General

  • Target

    II-tr.zip

  • Size

    3.3MB

  • Sample

    230428-f3rypaea4y

  • MD5

    31bda9e5492d7f9d1f0d1a434b5c97f2

  • SHA1

    7f74ffede6ac298a79d71fe7a1ec9453feb0f665

  • SHA256

    3990caad86822e7a9c22ffd0afbd63490819072efb96a2e8be793fafec164aa0

  • SHA512

    16f32ad906e05ab7d2e23b5bc1420bcc51f863d69c359b77d712d3ed902b8563b35158ccb7db050fc515cf9a57e85a371de658353ce53037a24333e8efb06568

  • SSDEEP

    49152:8eYlU+SKzTXt41EIqGRPBFdZWrKgKWWuL7kDXh/FgbJ1UoJjTrXuSFWa4lV5:8eYjSuGxBFbWmWWuXkd/SbJvD/FRG

Malware Config

Targets

    • Target

      II-tr.exe

    • Size

      3.3MB

    • MD5

      548bfc6c224d952ee4c0278390965ae9

    • SHA1

      bf9d43e9a90dcf49dcb34416f9dd8ea7b85e7c77

    • SHA256

      22dcbfdbfb5cbfb6f12dadaeccf570b8c8acc079afa585886af880e975f380ae

    • SHA512

      0deea8c5ee13313e3edb4db960fbef6351e0c01391bac44b081da067c23407f567238d46d792b34ee7fd35a92c6712c504426a645dbeb8d60f833f70bf2d01ac

    • SSDEEP

      98304:XHpb2umYIoREUsoGytV4n0oj8tb3gCHg1dWm:Xdlm7AEQGyD4E39Avt

    • 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.

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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

1
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Tasks