Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06-09-2024 06:13
Behavioral task
behavioral1
Sample
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe
Resource
win10v2004-20240802-en
General
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Target
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe
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Size
1.1MB
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MD5
86dbb6ed19cb1e8f2da1c3dfa22f32b0
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SHA1
528ac12a59b58fab81b25500384a65e5d6d23a84
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SHA256
0ba115b3fee2afb35dee040675291100006d24a9684232be8c730f166b3b431f
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SHA512
e2e9bb68dd565b530cf451d5a7e37f66c110859126407eb1c12ffb8ec5f05cd36cc7fc931cf69e290b0901834c4530d372fec3c4f0c76c16fdf7f0459ff57b61
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8OWQHUq7:F0dwAYZt6C31WeTVRPOhO7Uq7
Malware Config
Extracted
djvu
http://rlrz.org/lancer/get.php
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extension
.rivd
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offline_id
WbO7bkwHxaepEmevfYYUBNgcxNJGpd7hoNKokRt1
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payload_url
http://znpst.top/dl/build2.exe
http://rlrz.org/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-CcXGxzXf71 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: 0342gSd743d
Signatures
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Detected Djvu ransomware 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\a4dcb087-a81f-402b-b7fb-c9515b563980\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a4dcb087-a81f-402b-b7fb-c9515b563980\\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe\" --AutoStart" 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.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 3 api.2ip.ua 4 api.2ip.ua 9 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:
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exeicacls.exe2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exepid process 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2224 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2224 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exedescription pid process target process PID 2168 wrote to memory of 2760 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe icacls.exe PID 2168 wrote to memory of 2760 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe icacls.exe PID 2168 wrote to memory of 2760 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe icacls.exe PID 2168 wrote to memory of 2760 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe icacls.exe PID 2168 wrote to memory of 2224 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe PID 2168 wrote to memory of 2224 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe PID 2168 wrote to memory of 2224 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe PID 2168 wrote to memory of 2224 2168 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe 2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe"C:\Users\Admin\AppData\Local\Temp\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a4dcb087-a81f-402b-b7fb-c9515b563980" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2760
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C:\Users\Admin\AppData\Local\Temp\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe"C:\Users\Admin\AppData\Local\Temp\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2224
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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
MD54daea680ac410331f06a77edf9c6e986
SHA1d8bfc325034f87251cdc36de226692ac7934ea20
SHA256fab0b30453abb6e16087a5a037d5bd44dcc875cbb7234088ce30f8187a1538bb
SHA512a0ae9e47a3a7f7128c08066a569a35565c0ae67642f721b0536d56cf4db2055468c84d2c0fc97fb98ed614bb45c01bc1a8a8602185af4ce095b8e6b9a1539cb6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5385ba1bfa1ffae2a5421d65e70120246
SHA1f5e4d7bfb758cc5a57a9342df9fc8c15c169f187
SHA25665e81eb150b192636ab55213495690742821983480b6eaa487a30e2f798e3f87
SHA5129cbef0d30d79bf490e548a35c27bed4bc49f13d73e74d1c207a159434e33296892bf57ce189f9d2f093cc707032455b2cf3bf3e784e1bf19a903326376cb243a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5834045612f20eee83dc6f26cfb4a0745
SHA13f47bb1c143f3ea59a1f482095c821bee6af263c
SHA2568a6a32b9c6e9ae865875b19505f259e457f15331e13f969a91c4e306c8421a24
SHA51252de92e1c5529328f225e18d9ac122795366ef68fbd9850cf82838ce84088b9d6c437d858e371b218becdac2b0d7626b3d0c1e31fc6489fffdeb568adb9421e3
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\a4dcb087-a81f-402b-b7fb-c9515b563980\2024090686dbb6ed19cb1e8f2da1c3dfa22f32b0stop.exe
Filesize1.1MB
MD586dbb6ed19cb1e8f2da1c3dfa22f32b0
SHA1528ac12a59b58fab81b25500384a65e5d6d23a84
SHA2560ba115b3fee2afb35dee040675291100006d24a9684232be8c730f166b3b431f
SHA512e2e9bb68dd565b530cf451d5a7e37f66c110859126407eb1c12ffb8ec5f05cd36cc7fc931cf69e290b0901834c4530d372fec3c4f0c76c16fdf7f0459ff57b61