Analysis
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max time kernel
140s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 06:21
Behavioral task
behavioral1
Sample
2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
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Size
1.1MB
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MD5
5cacd6f1b5cec25f3f0b0b3c4d5807d3
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SHA1
41b8851bc57462502b0113ee1f2579dff5d94f4f
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SHA256
c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400
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SHA512
7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO82WQHUq7:F0dwAYZt6C31WeTVRPOh27Uq7
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.vapo
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offline_id
BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.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-tnzomMj6HU 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: 0717JOsie
Signatures
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Detected Djvu ransomware 1 IoCs
resource yara_rule behavioral1/files/0x0008000000015d57-16.dat family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2724 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d45561ba-d9af-44d8-83d8-31c929b151e5\\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe\" --AutoStart" 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_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.
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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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 2452 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1784 wrote to memory of 2724 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 28 PID 1784 wrote to memory of 2724 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 28 PID 1784 wrote to memory of 2724 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 28 PID 1784 wrote to memory of 2724 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 28 PID 1784 wrote to memory of 2452 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 29 PID 1784 wrote to memory of 2452 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 29 PID 1784 wrote to memory of 2452 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 29 PID 1784 wrote to memory of 2452 1784 2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\d45561ba-d9af-44d8-83d8-31c929b151e5" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
PID:2724
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C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2452
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD58daed5fecd6b7116eb16ea66eda552e0
SHA1bb2149a2541f11dc4da8df7f4579dd65c341ce8b
SHA256076f87f4acbece273de34b83b72bb1a4cf38135f1cf27c49722ce8dfe5c60d71
SHA512eeb7e9bea6db27a316e09dd4cdaae0ccbb3d895e56dad92f54e59a6bb13e450fb6bfb09972f7a23aadba82960af004a7b72852d477b14b80d9d5a68dd6859fc7
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD5337bc85d3bf6d4743c6f8d9d522049dc
SHA1e9f8fc10f4e51b41bb5a39f28a452cafd556b33f
SHA256415a8e78c7bc700a8c656cbdb3f93d3e7000d1c881b8bb2a9099091eae316304
SHA512a3e53adf31899650375a2727884a763b93ce5a2d56b7ca987d616eac1f56494309ed957e6dc9e0d778c511c055e48cf255fbb514593451c5c5b39e84a6ebf4b0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD561d57fc111152577c747f945f981a007
SHA1408c6d0996c50510b8a10d9a43e6339ebf0f6183
SHA256deb826f3401508280aed829b3de31c0e86fccb7e4d413e3adae8d866d9b4e5aa
SHA512aea61d9b3a1e91a248f8b7954eb3b64fc96fb3e59ec50a042759af9b1762a9a16c0fc1e2265387944eca218c07472120fde945e033be5d4245133e444f92d170
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD528079b21f0900600d2886a7ace964a5d
SHA1cf54dde59d38138c68bdbbbc54ddf9619be62eae
SHA256033c97658e0a97fcf81d21507b2321cabf28194b8084df18529beaa266ef9423
SHA512f3f90e6a308d268c3084da18a14e4637b4d5931d10a0db28e22bb01f8345a1a09e679db65404091acb16afdd05659cc84115588419726ab0d7d7629a427b7357
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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C:\Users\Admin\AppData\Local\d45561ba-d9af-44d8-83d8-31c929b151e5\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
Filesize1.1MB
MD55cacd6f1b5cec25f3f0b0b3c4d5807d3
SHA141b8851bc57462502b0113ee1f2579dff5d94f4f
SHA256c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400
SHA5127d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4