Analysis
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max time kernel
299s -
max time network
259s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
17-06-2024 05:05
Static task
static1
Behavioral task
behavioral1
Sample
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Resource
win7-20240221-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 17 IoCs
Processes:
resource yara_rule behavioral2/memory/4864-2-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4864-1-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3496-4-0x0000000002180000-0x000000000229B000-memory.dmp family_djvu behavioral2/memory/4864-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4864-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4864-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-43-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-42-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3624-44-0x0000000000400000-0x0000000000537000-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-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\12593b0a-26b2-419a-a563-97f0121bda25\\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe\" --AutoStart" 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.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.
Processes:
flow ioc 2 api.2ip.ua 10 api.2ip.ua 1 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exedescription pid process target process PID 3496 set thread context of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 set thread context of 3624 688 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 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 3624 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 3624 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exedescription pid process target process PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 3496 wrote to memory of 4864 3496 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 4864 wrote to memory of 4336 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 4864 wrote to memory of 4336 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 4864 wrote to memory of 4336 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe icacls.exe PID 4864 wrote to memory of 688 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 4864 wrote to memory of 688 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 4864 wrote to memory of 688 4864 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe PID 688 wrote to memory of 3624 688 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\12593b0a-26b2-419a-a563-97f0121bda25" /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\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12Filesize
1KB
MD52365869258df7a66a2121b802ca4afd9
SHA173acc30a2edeb9d6830de559bb8a74f35168135d
SHA256d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed
SHA512795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8Filesize
436B
MD51bfe0a81db078ea084ff82fe545176fe
SHA150b116f578bd272922fa8eae94f7b02fd3b88384
SHA2565ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f
SHA51237c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12Filesize
174B
MD5d088b8b1116c5303267e0c1d4a81b856
SHA10ebefe4490b7f812dc75309a78b742f3860a248f
SHA256b5b12bdcfd1bd38f3d8a20ed30c67b9bacb8173db9fe3e29ba666b69fbd488c6
SHA5126b628868d4c82ca1dbf5f076fbcfa1b086d58d36ff0f7f377a3f78695330b7952fbc356493c22eed0266f8be66b9e28c9051c1d599974b998c86cc4b7a223bf3
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8Filesize
170B
MD54db7b09adfeabfc77346c52c4a2e50e6
SHA19280002aba510b9e018217f76b2cc4c6ce0d8bd1
SHA256db1cee09799b92a8f969113967b2d153ed763be0885e47eb0fab8b9da3390aa8
SHA5129995f0c9871c3c37a8698cc9052565ed0ab8089000b1d1cb1e56429b185058337f6914be5600115f007a62e82a83b58ff852f7a4eb7110cfff7b971e664ad490
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C:\Users\Admin\AppData\Local\12593b0a-26b2-419a-a563-97f0121bda25\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exeFilesize
824KB
MD59b3e38e023020228484dcc008d6f6e52
SHA116a218483c71a8edeb7c43a9ff3696e53c586ef2
SHA256567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f
SHA5120f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399
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memory/688-28-0x0000000000400000-0x00000000004DE000-memory.dmpFilesize
888KB
-
memory/688-23-0x0000000000400000-0x00000000004DE000-memory.dmpFilesize
888KB
-
memory/3496-4-0x0000000002180000-0x000000000229B000-memory.dmpFilesize
1.1MB
-
memory/3496-3-0x00000000006F0000-0x0000000000784000-memory.dmpFilesize
592KB
-
memory/3624-27-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-38-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-25-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3624-44-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-26-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-42-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-43-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-40-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3624-36-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/3624-37-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/3624-35-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4864-21-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
-
memory/4864-1-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4864-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4864-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/4864-2-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB