General

  • Target

    Install.7z

  • Size

    5.3MB

  • Sample

    230201-ywfaesbg66

  • MD5

    9ef4a2f3dab1ca8a83f6ec9e8c2e4ed5

  • SHA1

    47848e9dbeae8933f9d92840553be133e7ca1a76

  • SHA256

    26b90207a3f4acac8a5b17412c40ad4af52c2c04eeded067fe4caa874290e71d

  • SHA512

    5f287b1f31f9f68f1c2c7e7e3661c4c2e217857fe605e2552b599a25cf3790f836d33312b317a57eaaf5ede19578df8c45277ef06e0c808af6b69fd8f329efa5

  • SSDEEP

    98304:Nnn4kXPHl8t7lfbQMrzXrs1ezAtp+5NsqC0GdgChiI:Nn4IPHlOlDQMrzbse0tg5NK0grX

Malware Config

Targets

    • Target

      Install_1.exe

    • Size

      133.0MB

    • MD5

      cdf1214016bc5a7bf6d095d749203870

    • SHA1

      d5c52e904ee49618b71623974104928ecb54fd2a

    • SHA256

      5705493c9c14b78f5e6ab80bd1e9ccb0e64896a9040676794fa5a19c63e52533

    • SHA512

      c4d1e513e394dff89581d775708b82df2abc71c840ac6fc7f0756dc9d69351a72a70c8c0d302a913a2f04e76bd93e68527fab2f74f3695d72ce4d0b5d17a678c

    • SSDEEP

      196608:wA9NyhYpien+H1uZ1r+LyVHE//wpiP/U0:wA9NyhRen+H1uTWIp90

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Tasks