Analysis
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max time kernel
141s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 12:30
Static task
static1
Behavioral task
behavioral1
Sample
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Resource
win11-20240426-en
General
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Target
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
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Size
707KB
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MD5
1534a3acfde4ce180b5e9619954df27f
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SHA1
8d4ceb341b7ac57aab2f94236e7e8b1ede75051f
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SHA256
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04
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SHA512
ffedda4d8936eed91291fe79146b508eaf4d3bf8c378ae1f946ff1a45844597183ce87f974f4acef7f8956b3bb8afbfe1c339ccf9b9a1374f7a80a8a48f86373
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SSDEEP
12288:HUsJbvW1Haefnh1S3rKZGvRemBKgeTZA63TXNbL0IqrMNuDuEcQuB2t79:HUs9hq6KErQDVA63TdBqrMNcuEcJ6
Malware Config
Extracted
djvu
http://cajgtus.com/test2/get.php
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extension
.vehu
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offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral1/memory/2400-2-0x0000000004A00000-0x0000000004B1B000-memory.dmp family_djvu behavioral1/memory/4064-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4064-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4064-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4064-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4064-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2020-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9242b73e-4283-4d9e-93a3-2f05d9d9d331\\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe\" --AutoStart" 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.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 4 api.2ip.ua 5 api.2ip.ua 18 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exedescription pid process target process PID 2400 set thread context of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 set thread context of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.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:
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exepid process 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 2020 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 2020 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exedescription pid process target process PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 2400 wrote to memory of 4064 2400 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 4064 wrote to memory of 3612 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe icacls.exe PID 4064 wrote to memory of 3612 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe icacls.exe PID 4064 wrote to memory of 3612 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe icacls.exe PID 4064 wrote to memory of 404 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 4064 wrote to memory of 404 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 4064 wrote to memory of 404 4064 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe PID 404 wrote to memory of 2020 404 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe 0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\9242b73e-4283-4d9e-93a3-2f05d9d9d331" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3612 -
C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe"C:\Users\Admin\AppData\Local\Temp\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2020
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD56728aea2631b86a76c237508d8ba9b55
SHA17a670f95cac088313f7558869162fe01c6dc0ec9
SHA256e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b
SHA512533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD5c88bd27f0e28cd4b3d124202a71ce8e8
SHA1a60ea6d88fc8c902ddc0a748ddfb47c41abee0e5
SHA2566b4bbaa3cebefbb3e45eec752ab50b3774878777035644f2cc4718d6a9e9b785
SHA512cc63fdfb1f1e84cec617704ab43724a8b2eb5e517f577de642c4a826e61889bbeebd9b36d5d146a28e747e39f3113833d9f636368d45721f6ac55a3b26e02389
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD583ad71bfabed6a091c9ef6d151f2216c
SHA1f39eaedd4301258f38ab34126439cfabd8310c72
SHA25640c191c1854933463120ad4d1d044f0ce3924a7b492f9bfef6a096f803589025
SHA51226820fb2db566d981fe4b41daba15f8dcda5358fa8dd75e4421fba4847045653d62d5488f0f9ff82f4295c0b1acff23f102b89562d36486e5ab399d3a62a2326
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C:\Users\Admin\AppData\Local\9242b73e-4283-4d9e-93a3-2f05d9d9d331\0e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04.exe
Filesize707KB
MD51534a3acfde4ce180b5e9619954df27f
SHA18d4ceb341b7ac57aab2f94236e7e8b1ede75051f
SHA2560e3335732170b14285993ce3fb9514ba7c31cff9ee7e53a7a0629801f2a02f04
SHA512ffedda4d8936eed91291fe79146b508eaf4d3bf8c378ae1f946ff1a45844597183ce87f974f4acef7f8956b3bb8afbfe1c339ccf9b9a1374f7a80a8a48f86373