General

  • Target

    1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020

  • Size

    2.0MB

  • Sample

    240523-ds9dwacb35

  • MD5

    59358f6704a41dcee99862134b1a7e8c

  • SHA1

    dc9dcd9a410c4c906831221ae35f9e0491942f8e

  • SHA256

    1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020

  • SHA512

    ba5e1ab503013fa1243518a5c801c81a222c8643f490662f33333e33a8bb8ae5feaa13551478ceec28afa7c78fbb61ce6ca8ce1ed6323f3127e0142e4e0dbaa8

  • SSDEEP

    49152:7QzHt472DTJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtZtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020

    • Size

      2.0MB

    • MD5

      59358f6704a41dcee99862134b1a7e8c

    • SHA1

      dc9dcd9a410c4c906831221ae35f9e0491942f8e

    • SHA256

      1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020

    • SHA512

      ba5e1ab503013fa1243518a5c801c81a222c8643f490662f33333e33a8bb8ae5feaa13551478ceec28afa7c78fbb61ce6ca8ce1ed6323f3127e0142e4e0dbaa8

    • SSDEEP

      49152:7QzHt472DTJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtZtIuoITsdZ

    • 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