General

  • Target

    95b9ac532ae414d29f194b91c53a46bed67ec07fc5a5d2532294d8dca81e2cd4

  • Size

    2.0MB

  • Sample

    240522-1c7axahe3x

  • MD5

    01cb66e008ba99f01c22c0c1f912df23

  • SHA1

    a3ef6da36e31a90619e5e7542e95e64ada780462

  • SHA256

    95b9ac532ae414d29f194b91c53a46bed67ec07fc5a5d2532294d8dca81e2cd4

  • SHA512

    1f810334d461f6283df74305df03e8405b60110ee3cb799d7dd376b578edce4314d80ce056170781973984a91c46c13685059fe0d433bed952204370451a7cb9

  • SSDEEP

    49152:7QzHt472DFJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt3tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      95b9ac532ae414d29f194b91c53a46bed67ec07fc5a5d2532294d8dca81e2cd4

    • Size

      2.0MB

    • MD5

      01cb66e008ba99f01c22c0c1f912df23

    • SHA1

      a3ef6da36e31a90619e5e7542e95e64ada780462

    • SHA256

      95b9ac532ae414d29f194b91c53a46bed67ec07fc5a5d2532294d8dca81e2cd4

    • SHA512

      1f810334d461f6283df74305df03e8405b60110ee3cb799d7dd376b578edce4314d80ce056170781973984a91c46c13685059fe0d433bed952204370451a7cb9

    • SSDEEP

      49152:7QzHt472DFJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt3tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks