Analysis
-
max time kernel
88s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-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
-
Target
baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
-
Size
1.1MB
-
MD5
5cacd6f1b5cec25f3f0b0b3c4d5807d3
-
SHA1
41b8851bc57462502b0113ee1f2579dff5d94f4f
-
SHA256
c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400
-
SHA512
7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4
-
SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO82WQHUq7:F0dwAYZt6C31WeTVRPOh27Uq7
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
-
extension
.vapo
-
offline_id
BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1
-
payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
-
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
-
Detected Djvu ransomware 1 IoCs
resource yara_rule behavioral2/files/0x00020000000228cb-11.dat family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4952 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\60696e1b-51a9-4d2f-8179-784bccbfb447\\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 2 api.2ip.ua 16 api.2ip.ua 1 api.2ip.ua -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 3212 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 3212 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4936 wrote to memory of 4952 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 90 PID 4936 wrote to memory of 4952 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 90 PID 4936 wrote to memory of 4952 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 90 PID 4936 wrote to memory of 3212 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 91 PID 4936 wrote to memory of 3212 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 91 PID 4936 wrote to memory of 3212 4936 baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\60696e1b-51a9-4d2f-8179-784bccbfb447" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
PID:4952
-
-
C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe" --Admin IsNotAutoStart IsNotTask2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
PID:3212
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD58daed5fecd6b7116eb16ea66eda552e0
SHA1bb2149a2541f11dc4da8df7f4579dd65c341ce8b
SHA256076f87f4acbece273de34b83b72bb1a4cf38135f1cf27c49722ce8dfe5c60d71
SHA512eeb7e9bea6db27a316e09dd4cdaae0ccbb3d895e56dad92f54e59a6bb13e450fb6bfb09972f7a23aadba82960af004a7b72852d477b14b80d9d5a68dd6859fc7
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD50ab2bd0fcf48b541a5b7a51b9f7131f5
SHA1a81255d3cb310031e9faf216de8385b443ddf826
SHA25632198fdbaebc1cc58994be84163747d3247423bcd63e58e12126d21dbf730d85
SHA512dcb837aa65d02816f1c361e0ae3f874e0efb056b29ee198115d67300c34e154753650abf9a420956dcf3d7319dd62c9d62aa54b8c75a352078079c384e3ead97
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD51b0e6edb5ebefcdc7ad90d3abf72b8ad
SHA1f5af626c3bd2c5828d41dc15ac513293c8e579ea
SHA25602457be1098c630162842a0ffdd28190bd28746e3120ae752446cadf8bf364e3
SHA512a65166f2b89a38a54104e26d5ab457078dcc9762ff0fc2bdd80c5bd4f0ef50816d3664e91f530b73315098462d02bed10786049a9d0d7d949cf28fbe6fdd774a
-
C:\Users\Admin\AppData\Local\60696e1b-51a9-4d2f-8179-784bccbfb447\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
Filesize1.1MB
MD55cacd6f1b5cec25f3f0b0b3c4d5807d3
SHA141b8851bc57462502b0113ee1f2579dff5d94f4f
SHA256c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400
SHA5127d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4
-
Filesize
859B
MD5079a12682aa78bcd3be1f4375ab26c16
SHA1454f42df7b4de7d5cdea942ded1e28e443007360
SHA256b14059bf48468fb54d17d6d8484a217e8d8f7a7e05eee81d2d0f2fd35a841df5
SHA512c349c3042c5913da54f2770f2ae1748fc5cae5c3d4a0e0ec10724329f0ad3c91054f6614af0a0ee981911436033f2e297e0053f1b769c4e457f558ffacec3c7a