Analysis Overview
SHA256
58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed
Threat Level: Known bad
The file 58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed 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 05:02
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 05:02
Reported
2024-05-22 05:05
Platform
win10v2004-20240426-en
Max time kernel
144s
Max time network
136s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f515acef-0f32-48fe-827f-3d7a808ed7ff\\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.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 740 set thread context of 4972 | N/A | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe |
| PID 4012 set thread context of 4464 | N/A | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe"
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\f515acef-0f32-48fe-827f-3d7a808ed7ff" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.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 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| BR | 191.186.138.218:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| MX | 189.195.132.134:80 | cajgtus.com | tcp |
| MX | 189.195.132.134:80 | cajgtus.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 218.138.186.191.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.132.195.189.in-addr.arpa | udp |
| MX | 189.195.132.134:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| MX | 189.195.132.134:80 | cajgtus.com | tcp |
| MX | 189.195.132.134:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.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 |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
Files
memory/4972-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-4-0x0000000004AB0000-0x0000000004BCB000-memory.dmp
memory/4972-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4972-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-2-0x0000000004910000-0x00000000049AC000-memory.dmp
memory/4972-1-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\f515acef-0f32-48fe-827f-3d7a808ed7ff\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
| MD5 | 34d48ac48d4fa713d24a1f14f1e37896 |
| SHA1 | 0aa53f9d59f9d3818d7f90de12196907b00ad560 |
| SHA256 | 58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed |
| SHA512 | 34206132228d25c18cb2a79df65a0243619634d44cee58972de833aff9877a4bb9bff410be07a62a194efd5acd430f49dfaa79cacfb99c85bd4277a490795e68 |
memory/4972-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 84e7c60c73ebebd1ed53a60f745be97c |
| SHA1 | 440cdeab1d97c1cd6a346316d07348fd215fe548 |
| SHA256 | ac41bbc21b7825febc710a640cbd2b9819a801141c2ecafc4a9ce29476021569 |
| SHA512 | 327aa65e0146911494223891711f93d976d0954cbbe11d05e0afcb282fc1a78eb95bd9c32da5dbace0f0d2217a7996be054b3fa88058742df39aa7448318f8b6 |
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\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 481ecbcf222fb81213118ce569474f0b |
| SHA1 | 630b19506afb3b22ef1c58fd0647fde0d71efaf4 |
| SHA256 | a8aa937ef93d6d41aec15c289a6d9442db913ba93a2dd4a9bc97e519a9db6cd5 |
| SHA512 | 015d0856c502ead184055ff15d59bd4036dd3f2838c894928d55831cb5fc06f63741623427f25c63d2ee36acafd276986eee18d1d66aa19d5f2ec6004367160c |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/4464-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 05:02
Reported
2024-05-22 05:05
Platform
win11-20240419-en
Max time kernel
143s
Max time network
124s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\160296cc-0a68-41b0-8560-0da6b818db2e\\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.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 4172 set thread context of 3300 | N/A | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe |
| PID 1868 set thread context of 1528 | N/A | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe | C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe"
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\160296cc-0a68-41b0-8560-0da6b818db2e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
"C:\Users\Admin\AppData\Local\Temp\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.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 | 104.21.65.24:443 | api.2ip.ua | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| PA | 190.218.35.220:80 | sdfjhuz.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
Files
memory/3300-1-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3300-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4172-4-0x0000000004B40000-0x0000000004C5B000-memory.dmp
memory/3300-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3300-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4172-2-0x0000000004A40000-0x0000000004AD8000-memory.dmp
C:\Users\Admin\AppData\Local\160296cc-0a68-41b0-8560-0da6b818db2e\58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed.exe
| MD5 | 34d48ac48d4fa713d24a1f14f1e37896 |
| SHA1 | 0aa53f9d59f9d3818d7f90de12196907b00ad560 |
| SHA256 | 58c2337e3d3d8bdaf94adc978ae8d0856e7393a61e820a0a47da4d81630aa1ed |
| SHA512 | 34206132228d25c18cb2a79df65a0243619634d44cee58972de833aff9877a4bb9bff410be07a62a194efd5acd430f49dfaa79cacfb99c85bd4277a490795e68 |
memory/3300-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-22-0x0000000000400000-0x0000000000537000-memory.dmp
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 | 4b0bbd07dd1226bfa4ae0a5787f4416a |
| SHA1 | 4ffdc118bb8b28de4661bd202977024de279d826 |
| SHA256 | cd6e2b1f0de35639be49d8926f7688e914f567a77c1d95bc7a0ba0a77ab68923 |
| SHA512 | 1c442dad66e860bdf3d23e85364139a97215d65a206cbccd1985443821b79f901b6ec890594f9f8f78864bdcdc5308a5cc4ea3e79621686774054e2c89327487 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 019c30f8b68cb1de891153248fc69e97 |
| SHA1 | a1046c3f0280c67f4a44caaa5da6c1ccaf78318e |
| SHA256 | 127699ce06652147c283966836f31b2b2173c8a3bd0b97e00e7f8ce4a1861545 |
| SHA512 | 888c0d0a3552e35be8eb38285a2f998c09dce95947a6648746631da9aa2167c75b8fb8b3a0a497429fd356469f034c4f3a6ca93a2787965d07818180db40b7af |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/1528-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1528-37-0x0000000000400000-0x0000000000537000-memory.dmp