General

  • Target

    e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd

  • Size

    2.0MB

  • Sample

    240525-n7pywshd53

  • MD5

    65f9a7c8cf59598e48faceeffeb4a0bd

  • SHA1

    7ba1258397afbc5579e95089069594acaddc5f19

  • SHA256

    e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd

  • SHA512

    e4d87e73c2e1755b3784d818a938d9af2114c5ec3811dafb67fc4e19c1435c21a436aacf224b55d0dc15fe4295a14421f0fe597a3c55e6f8f1b80711ecacf292

  • SSDEEP

    49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

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

      e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd

    • Size

      2.0MB

    • MD5

      65f9a7c8cf59598e48faceeffeb4a0bd

    • SHA1

      7ba1258397afbc5579e95089069594acaddc5f19

    • SHA256

      e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd

    • SHA512

      e4d87e73c2e1755b3784d818a938d9af2114c5ec3811dafb67fc4e19c1435c21a436aacf224b55d0dc15fe4295a14421f0fe597a3c55e6f8f1b80711ecacf292

    • SSDEEP

      49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

    • 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