Analysis
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max time kernel
144s -
max time network
122s -
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 07:22
Static task
static1
Behavioral task
behavioral1
Sample
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
Resource
win11-20240508-en
General
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Target
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
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Size
702KB
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MD5
7830d0fbdc9b0db1b23c974ebb7ed843
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SHA1
5c7421146117885f5b0a340c68ff13186e10661a
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SHA256
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea
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SHA512
47def04f9f69c9003671a29be8efae5c581fa66c0f4a03f152113cefb336f64dcc24946dc31b95abd687a38403bdf274541cc0b2c1eaf6de3541423d3030adba
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SSDEEP
12288:jc1pOXuMlA0qKwVXNbB/wKq+V7L3dvb+8a0hlnYV6Cqg7WXeW2F:jcy+MlHsVX/oEhb+JYlYY1gyXj2F
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/4752-2-0x0000000004A90000-0x0000000004BAB000-memory.dmp family_djvu behavioral1/memory/4344-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4344-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4344-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4344-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4344-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2896-35-0x0000000000400000-0x0000000000537000-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:
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\282f3652-88c5-4524-af70-41d7fbee49f2\\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe\" --AutoStart" 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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 5 api.2ip.ua 6 api.2ip.ua 19 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exedescription pid process target process PID 4752 set thread context of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 set thread context of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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:
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exepid process 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 2896 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 2896 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exedescription pid process target process PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4752 wrote to memory of 4344 4752 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4344 wrote to memory of 3544 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe icacls.exe PID 4344 wrote to memory of 3544 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe icacls.exe PID 4344 wrote to memory of 3544 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe icacls.exe PID 4344 wrote to memory of 5020 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4344 wrote to memory of 5020 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 4344 wrote to memory of 5020 4344 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe PID 5020 wrote to memory of 2896 5020 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4344 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\282f3652-88c5-4524-af70-41d7fbee49f2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3544 -
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5020 -
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2896
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5195fc28150bef9b30510eed36fb325af
SHA11ea8a314d8af1d431b77d5280d1782e9a8e867c6
SHA2565c2e51ccf5767f80257a0a0bb66dee40957e5379431e15a118e7f1343ad1f6e0
SHA512537da7e46d8b5afc796c1908042088c583c5380fb729f3665845fe36286b3efeaec9fa26475e9c2263f55b1eca04bd7ae26088a9a85950b2b7f750fd24eadcfc
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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
MD545e68e0e7a284376f228ec8ed4c6bb22
SHA133ed2f577c401babc28d8efa4bc264c49793868e
SHA2565237ce4a48c12a1efe18bbd03673270a67ff775d30b557782c78dde4eb534524
SHA512cc279dcb0089ea1a24f36cac9164b53d5cf8f35088ac701022ec785fd85b1e8c0e14c560f349bb1d30936f96436cff179b56c2e953e2fd917887673a01a268d4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD52a35df2a26cb957c1f554a92fb342d42
SHA1beb16f414119718363cd9bfcaae8d0ce359911bb
SHA256a6f38578bf438ab6b0e064bd5a134c4b3cae5703e54d864af6f5f630989ba211
SHA512a528f29f6b0fa4690dc5ea71caa3f91ae001eee3da6ce4b29c7611e4e3f4674f569e7a8d3b5c54a84a8b4466761d417b4db26f87edba086a43c35a3efbc5e812
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C:\Users\Admin\AppData\Local\282f3652-88c5-4524-af70-41d7fbee49f2\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
Filesize702KB
MD57830d0fbdc9b0db1b23c974ebb7ed843
SHA15c7421146117885f5b0a340c68ff13186e10661a
SHA256076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea
SHA51247def04f9f69c9003671a29be8efae5c581fa66c0f4a03f152113cefb336f64dcc24946dc31b95abd687a38403bdf274541cc0b2c1eaf6de3541423d3030adba