Extracted

• • Target

    Trojan-Ransom.Win32.Zerber.gdda-72d4375c5fe2533acb5e378ddbd3c55f87c61003a492caffdcb40db988c49503.exe

  • Size

    148KB

  • MD5

    6ed3e3327246cc457d22bb92bd3bba8b

  • SHA1

    1329a6af26f16bb371782ff404d526eec1af9d22

  • SHA256

    72d4375c5fe2533acb5e378ddbd3c55f87c61003a492caffdcb40db988c49503

  • SHA512

    f6c5428adffc10294204e0b068510d91fced02bbe02158a21294ebd5baf249aff0264021cbf7b2b9b37533b1db4daa09113abaa84435f4aa7660849f9b9257f7

  • SSDEEP

    3072:gqMedjZ064qkGda5bFxs0ZUfBpfF6Mq6qUbHlVexC6exvLsBB16UVsh8iSd:+A0rAda5bFxvYptdHl4xV+Efuh

  Score

  10^/10

  badrabbitcerbermimikatzwannacrybootkitdiscoveryevasionpersistenceransomwarespywarestealerupxworm

  • BadRabbit

    Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

    ransomwarebadrabbit

  • Cerber

    Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    ransomwarecerber

  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

    mimikatz

  • Modifies WinLogon for persistence

    persistence

  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry

  • mimikatz is an open source tool to dump credentials on Windows

  • Disables RegEdit via registry modification

    evasion

  • Disables Task Manager via registry modification

    evasion

  • Executes dropped EXE

  • Modifies Windows Firewall

    evasion

  • Modifies extensions of user files

    Ransomware generally changes the extension on encrypted files.

    ransomware

  • UPX packed file

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

    upx

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • 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

  • Enumerates connected drives

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

  • Legitimate hosting services abused for malware hosting/C2

  • Modifies WinLogon

    persistence

  • Writes to the Master Boot Record (MBR)

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

    bootkitpersistence

  • Drops file in System32 directory

  behavioral1behavioral2