7b05c601c49607a7c9653ca9490b47a342eb5a4ff69343

    • 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