Extracted

• • Target

    RNSM00335.7z

  • Size

    10.9MB

  • MD5

    516de23b832b9ab382824d9ee7284cc5

  • SHA1

    6c8bdbe461a4411a3a9e9fb55c82975d7d46c5ef

  • SHA256

    78513de1a3f011868e975a9bce64cea9a520a2bd7609d862fed94ae3518f22ea

  • SHA512

    f9df547b6577fffe1728b7cb100f8c1b4835b3f52304afb6021c2af228de78448cad374c1327cfd34dc4dc86d3878d87514510c5cdca4b7f39d748179331db90

  • SSDEEP

    196608:YoHzR0FpxAbMJikHBxdg6j6glUoKMMD6Kk2c+7RB62mrvs2WSrqKGlrvTZz3umT/:YempxnJimB3/j6roPsB6vjs2xr7WrvFD

  Score

  10^/10

  gandcrabadwarebackdoorbootkitcredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealertrojanupx

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

    ransomwarebackdoorgandcrab

  • Gandcrab family

    gandcrab

  • UAC bypass

    evasiontrojan

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Renames multiple (307) files with added filename extension

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

    ransomware

  • Drops file in Drivers directory

  • Credentials from Password Stores: Windows Credential Manager

    Suspicious access to Credentials History.

    credential_accessstealer

  • Drops startup 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

  • Reads user/profile data of web browsers

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

    spywarestealer

  • 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

  • Checks whether UAC is enabled

    evasiontrojan

  • Drops desktop.ini file(s)

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware

  • 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

  • AutoIT Executable

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  • UPX packed file

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

    upx
  behavioral1