Analysis Overview
SHA256
09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972
Threat Level: Known bad
The file 09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972 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
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 16:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 16:22
Reported
2024-05-22 16:24
Platform
win10v2004-20240426-en
Max time kernel
144s
Max time network
126s
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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\dc03cace-e85c-428a-bfcc-bd533513b21e\\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.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 4836 set thread context of 2388 | N/A | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe |
| PID 1900 set thread context of 5084 | N/A | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe"
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\dc03cace-e85c-428a-bfcc-bd533513b21e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.121.18.2.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 |
| PK | 116.58.10.60:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| IR | 2.185.214.11:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| CZ | 95.100.146.33:443 | www.bing.com | tcp |
| PK | 116.58.10.60:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 60.10.58.116.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 33.146.100.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.214.185.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| CZ | 95.100.146.33:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| PK | 116.58.10.60:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| PK | 116.58.10.60:80 | cajgtus.com | tcp |
| PK | 116.58.10.60:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.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 |
Files
memory/4836-1-0x0000000004950000-0x00000000049F2000-memory.dmp
memory/2388-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2388-2-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2388-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2388-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4836-4-0x0000000004A00000-0x0000000004B1B000-memory.dmp
C:\Users\Admin\AppData\Local\dc03cace-e85c-428a-bfcc-bd533513b21e\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
| MD5 | 40036b013c2180c9327edb88b03fd68b |
| SHA1 | dd8e9ce493da9acd69f551b2767b25f5ae05fbd1 |
| SHA256 | 09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972 |
| SHA512 | 0a671b357a97612d201f035283dfa18185b64802a0ee604f9f229d1805db8fca51346f2a75ba7ff040fb059a1de74c1daa24e66ade3c204fff01f80b323bb816 |
memory/2388-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 79e8608eddcd502ae2a6a52c11d851c1 |
| SHA1 | eb627e01b2f8ce9e4e886582d00fd532356c0c12 |
| SHA256 | 3629c50dac4b797e611d69329c97aaa323cb4820a50eab287935cd19247fce98 |
| SHA512 | db5f747bee8607718ce43e5298708c15bf969a33f203c8d627f488de84b8d9ce48ff58573b47a9694b0a55192b88287e4c28489aa879bc3b8fd9fa65ed9d71cc |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | e61ca76489064679c99186aa629316d8 |
| SHA1 | 57bcdb91b0a5b9a39c07accff6fe2b6bdaa07f7e |
| SHA256 | d9f761603370045bbd5174ff51e2766485a84e9d1eb70c9e72eeb14d0a7b2e78 |
| SHA512 | 005adde57decdcb1bf74c9c9a08e38edb5f787da027174fb124f6f8d8dd076385e09bcbdac173aafa581fcad6fc3433eac337e0e81d6f951b4fe223a90ac4776 |
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\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
memory/5084-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5084-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 16:22
Reported
2024-05-22 16:24
Platform
win11-20240508-en
Max time kernel
146s
Max time network
149s
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\\1a34a770-2019-4f56-b61c-7aa59bd13ad0\\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.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 3844 set thread context of 4132 | N/A | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe |
| PID 1012 set thread context of 3424 | N/A | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe | C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe"
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\1a34a770-2019-4f56-b61c-7aa59bd13ad0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
"C:\Users\Admin\AppData\Local\Temp\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 188.114.96.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 2.96.114.188.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 188.114.96.2:443 | api.2ip.ua | tcp |
| MY | 175.137.36.144:80 | cajgtus.com | tcp |
| CZ | 95.100.146.32:443 | www.bing.com | tcp |
| CL | 190.13.174.94:80 | sdfjhuz.com | tcp |
| MY | 175.137.36.144:80 | cajgtus.com | tcp |
| MY | 175.137.36.144:80 | cajgtus.com | tcp |
| MY | 175.137.36.144:80 | cajgtus.com | tcp |
| MY | 175.137.36.144:80 | cajgtus.com | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/3844-1-0x0000000004A70000-0x0000000004B0E000-memory.dmp
memory/3844-2-0x0000000004B10000-0x0000000004C2B000-memory.dmp
memory/4132-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4132-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4132-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4132-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\1a34a770-2019-4f56-b61c-7aa59bd13ad0\09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972.exe
| MD5 | 40036b013c2180c9327edb88b03fd68b |
| SHA1 | dd8e9ce493da9acd69f551b2767b25f5ae05fbd1 |
| SHA256 | 09484b9bdfb7a0f1486211178e0c36c45e5e0898466699ca1c1922b2f1f7f972 |
| SHA512 | 0a671b357a97612d201f035283dfa18185b64802a0ee604f9f229d1805db8fca51346f2a75ba7ff040fb059a1de74c1daa24e66ade3c204fff01f80b323bb816 |
memory/4132-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 556059105cddec842b37cfd0e14229ec |
| SHA1 | 21855183774aa4cff3cb56e7d5947bb8d62a7760 |
| SHA256 | 24d85f21dc6fc0e18cb5f50d322e8be0c18c1a03ceef34d8b0deca7bf5f79c8f |
| SHA512 | 6163acd97f9829a5640e63b84145e9337cb2f9e8148c6506ab4c1f6cf45fc2753d57b55ee2f5154e5be508d341935a063572cc76a3a7bc6fa49778016bb20613 |
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\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 833d70ebdf7ebe186f249193a792a907 |
| SHA1 | e06d1f67af5042ea0c1bda27890a830cf76387d8 |
| SHA256 | c60a2cbf943ad53e3602b2a18b3f6632da5282aabf19870d7d3ad3e37b3abd2b |
| SHA512 | 862c93668f9ddd567f68c741d8825bf3c916131b48c37bace4297cc6101433476de75c6507288798c6c63f8a7408a2a60da7dbf0d8d4e909c87f7f158ffaa7a5 |
memory/3424-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-37-0x0000000000400000-0x0000000000537000-memory.dmp