Analysis Overview
SHA256
36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6
Threat Level: Known bad
The file 36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Modifies file permissions
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 15:46
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 15:46
Reported
2024-05-22 15:49
Platform
win11-20240508-en
Max time kernel
147s
Max time network
153s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Djvu Ransomware
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\19faccef-c96b-4b56-946c-60706f04a86f\\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4832 set thread context of 1352 | N/A | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe |
| PID 4184 set thread context of 1872 | N/A | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe"
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\19faccef-c96b-4b56-946c-60706f04a86f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| CO | 190.156.239.49:80 | cajgtus.com | tcp |
| KR | 211.119.84.112:80 | sdfjhuz.com | tcp |
| CO | 190.156.239.49:80 | cajgtus.com | tcp |
| CO | 190.156.239.49:80 | cajgtus.com | tcp |
| CO | 190.156.239.49:80 | cajgtus.com | tcp |
| CO | 190.156.239.49:80 | cajgtus.com | tcp |
Files
memory/4832-1-0x0000000004A90000-0x0000000004B2F000-memory.dmp
memory/4832-2-0x0000000004B30000-0x0000000004C4B000-memory.dmp
memory/1352-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1352-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1352-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1352-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\19faccef-c96b-4b56-946c-60706f04a86f\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
| MD5 | 9ea4b9975ee6d846aefb37abc7f6856a |
| SHA1 | 8800a4603c86569ea6bb4e851e03fcf24c541eec |
| SHA256 | 36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6 |
| SHA512 | befdf67e3d7fcb5db5e51f6ac775bd8781e3692aea1030479a4972f6d51bdb2194c24d18c00d2f0df6f252a516be5332d58bf1df7ed4074f1eac12de768ce57e |
memory/1352-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 490b51aac279d143301e4f3290d5f07e |
| SHA1 | 0bd8c7c79b2575572a089c4b22d9a886e1b4e0ea |
| SHA256 | 4a44ba4145e063f476300c3a09a78d66b1091f05c858133edf0cd774eb518c34 |
| SHA512 | bbaf65d97fe27bf3f8758df77d9297cd2b630b7130770dc7f28de4acbe5ace1e8af6152a7dc2ec1cd43edfbf0269c16cb7776fe323f1cb50a77526a37e65bd04 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 9f3e8ae96b2e67ad8a39ee8c2dab86ec |
| SHA1 | 3dddcc6f5beca9dfbc90a6516dbc4662027d8b81 |
| SHA256 | cec926e2092931a83673a8020009c6a6868bf910d2bd0115540fde75df1a734f |
| SHA512 | 23c98a3f3612cb67f0e7c9478b42d114779c91efb61363a46cb357b0ed11984ed1237c7b3ebe229daa3797187cdba34048205b2894ac8fc371861888d0282c70 |
memory/1872-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1872-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 15:46
Reported
2024-05-22 15:49
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cf33ec57-1961-4e7b-87f1-469c6d2eb487\\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1900 set thread context of 1132 | N/A | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe |
| PID 3232 set thread context of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe | C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe"
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\cf33ec57-1961-4e7b-87f1-469c6d2eb487" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
"C:\Users\Admin\AppData\Local\Temp\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| EG | 197.44.77.26:80 | cajgtus.com | tcp |
| SA | 188.52.244.26:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.77.44.197.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.244.52.188.in-addr.arpa | udp |
| EG | 197.44.77.26:80 | cajgtus.com | tcp |
| EG | 197.44.77.26:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| EG | 197.44.77.26:80 | cajgtus.com | tcp |
| EG | 197.44.77.26:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| NL | 23.62.61.72:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.117.168.52.in-addr.arpa | udp |
Files
memory/1132-1-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1132-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1900-4-0x0000000004AB0000-0x0000000004BCB000-memory.dmp
memory/1900-2-0x00000000048B0000-0x000000000494B000-memory.dmp
memory/1132-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1132-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\cf33ec57-1961-4e7b-87f1-469c6d2eb487\36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6.exe
| MD5 | 9ea4b9975ee6d846aefb37abc7f6856a |
| SHA1 | 8800a4603c86569ea6bb4e851e03fcf24c541eec |
| SHA256 | 36318417c0dea7d574b36ce5fdfa39ad80bda29257b82fc6d7137a8d09920fa6 |
| SHA512 | befdf67e3d7fcb5db5e51f6ac775bd8781e3692aea1030479a4972f6d51bdb2194c24d18c00d2f0df6f252a516be5332d58bf1df7ed4074f1eac12de768ce57e |
memory/1132-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-20-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | fe824b6fbf8d4cfd627811144e866c99 |
| SHA1 | eea61c3198aad016b5db8ec2ae46496dd4e61817 |
| SHA256 | 4b07b572acfb3eff9bbea8a2bc47f145a0af7a718240d179845d0c3a09c91f43 |
| SHA512 | 4d65abb0da8b4d463a7ddbe7a897ffe894f12fc0cf2315dae47d5c8188a1fb13249d1ae6b6967e9c1b6baded0d087337937540a2f7c8c0102011d785e2c74813 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 1846e07a19c4f258343b7f0cf7c1f1a5 |
| SHA1 | 260856538694f4f918abad786fe1e20a04f3edbf |
| SHA256 | d74b625e0295fd57f6d6295ca049cc5e241d72c6ea3c7c9361688d02846b02e1 |
| SHA512 | b88b4ac2df040fcc759ae329d493da9855f7f97934faf8a372a2ba8aff2709c34e2d3cd69a98bf851ab0c7379867548e3b46859e052b70527d0d625158cc446e |
memory/1544-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1544-35-0x0000000000400000-0x0000000000537000-memory.dmp