General

  • Target

    dubi.exe

  • Size

    827KB

  • Sample

    210311-k2lez4ns1a

  • MD5

    648f0d37b65ec97fd1754d53d78a6a24

  • SHA1

    ba9c8a94d83f66f93523345aa7fe266cf9769a0e

  • SHA256

    894efce31cc70924a097c89b02eb544cb1303268b569f39ccbfba492d6c2b166

  • SHA512

    e222e2ef11a00605575bc8431587f9e89dbd6c3579f43cd36c97527385c85e837f831a583ede7a4c3413f6c0c8ff2139c4b1e4821224c6e4f57eb5cd18fe8410

Malware Config

Targets

    • Target

      dubi.exe

    • Size

      827KB

    • MD5

      648f0d37b65ec97fd1754d53d78a6a24

    • SHA1

      ba9c8a94d83f66f93523345aa7fe266cf9769a0e

    • SHA256

      894efce31cc70924a097c89b02eb544cb1303268b569f39ccbfba492d6c2b166

    • SHA512

      e222e2ef11a00605575bc8431587f9e89dbd6c3579f43cd36c97527385c85e837f831a583ede7a4c3413f6c0c8ff2139c4b1e4821224c6e4f57eb5cd18fe8410

    • Taurus Stealer

      Taurus is an infostealer first seen in June 2020.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • 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 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 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

5
T1005

Tasks