Analysis
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max time kernel
98s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
08-08-2024 11:16
Behavioral task
behavioral1
Sample
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
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Size
1.1MB
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MD5
c11cf10ac6c3b434565b929ddf84c534
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SHA1
622e89291e0de0043f1daa5344d8d90fb26e8bb6
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SHA256
8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014
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SHA512
19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8BWQHUq7:F0dwAYZt6C31WeTVRPOhB7Uq7
Malware Config
Extracted
djvu
http://drampik.com/test1/get.php
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extension
.mzqw
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offline_id
ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1
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payload_url
http://uaery.top/dl/build2.exe
http://drampik.com/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-cud8EGMtyB Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0635JOsie
Signatures
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Detected Djvu ransomware 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1\\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe\" --AutoStart" 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 13 api.2ip.ua 1 api.2ip.ua 2 api.2ip.ua -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exeicacls.exe2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exepid process 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 4644 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 4644 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription pid process target process PID 3520 wrote to memory of 4648 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 3520 wrote to memory of 4648 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 3520 wrote to memory of 4648 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 3520 wrote to memory of 4644 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe PID 3520 wrote to memory of 4644 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe PID 3520 wrote to memory of 4644 3520 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:4648 -
C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD56e38137ac0837da74d3bbc1043613718
SHA13a19bb40aa0672874bac57758dc65e6efa78f7a3
SHA256945d02bc8601069be2c606d13378fdfcc7324c584edf13acc873b58db7c9fa2f
SHA512c2458704e7f5ec36826f7259512a9c01553c3c9518f843a1d049c213f4848b4c44f63909c434cc23e7ca476b6a9edeaf3de197c34a23c0d41028cb023a74dd96
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5a3646c70d6c49dc7bd56abdbb8f6c56b
SHA1c702bfc25b3f464ec665a94e1d7d473600dce49e
SHA256541e68eb13ea7629da14fa918182cfc590c980585bf10182bc60a4e933c4c268
SHA51268d2b5ed67e588cdcc4adcc59296dda4fc38db98838e5d009ae2e5e71802392e2de96aa8e99f2e29c44d4223d808ee2304b283953c58ecc2ba05b6ffb2acf54b
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C:\Users\Admin\AppData\Local\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Filesize1.1MB
MD5c11cf10ac6c3b434565b929ddf84c534
SHA1622e89291e0de0043f1daa5344d8d90fb26e8bb6
SHA2568268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014
SHA51219c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971