General

  • Target

    4398bff3b9b04408be8cfd046fd1e273.exe

  • Size

    562KB

  • Sample

    210421-2sn839vs7n

  • MD5

    4398bff3b9b04408be8cfd046fd1e273

  • SHA1

    7f681591a8d99b24ef58a766fbc7938373213df8

  • SHA256

    3aecc29c243a0781768603d0a25b331963aaa1ef6a56f0677eb760a34bf2ea2c

  • SHA512

    8a07e640400acbd83305d741e58aab4cff9b1c4c23046beb6198c5022e929e8d6e009578a9c286c631e6c7fe33f265a6c6d0ff95b49e0dc244ac6d4fa6b7eb3a

Malware Config

Targets

    • Target

      4398bff3b9b04408be8cfd046fd1e273.exe

    • Size

      562KB

    • MD5

      4398bff3b9b04408be8cfd046fd1e273

    • SHA1

      7f681591a8d99b24ef58a766fbc7938373213df8

    • SHA256

      3aecc29c243a0781768603d0a25b331963aaa1ef6a56f0677eb760a34bf2ea2c

    • SHA512

      8a07e640400acbd83305d741e58aab4cff9b1c4c23046beb6198c5022e929e8d6e009578a9c286c631e6c7fe33f265a6c6d0ff95b49e0dc244ac6d4fa6b7eb3a

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Deletes itself

    • Loads dropped DLL

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks