Analysis
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max time kernel
293s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
20-06-2024 22:46
Static task
static1
Behavioral task
behavioral1
Sample
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Resource
win10-20240404-en
General
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Target
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
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Size
824KB
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MD5
9b3e38e023020228484dcc008d6f6e52
-
SHA1
16a218483c71a8edeb7c43a9ff3696e53c586ef2
-
SHA256
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f
-
SHA512
0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399
-
SSDEEP
24576:ATJYdNu+4/LN1WKVQ7A6WNETiczoc9myk:AGV4/LK+pPwRNmy
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
-
extension
.watz
-
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
- payload_url
-
ransomnote
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Signatures
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Detected Djvu ransomware 14 IoCs
Processes:
resource yara_rule behavioral1/memory/2108-5-0x00000000004E0000-0x00000000005FB000-memory.dmp family_djvu behavioral1/memory/2468-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2468-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2468-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2468-14-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2540-39-0x0000000000400000-0x0000000000537000-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:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\52612aad-1361-40e2-8f25-dd442a1427fd\\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe\" --AutoStart" 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.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 3 api.2ip.ua 7 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exedescription pid process target process PID 2108 set thread context of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 set thread context of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.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:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exepid process 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 2540 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 2540 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exedescription pid process target process PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2108 wrote to memory of 2468 2108 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2468 wrote to memory of 2684 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 2468 wrote to memory of 2684 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 2468 wrote to memory of 2684 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 2468 wrote to memory of 2684 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 2468 wrote to memory of 2852 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2468 wrote to memory of 2852 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2468 wrote to memory of 2852 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2468 wrote to memory of 2852 2468 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 2852 wrote to memory of 2540 2852 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.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\52612aad-1361-40e2-8f25-dd442a1427fd" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.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\52612aad-1361-40e2-8f25-dd442a1427fd\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exeFilesize
824KB
MD59b3e38e023020228484dcc008d6f6e52
SHA116a218483c71a8edeb7c43a9ff3696e53c586ef2
SHA256567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f
SHA5120f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399
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memory/2108-0-0x0000000000220000-0x00000000002B2000-memory.dmpFilesize
584KB
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memory/2108-5-0x00000000004E0000-0x00000000005FB000-memory.dmpFilesize
1.1MB
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memory/2108-1-0x0000000000220000-0x00000000002B2000-memory.dmpFilesize
584KB
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memory/2468-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2468-4-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2468-7-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2468-8-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2468-14-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-25-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-21-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-22-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-24-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-26-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-38-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-37-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2540-39-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2852-20-0x0000000000400000-0x00000000004DE000-memory.dmpFilesize
888KB
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memory/2852-15-0x0000000000220000-0x00000000002B2000-memory.dmpFilesize
584KB