Extracted

Extracted

• • Target

    ZrSoft_.rar

  • Size

    56.0MB

  • MD5

    1053c0dd0cdaac7ec1e6db6e2cf9ba67

  • SHA1

    f6774f85c071e43b0ee530bee08cb72942d46c1a

  • SHA256

    8f8ef83776282feb2487206099f276ce6a2b29f43428a96c081e92ebba6b6e5a

  • SHA512

    1e03aceab8232cb11f8bbd2f39cedbd0a218f69cb0657373229b7b4a6a6d243b46a2f0e7c8e60c22fc5428525e78c6c7803d60ee9861d0bf948d7e06b0707e81

  • SSDEEP

    1572864:dPhzJC8a2OhGI/Ag681b0gZmrlHCne0W8UiWPN9Cu26t:dPhzJFanhXAgr1g0neMSVO6t

  Score

  10^/10

  lummatroldeshbootkitdefense_evasiondiscoveryexecutionimpactpersistenceprivilege_escalationransomwarestealertrojanupx

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    stealerlumma

  • Lumma family

    lumma

  • Troldesh family

    troldesh

  • Troldesh, Shade, Encoder.858

    Troldesh is a ransomware spread by malspam.

    ransomwaretrojantroldesh

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Renames multiple (79) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Downloads MZ/PE file

  • Event Triggered Execution: Component Object Model Hijacking

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies system executable filetype association

    persistence

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

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

    discovery

  • 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.

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Checks system information in the registry

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

  • Suspicious use of SetThreadContext

  • UPX packed file

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

    upx
  behavioral1