Analysis
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max time kernel
141s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 00:35
Behavioral task
behavioral1
Sample
baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
Resource
win10v2004-20231222-en
General
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Target
baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.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/0x0008000000015c1d-18.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 2704 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\80629fa6-aabd-4342-bf33-51ba37ec3963\\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe\" --AutoStart" baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.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 3 IoCs
pid Process 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 2944 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 2944 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2304 wrote to memory of 2704 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 28 PID 2304 wrote to memory of 2704 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 28 PID 2304 wrote to memory of 2704 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 28 PID 2304 wrote to memory of 2704 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 28 PID 2304 wrote to memory of 2944 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 29 PID 2304 wrote to memory of 2944 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 29 PID 2304 wrote to memory of 2944 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 29 PID 2304 wrote to memory of 2944 2304 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\80629fa6-aabd-4342-bf33-51ba37ec3963" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
PID:2704
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C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe" --Admin IsNotAutoStart IsNotTask2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2944
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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
MD51a1023fa007e8ba4da518bb7588c72e0
SHA1f2e51c695b5a7732b1d75f7c1d8163118a619149
SHA256af89d12c0d0d6208a097b9fe0c017db36e6acb3f07f252fb56334e6a7900b87e
SHA5126b120fb2d276b5a1f1f267300553f5a6fc088b2ddb2611dba6e50b1bfd295b8ac3fea393bc0ad802af8b7ea3141df26f9de708760ba67b88615f20692593ae71
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD565e5309a2432702c16c05765ce26072d
SHA194ab9a293994468df20adf403b16beda6ed3f83b
SHA2560e56b5bf4a6253b18e196094a80dbe5b32dca38f3d75f98cab45a442bea6d8a5
SHA51224466d410f80c97c78c142f3761807c20064a7f7c5dad3dd298868953418a11c78eb800d082518c856cb32c24aa3dc806ac87dab1ab84fda30961671899bd05b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5a3431eaa5b5f46f2f19ec2f450b07094
SHA100c8f1a05b460bb8529d043f4297737c2147a411
SHA2568aff58ac3034e04eb65623d29b3762a49ba4c9186d625cb4eecadc76418ee2fa
SHA51259016273fd4064708f1a8250a07e463eb51d4e5760e9ab8c104a14546d7250305f6f45a1b16882746ddfb1fcf9d3c79d077079b5954aab4d77d7357d740c7c8a
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C:\Users\Admin\AppData\Local\80629fa6-aabd-4342-bf33-51ba37ec3963\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
Filesize829KB
MD59541054eeb5fa81602eaf1e87bf2b69b
SHA11ff3310f938e020b82297ada977ad78a99ee8a7f
SHA25645fb722d82b10715948bca22d7ffe195d8ae2b8564302626f0d1f9d07019b743
SHA5127bbcf0c657877a01459aa305387a0815e9015909479966efbf8f461f89753050126e326fbe30c3a08de2a3aae7f0d7abe78ed4bd62482c8400eb8e528139e39f
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d