Analysis
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max time kernel
147s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-04-2024 21:51
Static task
static1
Behavioral task
behavioral1
Sample
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe
Resource
win11-20240419-en
General
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Target
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe
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Size
806KB
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MD5
d6c0214de97b020e1a33188c7ab84983
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SHA1
983adc952eddabf756d871dfb0ec4f9d01135d90
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SHA256
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27
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SHA512
15c532b3d89f4b1d204ba18095f49a77d9978b32c6957ed83bb1f956698e574dd9e01ab1f50ad105081254b6ea9d9d4076f40ba81e671cf2990222928b82c2b0
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SSDEEP
12288:DqipRlhCwD6SeKI/JQjZjEqrA4AcsEHW3gRO/Vra39II+U:HxD6Ue6ZjPJvREVrc+U
Malware Config
Extracted
djvu
http://cajgtus.com/test2/get.php
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extension
.bgzq
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offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: support@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0864PsawqS
Signatures
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Detected Djvu ransomware 16 IoCs
Processes:
resource yara_rule behavioral2/memory/4504-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3492-5-0x0000000003740000-0x000000000385B000-memory.dmp family_djvu behavioral2/memory/4504-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4504-2-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4504-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4504-12-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-16-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-18-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4292-31-0x0000000000400000-0x0000000000537000-memory.dmp 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:
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f9f34325-c9a7-480e-83a2-2fb85260d468\\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe\" --AutoStart" 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 api.2ip.ua 1 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exedescription pid process target process PID 3492 set thread context of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 set thread context of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exepid process 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 4292 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 4292 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exedescription pid process target process PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 3492 wrote to memory of 4504 3492 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 4504 wrote to memory of 464 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe icacls.exe PID 4504 wrote to memory of 464 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe icacls.exe PID 4504 wrote to memory of 464 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe icacls.exe PID 4504 wrote to memory of 1552 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 4504 wrote to memory of 1552 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 4504 wrote to memory of 1552 4504 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe PID 1552 wrote to memory of 4292 1552 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe 223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f9f34325-c9a7-480e-83a2-2fb85260d468" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe"C:\Users\Admin\AppData\Local\Temp\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\f9f34325-c9a7-480e-83a2-2fb85260d468\223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27.exeFilesize
806KB
MD5d6c0214de97b020e1a33188c7ab84983
SHA1983adc952eddabf756d871dfb0ec4f9d01135d90
SHA256223bab416599b5a2db4cff442e7c87161d2f9a4be70e0e51ede01612c3b6ba27
SHA51215c532b3d89f4b1d204ba18095f49a77d9978b32c6957ed83bb1f956698e574dd9e01ab1f50ad105081254b6ea9d9d4076f40ba81e671cf2990222928b82c2b0
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memory/1552-14-0x0000000001DB0000-0x0000000001E4E000-memory.dmpFilesize
632KB
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memory/3492-1-0x0000000001C70000-0x0000000001D08000-memory.dmpFilesize
608KB
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memory/3492-5-0x0000000003740000-0x000000000385B000-memory.dmpFilesize
1.1MB
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memory/4292-19-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-26-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-31-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-30-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-28-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-16-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-17-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-18-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-29-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4292-20-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4504-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4504-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4504-4-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4504-12-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4504-2-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB