Analysis Overview
SHA256
ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb
Threat Level: Known bad
The file ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Checks computer location settings
Modifies file permissions
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 use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 19:10
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 19:10
Reported
2024-05-22 19:13
Platform
win10v2004-20240426-en
Max time kernel
148s
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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191\\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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 2444 set thread context of 3952 | N/A | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe |
| PID 4972 set thread context of 1412 | N/A | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | 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 |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| BO | 177.222.41.236:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.72:443 | www.bing.com | tcp |
| KR | 211.119.84.112:80 | sdfjhuz.com | tcp |
| BO | 177.222.41.236:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 236.41.222.177.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 112.84.119.211.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.72:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| BO | 177.222.41.236:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| BO | 177.222.41.236:80 | cajgtus.com | tcp |
| BO | 177.222.41.236:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.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 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/2444-1-0x0000000004850000-0x00000000048F2000-memory.dmp
memory/2444-2-0x0000000004A30000-0x0000000004B4B000-memory.dmp
memory/3952-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3952-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3952-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3952-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
| MD5 | a216e53189aac7badb3801bfb806c058 |
| SHA1 | 97b338912cb414c2ed6247288cffb46a6f4e63dc |
| SHA256 | ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb |
| SHA512 | 5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34 |
memory/3952-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 04473163de5fe1acc9f8960638788d55 |
| SHA1 | b55695b692d754123a7855291afae87a0c4f4191 |
| SHA256 | 2da8973e0f48ce5f0a19a1f0cb3f05fc837faf559e247996f8fd643229f6e795 |
| SHA512 | 7e3bbfe3b3952e871e4d515bb70c76cb6f158ce9650a3bcc4e24a0560dad08ab3bca2131640a9cc207efc0cd89fd5b600a32f332af9f1438c16a9e50aca693c4 |
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 | 7e42c714f8eaac6fc3ab98736060ef16 |
| SHA1 | b2dd18d39ce7e20e89ae057e4108b7d5bca6a17a |
| SHA256 | b561035e4a83f0a6882fa449d742dd901432bff61d2aa0dce310e1a1227f06fa |
| SHA512 | 0f2a45e9f585efc3f8f853e3f0d4f3c9ca99c37047468707fe992a2b792f5266cee9ad6abd5dd0dde55df3a80bd053b20c5bf7705fa97f4ca897d2a1357c824d |
memory/1412-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1412-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 19:10
Reported
2024-05-22 19:13
Platform
win11-20240508-en
Max time kernel
146s
Max time network
153s
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\\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf\\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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 1360 set thread context of 2180 | N/A | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe |
| PID 5088 set thread context of 4376 | N/A | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe | C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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 | 217.197.17.2.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 |
| MX | 187.170.192.109:80 | cajgtus.com | tcp |
| KR | 220.82.134.210:80 | sdfjhuz.com | tcp |
| MX | 187.170.192.109:80 | cajgtus.com | tcp |
| MX | 187.170.192.109:80 | cajgtus.com | tcp |
| MX | 187.170.192.109:80 | cajgtus.com | tcp |
| MX | 187.170.192.109:80 | cajgtus.com | tcp |
Files
memory/1360-1-0x0000000004A40000-0x0000000004AD5000-memory.dmp
memory/2180-2-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2180-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-3-0x0000000004AF0000-0x0000000004C0B000-memory.dmp
memory/2180-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2180-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
| MD5 | a216e53189aac7badb3801bfb806c058 |
| SHA1 | 97b338912cb414c2ed6247288cffb46a6f4e63dc |
| SHA256 | ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb |
| SHA512 | 5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34 |
memory/2180-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-22-0x0000000000400000-0x0000000000537000-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 | 5729be57310bee2de561911aa039df33 |
| SHA1 | bf93438bf844db1cfe96ff31b3ac084c1d008257 |
| SHA256 | 2ffae660b9f5f9aeb680180574bae9246e5c875e222439dc4df6313956258d81 |
| SHA512 | c9f0c45a9ef51d7f16a106a2ac771a0aa3ee053f92c865056fc4ae552e438c8cb489fab5e2ffa968c4d3bf4a6ebaa26920c346ee5770571fbce898e4e4f87e9e |
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 | 6ada575427d53667a6a98611b71e6d37 |
| SHA1 | 4722f0c8b889b65329b1ebac2c521d907e71f265 |
| SHA256 | 35d3e06e664920f607224f6ee41978d32e774d28eb43aabfeeda51c0441ca43a |
| SHA512 | 6194086e7c546bdac719d59caa677e4d69ba21cc4d74a86ae1d30e69e53287f1eea1f8c794aa2d348b047272e746af19773d815c391b5e8037fe2c89124bc1ba |
memory/4376-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4376-37-0x0000000000400000-0x0000000000537000-memory.dmp