Analysis Overview
SHA256
3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c
Threat Level: Known bad
The file 3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Checks computer location settings
Modifies file permissions
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 use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 20:05
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 20:05
Reported
2024-05-22 20:08
Platform
win10v2004-20240508-en
Max time kernel
144s
Max time network
125s
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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\35dbc5c0-6f2e-4b8c-8955-12567f722ec3\\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.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 4500 set thread context of 844 | N/A | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe |
| PID 4276 set thread context of 3836 | N/A | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\35dbc5c0-6f2e-4b8c-8955-12567f722ec3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.83.221.88.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 | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.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 |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| PA | 190.218.35.220:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 220.35.218.190.in-addr.arpa | udp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 40.224.98.94.in-addr.arpa | udp |
| NL | 23.62.61.146:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 146.61.62.23.in-addr.arpa | udp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
Files
memory/4500-1-0x0000000002EB0000-0x0000000002F4E000-memory.dmp
memory/4500-2-0x00000000049F0000-0x0000000004B0B000-memory.dmp
memory/844-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/844-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/844-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/844-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\35dbc5c0-6f2e-4b8c-8955-12567f722ec3\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
| MD5 | 25175281f6e6037cc3bc9f8afaaa77e9 |
| SHA1 | 886350f89c88cd41df8605a1e1c75193f93b8965 |
| SHA256 | 3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c |
| SHA512 | 29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e |
memory/844-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-20-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 885780e4edb17e3affbde52514dff5ae |
| SHA1 | 850c7a3bef5f7cd2aeb8451bd87efbed1dad7a37 |
| SHA256 | 8d1a1e0879eae327ec6567655fbae6139c7f1c3bd6b13fa8a07d92cad7612cd5 |
| SHA512 | 11c6018fa21ed04329f2a86a31e416d6b845df9d7c86021112431dfec33dbda188911d51be518a4e35efd6f552739778516875d7ea81c6fa111b980210beafb7 |
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\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 2f9d3f9130a591ca2ebf77bffb69a591 |
| SHA1 | c59e10db508bcf7a3da95dfbf5e2961d06dcdd60 |
| SHA256 | 76b15e90d69849991f733b805d80bc3d033a9a197b95db2a8024a7f737be6a62 |
| SHA512 | fad2ed04c0684ef6827d08935e9f8c0d79758c4238e24f79ad36d2503910ca6d445bb3860bd240607485352780f47c5e9b316b3e0b65ad38e863ed8c3c8ba0b7 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/3836-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3836-35-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 20:05
Reported
2024-05-22 20:08
Platform
win11-20240508-en
Max time kernel
146s
Max time network
150s
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-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\20447cfb-d3d8-4c45-8e9b-5f37e201db77\\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.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 2384 set thread context of 3120 | N/A | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe |
| PID 1008 set thread context of 3908 | N/A | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe | C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\20447cfb-d3d8-4c45-8e9b-5f37e201db77" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| 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 | 24.65.21.104.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 | 104.21.65.24:443 | api.2ip.ua | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| IR | 217.219.131.81:80 | sdfjhuz.com | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
| SA | 94.98.224.40:80 | cajgtus.com | tcp |
Files
memory/2384-1-0x0000000004A10000-0x0000000004AAF000-memory.dmp
memory/2384-2-0x0000000004AB0000-0x0000000004BCB000-memory.dmp
memory/3120-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3120-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3120-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3120-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\20447cfb-d3d8-4c45-8e9b-5f37e201db77\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
| MD5 | 25175281f6e6037cc3bc9f8afaaa77e9 |
| SHA1 | 886350f89c88cd41df8605a1e1c75193f93b8965 |
| SHA256 | 3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c |
| SHA512 | 29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e |
memory/3120-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-22-0x0000000000400000-0x0000000000537000-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 | 8f5ea58ff70895087b94db706c2f247d |
| SHA1 | 0d7feaa1a3199c0f4a6ceec61e5d57eac3c0762f |
| SHA256 | 02aeb414c96c3f3e549cd2823db950d77b50511de0922bd5c08d1772a82a98ce |
| SHA512 | 2ad20ec44f3207d6580cdb4c6b232aaed45dfc4ad149d27ec0777efd87b02fd4f5ede091fde1cc6411564c7b699bdbd2bc6d97e52db0fbcbcbf501c12562375b |
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 | 3432c9352ba90e0255862249af62a73e |
| SHA1 | f56f4b207fe0a6ba4bda1ca158c53cd7a7f58bfc |
| SHA256 | efca290863b920febeb29341ced8d026eb2286928330d5907fe044c60cf20808 |
| SHA512 | 1688038c486a46760ad66341d19c39344fb44e4bb86b48277d6ae3e2d098d319fdd25ee105d34c5cde521ea22dc723ebb07c5d288f8ca31ebe0ae6754240eafe |
memory/3908-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3908-37-0x0000000000400000-0x0000000000537000-memory.dmp