General

  • Target

    0e4673760c64a0792815f9d9562f47346818e54eb29cf1e1d39410fca5f8e00c.exe

  • Size

    423KB

  • Sample

    240521-zrlr3sac38

  • MD5

    11cb6973434f9c3d70775b9c8fbf048b

  • SHA1

    e3b4918d477e0bcc9a6da4ca9eef0c960ec32278

  • SHA256

    0e4673760c64a0792815f9d9562f47346818e54eb29cf1e1d39410fca5f8e00c

  • SHA512

    428d5c125cc9552e90303bad79762f600b8f45618c852c88ca2c71f5f3eccdebdc7e669df3da97c5bdc8d7aa2e442a4aee2c88e3cf741c092ab4324c0174f0fa

  • SSDEEP

    6144:tqiWRrCHLIo4V1p+a3VyTJQgCb5ntM03fkJSWcUquA+Mb26:/HLIoCmQfntL3fkJDcUq3+

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      0e4673760c64a0792815f9d9562f47346818e54eb29cf1e1d39410fca5f8e00c.exe

    • Size

      423KB

    • MD5

      11cb6973434f9c3d70775b9c8fbf048b

    • SHA1

      e3b4918d477e0bcc9a6da4ca9eef0c960ec32278

    • SHA256

      0e4673760c64a0792815f9d9562f47346818e54eb29cf1e1d39410fca5f8e00c

    • SHA512

      428d5c125cc9552e90303bad79762f600b8f45618c852c88ca2c71f5f3eccdebdc7e669df3da97c5bdc8d7aa2e442a4aee2c88e3cf741c092ab4324c0174f0fa

    • SSDEEP

      6144:tqiWRrCHLIo4V1p+a3VyTJQgCb5ntM03fkJSWcUquA+Mb26:/HLIoCmQfntL3fkJDcUq3+

    • 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.

    • 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