General
- Target BuilderSans-Regular.otf
- Size 75KB
- Sample260905-s42whaxfkc
- SHA256 40a248a2229bdd7f0c8f924ef8c94356437d903ac58cf69a06217b9382e88af4
- MD5 3bad043047220d1c3b2b10e8b65eae9c
- SHA1 6562136d8165b67ec0f115f70fb9c89595f19915
- SHA512 f4b0f0eafc9a268b200602247341bfa306a9f24d5305a290343d5cae14d8b868ff2ccaf1a5b2577e66da1952d73b6662440d8ed2f7e9d51836ad9297249f47ec
- SSDEEP 1536:RDFbM77DVCYso6MiOT9STthp3B1Yic+gw8Wc:fb07DPXAZ1dgwi
- TLSH T100737C1873A5E70DCFD60E34EEB1C3303326B8ADEF1E4217B390665D6C894959A293D6
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
BuilderSans-Regular.otf
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
BuilderSans-Regular.otf
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\Temp\Temp1_Ransomware.WannaCry.zip\@[email protected]
-
wannacry
- 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 "@[email protected]". 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. �
-
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
-
- Target BuilderSans-Regular.otf
- Size 75KB
- SHA256 40a248a2229bdd7f0c8f924ef8c94356437d903ac58cf69a06217b9382e88af4
- MD5 3bad043047220d1c3b2b10e8b65eae9c
- SHA1 6562136d8165b67ec0f115f70fb9c89595f19915
- SHA512 f4b0f0eafc9a268b200602247341bfa306a9f24d5305a290343d5cae14d8b868ff2ccaf1a5b2577e66da1952d73b6662440d8ed2f7e9d51836ad9297249f47ec
- SSDEEP 1536:RDFbM77DVCYso6MiOT9STthp3B1Yic+gw8Wc:fb07DPXAZ1dgwi
- TLSH T100737C1873A5E70DCFD60E34EEB1C3303326B8ADEF1E4217B390665D6C894959A293D6
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
-
Executes dropped EXE
-
Loads dropped DLL
-
Modifies file permissions
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
-
Executes a VBScript file via the Windows Script Host.
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Modify Registry
1