General

  • Target

    592412dd24c6b0efa7e2a0b4b6292e83f6d27652a9e4bb39b74e670323e5d735.zip

  • Size

    3.3MB

  • Sample

    230321-r3cpjsbd35

  • MD5

    b912c12e948241743ae7f3fd87959739

  • SHA1

    629e2fae8d487a7976a6169e5539bac7f2f08712

  • SHA256

    7e57954c3eff6d664449e15c68278bb4acf834ee4efdc76d000f0ed51f0c03dc

  • SHA512

    73bbbf80a477aced0c683fc6bea2e8792504e5459d21e1404df152e4eefd85251cbf0721790cefc8197b2d42e2781345a13ef0de1eccee49aa4696f1dab6c682

  • SSDEEP

    98304:8x45Qlj5z+Ff5PAU77a4UHMt0V1xcL3w1VvQcFp:n5QTc5jAxc0nvQap

Malware Config

Targets

    • Target

      592412dd24c6b0efa7e2a0b4b6292e83f6d27652a9e4bb39b74e670323e5d735.exe

    • Size

      4.3MB

    • MD5

      dc420d217ceaa342947187224505a034

    • SHA1

      9dc25130ede5f985135bc3129b31802441c9729e

    • SHA256

      592412dd24c6b0efa7e2a0b4b6292e83f6d27652a9e4bb39b74e670323e5d735

    • SHA512

      d9151dab6e26f09841ce86e1d060ccc4e9dc019d3567195fc0a99ed86c497596179e138e0db3a656dfc18ee024fd4660e8036f44383604111d350af6c883f2ae

    • SSDEEP

      98304:/Hrl0QKys7P7CbM5zD6sILTjblMS0uJXAW0uQ9WCJ+SR8hR:/Ljhsi4osI3jhMSNJXA29CJF8hR

    • 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.

    • Loads dropped DLL

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks