badrabbit | c6a916c33096cd488ca57c28863c433cf5279128aa50ea156761bab6444f4937 | Triage

Resubmissions

24-02-2024 15:44

240224-s6pzqafh53 10

24-02-2024 14:06

240224-relmjsdh45 10

24-02-2024 11:48

240224-nyvssabe4w 3

Sharing

General

Target

MalwareCollection-master.zip
Size

57.3MB
Sample

240224-relmjsdh45
MD5

b59aed5137772e644e29ad334dba17e0
SHA1

a2e545bbe058bddee0f7af68e21c3471d4abc3ab
SHA256

c6a916c33096cd488ca57c28863c433cf5279128aa50ea156761bab6444f4937
SHA512

daaa8ff6ddb53cb2c3c0218f73be43807982b13f0b5893a322bdd719e0f208b7b98586d0516b04e2e0f36c7dea45dde3fa8423c421f7d82cb9dbb14e3cede525
SSDEEP

1572864:9j/A/cygNPTitKk8Gq4+/34speZ0jqmhkv71Cg8a6Egs5:Z/ZygNPTitKkRqh/34sprj3q1C31Egs5

Score

10^/10

badrabbit cryptolocker dharma mimikatz evasion persistence ransomware spyware stealer trojan

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note

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 coronavirus@qq.com Write this ID in the title of your message F5048EBE In case of no answer in 24 hours write us to theese e-mails: coronavirus@qq.com 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.

Emails

coronavirus@qq.com

Targets

- Target
  
  Ransomware.7ev3n.exe
- Size
  
  315KB
- MD5
  
  9f8bc96c96d43ecb69f883388d228754
- SHA1
  
  61ed25a706afa2f6684bb4d64f69c5fb29d20953
- SHA256
  
  7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5
- SHA512
  
  550a891c1059f58aa983138caf65a7ea9c326cb1b94c15f3e7594128f6e9f1295b9c2dbc0925637dba7c94e938083fffc6a63dc7c2e5b1e247679931cce505c6
- SSDEEP
  
  6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv:BswRSslz0P1OdFXJlJ8buXv
Score

10^/10

evasion persistence trojan
- Modifies WinLogon for persistence
  persistence
- UAC bypass
  evasion trojan
- Executes dropped EXE
- Adds Run key to start application
  persistence
behavioral1
- Target
  
  Ransomware.BadRabbit.exe
- Size
  
  431KB
- MD5
  
  fbbdc39af1139aebba4da004475e8839
- SHA1
  
  de5c8d858e6e41da715dca1c019df0bfb92d32c0
- SHA256
  
  630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
- SHA512
  
  74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
- SSDEEP
  
  12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63
Score

10^/10

badrabbit mimikatz ransomware
- BadRabbit
  Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
  ransomware badrabbit
- Mimikatz
  mimikatz is an open source tool to dump credentials on Windows.
  mimikatz
- mimikatz is an open source tool to dump credentials on Windows
- Blocklisted process makes network request
- Executes dropped EXE
- Loads dropped DLL
behavioral2
- Target
  
  Ransomware.CoronaVirus.exe
- Size
  
  1.0MB
- MD5
  
  055d1462f66a350d9886542d4d79bc2b
- SHA1
  
  f1086d2f667d807dbb1aa362a7a809ea119f2565
- SHA256
  
  dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0
- SHA512
  
  2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1
- SSDEEP
  
  24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2
Score

10^/10

dharma persistence ransomware spyware stealer
- Dharma
  Dharma is a ransomware that uses security software installation to hide malicious activities.
  ransomware dharma
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Renames multiple (494) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Drops desktop.ini file(s)
- Drops file in System32 directory
behavioral3
- Target
  
  Ransomware.CryptoLocker.exe
- Size
  
  338KB
- MD5
  
  04fb36199787f2e3e2135611a38321eb
- SHA1
  
  65559245709fe98052eb284577f1fd61c01ad20d
- SHA256
  
  d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9
- SHA512
  
  533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444
- SSDEEP
  
  6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv
Score

10^/10

cryptolocker persistence ransomware
- CryptoLocker
  Ransomware family with multiple variants.
  ransomware cryptolocker
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
  persistence
behavioral4

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Abuse Elevation Control Mechanism

Bypass User Account Control

Scheduled Task/Job

Defense Evasion

Modify Registry

Abuse Elevation Control Mechanism

Bypass User Account Control

Impair Defenses

Disable or Modify Tools

Indicator Removal

File Deletion

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Exfiltration

Command and Control

Impact

Inhibit System Recovery

Resource Development

Reconnaissance

Tasks

static1

behavioral1

evasionpersistencetrojan

behavioral2

badrabbitmimikatzransomware

behavioral3

dharmapersistenceransomwarespywarestealer

behavioral4

cryptolockerpersistenceransomware