Analysis Overview
SHA256
242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f
Threat Level: Known bad
The file 242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Modifies file permissions
Checks computer location settings
Looks up external IP address via web service
Adds Run key to start application
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 03:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 03:41
Reported
2024-05-22 03:43
Platform
win10v2004-20240508-en
Max time kernel
141s
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
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\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.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\\c4d28afd-a0ee-4b36-a71e-62b592b1b2a4\\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.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 4012 set thread context of 1096 | N/A | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe |
| PID 3356 set thread context of 3116 | N/A | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe"
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\c4d28afd-a0ee-4b36-a71e-62b592b1b2a4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| CO | 181.204.98.226:80 | sdfjhuz.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 172.128.147.190.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.98.204.181.in-addr.arpa | udp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/4012-1-0x00000000024E0000-0x000000000257B000-memory.dmp
memory/4012-2-0x0000000004110000-0x000000000422B000-memory.dmp
memory/1096-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1096-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1096-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1096-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\c4d28afd-a0ee-4b36-a71e-62b592b1b2a4\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
| MD5 | 5fadb8694923a6670906dd6f243545d8 |
| SHA1 | 3f1d4f5396e825f41c3ffcd6bc07e98b1a24cadb |
| SHA256 | 242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f |
| SHA512 | a097f611a5b3f4c8bfcd16d5fbe3a32e82be3aa3680acf9f2c940b23d7eaacd6359659c9c5bc43f1235d27dc81fb8d191d82fb8194a116aef9bbed1898de67da |
memory/1096-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | f10c8c7b941acb2bebba2e9b5e686ac7 |
| SHA1 | cff4823e0d0f65033634a93cbd1610c958ca937c |
| SHA256 | 6358c80d6a4cc64547d304a694e6dc632aa85bb422e5dc7d4686fdd1e6bc7ec0 |
| SHA512 | 2ebbf3895dfe19cfc690717bdf510d822b52039cc919fbaeb5c2e949274f11171e3e416a3a439fcc7a1c0ee920d996537917bd469eff2fc5195651ddeba5ccfd |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | cb35bd9d6c5a4fd50a9263018bbd9784 |
| SHA1 | efec24f93d2af7bd01969c36870ebc928fa6c790 |
| SHA256 | be648ee93df285417e494e28c01e3ab8f3d043845f4d3b397dfd137d187ed612 |
| SHA512 | ac26182fb167458da4b465b118720470859e8028db8d3d71ddbe0c5be0e46b9178c5f7ccb8b1252c38754e27da1af546f8d2f6e32e1bfcbeac0d510aa831bf11 |
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 | 8f5b260ef9842f34cd9130d51465029a |
| SHA1 | 73f7879de00b66e3b7e8c7341e554d272f0b9248 |
| SHA256 | 4ddd83f942174574c227787b99f8c223aca8c8b794c1ebbee1fff1cf58179762 |
| SHA512 | b9a74437f3140635918af6949a74a0503b1d01d3bf0bf49da4b0dd620b57c38c669714746927ec1a96fb7874351f9ae5910e10196202a1b13d0d959a689a07f9 |
memory/3116-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 03:41
Reported
2024-05-22 03:43
Platform
win11-20240426-en
Max time kernel
143s
Max time network
123s
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-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\1b6a6f0f-586c-4abc-a723-894cfcb71787\\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.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 1448 set thread context of 5064 | N/A | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe |
| PID 2344 set thread context of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe | C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe"
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\1b6a6f0f-586c-4abc-a723-894cfcb71787" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
"C:\Users\Admin\AppData\Local\Temp\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.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 | 104.21.65.24:443 | api.2ip.ua | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| AZ | 213.172.74.157:80 | sdfjhuz.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
| CO | 190.147.128.172:80 | cajgtus.com | tcp |
Files
memory/1448-1-0x00000000025D0000-0x000000000266F000-memory.dmp
memory/1448-2-0x00000000041C0000-0x00000000042DB000-memory.dmp
memory/5064-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5064-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5064-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5064-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\1b6a6f0f-586c-4abc-a723-894cfcb71787\242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f.exe
| MD5 | 5fadb8694923a6670906dd6f243545d8 |
| SHA1 | 3f1d4f5396e825f41c3ffcd6bc07e98b1a24cadb |
| SHA256 | 242f9eff6769de53c0dd077d92b04f88c5be925a6db1fc001a0beb105614fa6f |
| SHA512 | a097f611a5b3f4c8bfcd16d5fbe3a32e82be3aa3680acf9f2c940b23d7eaacd6359659c9c5bc43f1235d27dc81fb8d191d82fb8194a116aef9bbed1898de67da |
memory/5064-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-22-0x0000000000400000-0x0000000000537000-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 | 399324f0c2949794ba473ebf31d741fc |
| SHA1 | fb29d0d415a3727e26e35030ac211aed71b0052a |
| SHA256 | af613692cba65f23032865426e16b82c5f5d736e340ec706b5534f82b2940d81 |
| SHA512 | dfd708017f3627ba703101c10bef8c488828409ffe0cf188993ccb232b0151546b71e1f90b3d399035167cf5d2f2355171eb61e30bdb6f4d32f77a5e54fbfb60 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | cb35bd9d6c5a4fd50a9263018bbd9784 |
| SHA1 | efec24f93d2af7bd01969c36870ebc928fa6c790 |
| SHA256 | be648ee93df285417e494e28c01e3ab8f3d043845f4d3b397dfd137d187ed612 |
| SHA512 | ac26182fb167458da4b465b118720470859e8028db8d3d71ddbe0c5be0e46b9178c5f7ccb8b1252c38754e27da1af546f8d2f6e32e1bfcbeac0d510aa831bf11 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | dccb4d653650f385378b36bee812f965 |
| SHA1 | ae637d056161c58adf3e303be6868047f998acf1 |
| SHA256 | 83bf93d7a24063465383d0aca55f60bfb7148a93ced200644c382f0e900b98b2 |
| SHA512 | 9ed0809afebcf2885e926fd681d5a2f9e04afa871574e04c8088c368c8eeeb4a0fda48c88ec832dfdb8367375b912d6ea34a0355c6d1ba600232137faaace27d |
memory/788-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-37-0x0000000000400000-0x0000000000537000-memory.dmp