Analysis Overview
SHA256
0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb
Threat Level: Known bad
The file 0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb 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
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-23 02:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-23 02:52
Reported
2024-05-23 02:55
Platform
win10v2004-20240508-en
Max time kernel
141s
Max time network
131s
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\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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\\92a43025-1d04-48e3-b4ee-01edda4437b5\\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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 2672 set thread context of 4836 | N/A | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe |
| PID 3116 set thread context of 4512 | N/A | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\92a43025-1d04-48e3-b4ee-01edda4437b5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 |
| US | 8.8.8.8:53 | g.bing.com | udp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| SI | 93.103.167.123:80 | sdfjhuz.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.167.103.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.98.143.63.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 52.111.227.11:443 | tcp | |
| US | 8.8.8.8:53 | 30.243.111.52.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 | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
Files
memory/2672-1-0x0000000004970000-0x0000000004A11000-memory.dmp
memory/2672-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp
memory/4836-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4836-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4836-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4836-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\92a43025-1d04-48e3-b4ee-01edda4437b5\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
| MD5 | 2fe74589699ad8b98b23c473414a5c6a |
| SHA1 | 84b1ab6c53ce76ca7c8710a3fc943f12c260adaa |
| SHA256 | 0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb |
| SHA512 | 2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5 |
memory/4836-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 31ab6432a43361d81da1de1aa0a18330 |
| SHA1 | 5f8743afc92567fc6d291dbc06004ae2f536a2b0 |
| SHA256 | bba1d72e95bf9b87d5f3ce1a72d1f9db833cd80273f068eae6b2544338e2af9f |
| SHA512 | ed4166d5b0e10cfa991008775058d61d84147fcfadf4d91712c106a88df2de1c85d3ce059d0b662cece2716ed7277a70de91d068e2b1af780d7caab601fd1024 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | cf346c75fc8adc976260ed91ffc4790e |
| SHA1 | 2f254e0086fa7c6cc8c2e7668f043ee98b37cfb6 |
| SHA256 | 8f0803441160e3e1e05d1bcea12b793d3687ff6b807f8ec02f0da1aaef46ff26 |
| SHA512 | de6b353710f9a162331e968a87403da25059bdc78df543ddd191de1934eb3f5e0e026214b67ea7e00514f2c22f1c26a551f7e35d0d9f360acdf8e9093e945a8a |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/4512-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-23 02:52
Reported
2024-05-23 02:55
Platform
win11-20240426-en
Max time kernel
144s
Max time network
124s
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-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f131942c-7c59-4152-bc4c-ff8a9235187b\\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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 1788 set thread context of 3020 | N/A | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe |
| PID 848 set thread context of 3392 | N/A | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe | C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\f131942c-7c59-4152-bc4c-ff8a9235187b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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 |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| BA | 31.176.195.237:80 | sdfjhuz.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
| JM | 63.143.98.185:80 | cajgtus.com | tcp |
Files
memory/1788-1-0x0000000004A10000-0x0000000004AB1000-memory.dmp
memory/1788-2-0x0000000004AC0000-0x0000000004BDB000-memory.dmp
memory/3020-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3020-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3020-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3020-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\f131942c-7c59-4152-bc4c-ff8a9235187b\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
| MD5 | 2fe74589699ad8b98b23c473414a5c6a |
| SHA1 | 84b1ab6c53ce76ca7c8710a3fc943f12c260adaa |
| SHA256 | 0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb |
| SHA512 | 2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5 |
memory/3020-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-22-0x0000000000400000-0x0000000000537000-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 | 97b34eb802f6843c1079951f1b537f66 |
| SHA1 | f169349c0bf5b70e7e54f3a3b12543b81898d935 |
| SHA256 | 59bc81143d8b4cd785b6324c19bec4dffcebd4706a61b83dc63ac7e96b2a10d3 |
| SHA512 | fbf393eb25d63e32a73f42222e4057a45fb304339e0d47600b0fa1c8a43c11e6294f5e89563930d60b8a8e4b77a6e9e03f84c525e50a07fa72935fde4ae06d75 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 21190b226eea4531c925900d8ca8de01 |
| SHA1 | 858e19bbd2c4a82a2f741d54f7702ef13f412133 |
| SHA256 | 0939c502dc7989a054ccc4828af7696111edbf6ac3092aef7c9b576a87ff53b2 |
| SHA512 | ce500f3a31abf920ceba0b6a61dd05af145c43f2e05389a454b9f6ffdabd944a5bc8ec7cb2a8605349e131da23e6b69df7e93f7b1d9102f0fab7d6cee01ba6c0 |
memory/3392-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-37-0x0000000000400000-0x0000000000537000-memory.dmp