Analysis
-
max time kernel
299s -
max time network
307s -
platform
windows10-1703_x64 -
resource
win10-20231215-en -
resource tags
arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system -
submitted
15/01/2024, 04:53
Static task
static1
Behavioral task
behavioral1
Sample
6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe
Resource
win10-20231215-en
General
-
Target
6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe
-
Size
811KB
-
MD5
6e1ad02bf816694f51cee197284676d7
-
SHA1
d77d8bfef363dac6948ffd59041520e177884b42
-
SHA256
6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e
-
SHA512
4a29311f123e27773287264f82bf913b0a4cbc4424aae0c3d3bd4315f3b6a280f03ef1d1bc76e920238a66aa90b49d14eb3ed6804f0450491546d093ea47bab4
-
SSDEEP
12288:sJV6RP01LjFq2cSOW/XGXsMUBtB6yOKxipkRJJ9DsJYTM9rH+kVg4G18Tt:HINcC2X+t8nKxipkDJOH9rH+H1G
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
-
extension
.cdwe
-
offline_id
dSwr1XNNi5cIitB5eDPbMANcusB1dWGDB8ToUnt1
-
payload_url
http://brusuax.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-e21iz7dS58 Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0842ASdw
Signatures
-
Detect Vidar Stealer 5 IoCs
resource yara_rule behavioral2/memory/4132-39-0x0000000000400000-0x000000000065E000-memory.dmp family_vidar_v6 behavioral2/memory/4168-44-0x0000000000530000-0x000000000057B000-memory.dmp family_vidar_v6 behavioral2/memory/4132-45-0x0000000000400000-0x000000000065E000-memory.dmp family_vidar_v6 behavioral2/memory/4132-46-0x0000000000400000-0x000000000065E000-memory.dmp family_vidar_v6 behavioral2/memory/4132-51-0x0000000000400000-0x000000000065E000-memory.dmp family_vidar_v6 -
Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/4372-2-0x00000000025D0000-0x00000000026EB000-memory.dmp family_djvu behavioral2/memory/4828-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-42-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/656-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Downloads MZ/PE file
-
Executes dropped EXE 2 IoCs
pid Process 4168 build2.exe 4132 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4116 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1968775928-2924269989-3510977013-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\609fa6bd-59af-4c0d-8b22-38c39690a586\\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe\" --AutoStart" 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.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 15 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4372 set thread context of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 2928 set thread context of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 4168 set thread context of 4132 4168 build2.exe 78 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
pid pid_target Process procid_target 4608 4132 WerFault.exe 78 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 656 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 656 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4372 wrote to memory of 4828 4372 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 72 PID 4828 wrote to memory of 4116 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 73 PID 4828 wrote to memory of 4116 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 73 PID 4828 wrote to memory of 4116 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 73 PID 4828 wrote to memory of 2928 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 74 PID 4828 wrote to memory of 2928 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 74 PID 4828 wrote to memory of 2928 4828 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 74 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 2928 wrote to memory of 656 2928 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 76 PID 656 wrote to memory of 4168 656 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 77 PID 656 wrote to memory of 4168 656 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 77 PID 656 wrote to memory of 4168 656 6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe 77 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78 PID 4168 wrote to memory of 4132 4168 build2.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4372 -
C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\609fa6bd-59af-4c0d-8b22-38c39690a586" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4116
-
-
C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe"C:\Users\Admin\AppData\Local\Temp\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:656 -
C:\Users\Admin\AppData\Local\3e574088-1159-4aeb-8193-7f855ba9080c\build2.exe"C:\Users\Admin\AppData\Local\3e574088-1159-4aeb-8193-7f855ba9080c\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4168 -
C:\Users\Admin\AppData\Local\3e574088-1159-4aeb-8193-7f855ba9080c\build2.exe"C:\Users\Admin\AppData\Local\3e574088-1159-4aeb-8193-7f855ba9080c\build2.exe"6⤵
- Executes dropped EXE
PID:4132 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 19087⤵
- Program crash
PID:4608
-
-
-
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5b7470a9aa569b259d4c2bb3b80ae3aa3
SHA1093290296b7f1e402ef96e4b33a88f064aa401eb
SHA256ee8aeed77dd9f1631fa75845214d75bfe04951a61892410ee369035e13fd14c6
SHA5124da3fc09260692f159c37b068664852931b712c8173de5e4b294799ac33ecf179055aaeb016fd0afad88cbfc50a571c4c88033dca56a573431af7462ea7979be
-
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
MD5a80c989f02c6438c57ff08ace0bcc76b
SHA149408336eb66ed1d6b0e01da18535f26a3ca4ff6
SHA2568b192448875fbc304724beea1d08cf0d9f34bae2e721305f09682fb29cea4f1b
SHA512d04a0849ab40572573c3324fa769bbfc74a65f7b42c5a40785d1a52d85a27cef76e1ed0206da252647e5be02d1f5f9b4286ed1311cfce6ad1d7c078721955c28
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD529894420414aa249f11bf24abbe386af
SHA11bc7c7de6768ad408c07732d1a58d30389332cce
SHA256e2350b4f45ed79c77890ad2e4e6c42037d78c3e5b86007c4b87e8d2ed4cc62be
SHA5124c545c46f86f6bf5f05d56a2cc8486f1cb48410d7ba7b47145b2f09ac4d2b71b7c346f0cf711ba836877f6464f01c8b152aef84dff9938e7788231230126083d
-
Filesize
341KB
MD558d27cdb2dd179af830b8f913fb0eb13
SHA1668899ba8d286f36757f69ac1ef6cb89b3794479
SHA2564bff957a94d3ec4efb8b07969a1e82dc9abbc19c897d3cd8def3d4a11ce300ed
SHA512cd220f57394c5660b5c01123ce5fc269c1a6afb7f34081136469d2aa4b49435c3f962d34b69bb3169cb864f745160d032896c9a0d699386a5c39ee18b0129c01
-
Filesize
192KB
MD55d559f4ba8fedb485128d9389b778296
SHA1aff6e3e6db266f0138081e18ffbd477a6165a418
SHA256f4dbc0a7903fd76a8a774a4d7651890626dc7b6dc359401ee0c605d5316c758c
SHA5126b4b2f9374d0ba4b8bbad3ea91adec13323acb359cba5a23d914bb9e5ded0f1f27c6fc23342170c6250bb469655e0660d5dde8c03db5705dfab52555bfeadc36
-
Filesize
358KB
MD5c4070da9f9b0581171af16e681ccdff8
SHA13fb4182921fdc3acd7873ebe113ac5522585312a
SHA25626063c78e5418610471a9f3a00a155d7d1e5b29856e1979ba3bdc42681a871d0
SHA512c7569cea7f1a841e7cac9cd41287dba3bcacf2cf9dee7bece88800848a7ad5dc4cd2bdc896c7389f0f1144079bbe168048b3f722bcd76fa5d6e14f3081bb6427
-
C:\Users\Admin\AppData\Local\609fa6bd-59af-4c0d-8b22-38c39690a586\6e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e.exe
Filesize811KB
MD56e1ad02bf816694f51cee197284676d7
SHA1d77d8bfef363dac6948ffd59041520e177884b42
SHA2566e83d5dae916b6c88c9a3c93b6c7c55c5f582c2ecdaa97a89a0d8fc803e8113e
SHA5124a29311f123e27773287264f82bf913b0a4cbc4424aae0c3d3bd4315f3b6a280f03ef1d1bc76e920238a66aa90b49d14eb3ed6804f0450491546d093ea47bab4