General
- Target MalwareCollection-master.zip
- Size 57.3MB
- Sample240224-relmjsdh45
- SHA256 c6a916c33096cd488ca57c28863c433cf5279128aa50ea156761bab6444f4937
- MD5 b59aed5137772e644e29ad334dba17e0
- SHA1 a2e545bbe058bddee0f7af68e21c3471d4abc3ab
- SHA512 daaa8ff6ddb53cb2c3c0218f73be43807982b13f0b5893a322bdd719e0f208b7b98586d0516b04e2e0f36c7dea45dde3fa8423c421f7d82cb9dbb14e3cede525
- SSDEEP 1572864:9j/A/cygNPTitKk8Gq4+/34speZ0jqmhkv71Cg8a6Egs5:Z/ZygNPTitKkRqh/34sprj3q1C31Egs5
- MD5 SHA1 SHA512 SSDEEP
Static task
static1
Behavioral task
behavioral1
Sample
Ransomware.7ev3n.exe
Resource
win10v2004-20240221-en
Behavioral task
behavioral2
Sample
Ransomware.BadRabbit.exe
Resource
win10v2004-20240221-en
Behavioral task
behavioral3
Sample
Ransomware.CoronaVirus.exe
Resource
win10v2004-20240221-en
Behavioral task
behavioral4
Sample
Ransomware.CryptoLocker.exe
Resource
win10v2004-20240221-en
Malware Config
Extracted
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
- All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message F5048EBE In case of no answer in 24 hours write us to theese e-mails: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Targets
-
- Target Ransomware.7ev3n.exe
- Size 315KB
- SHA256 7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5
- MD5 9f8bc96c96d43ecb69f883388d228754
- SHA1 61ed25a706afa2f6684bb4d64f69c5fb29d20953
- SHA512 550a891c1059f58aa983138caf65a7ea9c326cb1b94c15f3e7594128f6e9f1295b9c2dbc0925637dba7c94e938083fffc6a63dc7c2e5b1e247679931cce505c6
- SSDEEP 6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv:BswRSslz0P1OdFXJlJ8buXv
- MD5 SHA1 SHA512 SSDEEP
Score10/10-
Modifies WinLogon for persistence
-
Executes dropped EXE
-
Adds Run key to start application
-
- Target Ransomware.BadRabbit.exe
- Size 431KB
- SHA256 630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
- MD5 fbbdc39af1139aebba4da004475e8839
- SHA1 de5c8d858e6e41da715dca1c019df0bfb92d32c0
- SHA512 74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
- SSDEEP 12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63
- MD5 SHA1 SHA512 SSDEEP
Score10/10-
BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
-
mimikatz is an open source tool to dump credentials on Windows
-
Blocklisted process makes network request
-
Executes dropped EXE
-
Loads dropped DLL
-
- Target Ransomware.CoronaVirus.exe
- Size 1.0MB
- SHA256 dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0
- MD5 055d1462f66a350d9886542d4d79bc2b
- SHA1 f1086d2f667d807dbb1aa362a7a809ea119f2565
- SHA512 2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1
- SSDEEP 24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2
- MD5 SHA1 SHA512 SSDEEP
Score10/10-
Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
-
Renames multiple (494) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Adds Run key to start application
-
Drops desktop.ini file(s)
-
Drops file in System32 directory
-
- Target Ransomware.CryptoLocker.exe
- Size 338KB
- SHA256 d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9
- MD5 04fb36199787f2e3e2135611a38321eb
- SHA1 65559245709fe98052eb284577f1fd61c01ad20d
- SHA512 533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444
- SSDEEP 6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv
- MD5 SHA1 SHA512 SSDEEP
Score10/10-
Deletes itself
-
Executes dropped EXE
-
Adds Run key to start application
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1