Resubmissions

01-04-2023 11:40

230401-nta8kshg65 10

01-04-2023 11:34

230401-npeefabb6w 7

General

  • Target

    Roblox Evon Exploit V4_80175.exe

  • Size

    8.7MB

  • Sample

    230401-nta8kshg65

  • MD5

    98194b1fd3ceea50438976b40ea59d05

  • SHA1

    ed918fbb5765aa91e5c9d2c492ec00667478ac35

  • SHA256

    3e091df4051e6b0859c2142a0869a415e5968c20edb5e9a60fcd077f7b61be19

  • SHA512

    9587acb23ee51e4743c5399b78b64f2a0e87e2413cd56e220df8c08ebe0f352ac0ca83c1826f09718876a6248057e9cbac0f38ee725de83b4ca7de4f805f30bf

  • SSDEEP

    196608:wu6nOE62LOa8ewFCrqNeuUG59Fa9FVDNWXVkHo/ly:MOb2C6wFCrqNZ529PDNs2Ho/k

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@Please_Read_Me@.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      Roblox Evon Exploit V4_80175.exe

    • Size

      8.7MB

    • MD5

      98194b1fd3ceea50438976b40ea59d05

    • SHA1

      ed918fbb5765aa91e5c9d2c492ec00667478ac35

    • SHA256

      3e091df4051e6b0859c2142a0869a415e5968c20edb5e9a60fcd077f7b61be19

    • SHA512

      9587acb23ee51e4743c5399b78b64f2a0e87e2413cd56e220df8c08ebe0f352ac0ca83c1826f09718876a6248057e9cbac0f38ee725de83b4ca7de4f805f30bf

    • SSDEEP

      196608:wu6nOE62LOa8ewFCrqNeuUG59Fa9FVDNWXVkHo/ly:MOb2C6wFCrqNZ529PDNs2Ho/k

    • Modifies WinLogon for persistence

    • UAC bypass

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Scheduled Task

1
T1053

Hidden Files and Directories

1
T1158

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

7
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

File Deletion

1
T1107

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Hidden Files and Directories

1
T1158

Discovery

Security Software Discovery

1
T1063

Query Registry

5
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Tasks