Resubmissions

09-01-2021 22:47

210109-b1v8zws832 9

General

  • Target

    SecuriteInfo.com.BehavesLike.Win32.Trojan.jc.22567

  • Size

    610KB

  • Sample

    210109-b1v8zws832

  • MD5

    d83cd7278c47f4f3c7884eb9593a256c

  • SHA1

    026983b49e5356ed0497109de09ea43e5be9e54c

  • SHA256

    9986d7d421e26cce5a64a65a7f72b757043cbe7dfe2dd0b32f66d25203922415

  • SHA512

    5b84ede84c3c76795e45dcc1cc8e186be3f09d03f4965c8b88bda8294f2c0b9983dde4b37532773b07cafe3a1483c8aedd4c4230dbdc06714c5c7c097386fa1b

Malware Config

Targets

    • Target

      SecuriteInfo.com.BehavesLike.Win32.Trojan.jc.22567

    • Size

      610KB

    • MD5

      d83cd7278c47f4f3c7884eb9593a256c

    • SHA1

      026983b49e5356ed0497109de09ea43e5be9e54c

    • SHA256

      9986d7d421e26cce5a64a65a7f72b757043cbe7dfe2dd0b32f66d25203922415

    • SHA512

      5b84ede84c3c76795e45dcc1cc8e186be3f09d03f4965c8b88bda8294f2c0b9983dde4b37532773b07cafe3a1483c8aedd4c4230dbdc06714c5c7c097386fa1b

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

    • Blocklisted process makes network request

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks BIOS information in registry

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

    • Deletes itself

    • Drops startup file

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • 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 Enterprise v6

Tasks