Analysis Overview
SHA256
366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95
Threat Level: Known bad
The file 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95 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
2024-05-21 19:10
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 19:10
Reported
2024-05-21 19:13
Platform
win10v2004-20240508-en
Max time kernel
141s
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
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b1bb361f-9209-471a-9eab-8ccda90d1319\\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.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 1372 set thread context of 4432 | N/A | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe |
| PID 4900 set thread context of 5112 | N/A | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\b1bb361f-9209-471a-9eab-8ccda90d1319" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 144.107.17.2.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 | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| LB | 89.249.221.146:80 | cajgtus.com | tcp |
| AR | 200.45.93.45:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| LB | 89.249.221.146:80 | cajgtus.com | tcp |
| NL | 23.62.61.152:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 146.221.249.89.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.93.45.200.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.152:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| LB | 89.249.221.146:80 | cajgtus.com | tcp |
| LB | 89.249.221.146:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| LB | 89.249.221.146:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.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 | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/1372-1-0x00000000024A0000-0x000000000253E000-memory.dmp
memory/4432-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4432-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1372-2-0x00000000040E0000-0x00000000041FB000-memory.dmp
memory/4432-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4432-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\b1bb361f-9209-471a-9eab-8ccda90d1319\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
| MD5 | 75b4ec737dc7c826feeed8d91b096708 |
| SHA1 | a2bbfab0e93a5b9e38a88d82392df3f79515b1ac |
| SHA256 | 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95 |
| SHA512 | 6b3a99f7d65f7403afe2df6b89f3f046c1bbb4bdf789de0efa3a7cbbc82d905c823392396447dc0fafae766f020d913a3b43f4af07f07d6c0430bc0e6dabf088 |
memory/4432-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-20-0x0000000000400000-0x0000000000537000-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 | 23401de4de5383d4ac31acb05ff40bfc |
| SHA1 | 19de7d4feffcc7f622773500d13a576df967306d |
| SHA256 | b5dfe9dc333058ff74867e19bc296bb63321afce92cc6b91932bbe772f8e4610 |
| SHA512 | 9e0422c88cb382a2fd49f2c5ce1a5a624609632595a1df968dbc9c1ee840198d76c2fa559957301454509c2138a03489236b13337b58238de83188ff3f9334c0 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a1d955617a4d146e70544d0d9a0390ca |
| SHA1 | 5ffdc4453b23e24a7cb0e634b26864c169f5257b |
| SHA256 | 8dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3 |
| SHA512 | 0bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | fa39d0484d1da2fc928b4d13ececc8c5 |
| SHA1 | 170edac713d727cd41e5884dc35dafd3180efc00 |
| SHA256 | 6fe7811eac55ebe09a45fe137e3dd3cee6357e3a18b7848d5b06a63a619c6052 |
| SHA512 | e29d9783b0b7e3f0cc5e32aa36d6f26e7ddd325b4ebe942563c2f684b62cde727cdca8a381bbe71cbb9853715d270ee24fd4f2b6f30d50212c8680459e9dc3d2 |
memory/5112-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5112-35-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 19:10
Reported
2024-05-21 19:13
Platform
win11-20240508-en
Max time kernel
141s
Max time network
122s
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-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\71d2463d-0767-48e6-955b-9211af1730eb\\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.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 3004 set thread context of 1804 | N/A | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe |
| PID 1540 set thread context of 740 | N/A | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe | C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\71d2463d-0767-48e6-955b-9211af1730eb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
"C:\Users\Admin\AppData\Local\Temp\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.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 | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| BR | 177.129.90.106:80 | sdfjhuz.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| US | 52.111.227.14:443 | tcp |
Files
memory/3004-2-0x0000000004060000-0x000000000417B000-memory.dmp
memory/3004-1-0x00000000025E0000-0x000000000267C000-memory.dmp
memory/1804-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1804-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1804-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1804-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\71d2463d-0767-48e6-955b-9211af1730eb\366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95.exe
| MD5 | 75b4ec737dc7c826feeed8d91b096708 |
| SHA1 | a2bbfab0e93a5b9e38a88d82392df3f79515b1ac |
| SHA256 | 366d63689d0dcbba76ea92d43a410e6455725523b7f66871cc05f57d1c8dff95 |
| SHA512 | 6b3a99f7d65f7403afe2df6b89f3f046c1bbb4bdf789de0efa3a7cbbc82d905c823392396447dc0fafae766f020d913a3b43f4af07f07d6c0430bc0e6dabf088 |
memory/1804-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | efa8e178fc0e196f12596d7ad19f66f0 |
| SHA1 | d5a5ebffff54944b00aaace80a95c948be8547bc |
| SHA256 | 5309f0997185cc4e3876112c8eef51f442711ae9b1f325073d15ff58c6f91610 |
| SHA512 | f89a2bebd5b5e2e63149134cbbe442915051349282e46f4276c5578dfab279d85420b17ca804424237e40f32e8960e686c555a3bd2b66e92b5df621a66e029c9 |
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 | b90dd61449e493287d6b5865d6e2c627 |
| SHA1 | 3f6ac3afc60d7e05574c73a407ecf1a0dcb3312d |
| SHA256 | 19a7e5346a78216b8564168f3e7f8f788844b0bf73f4d5efad247d5c31f61b0d |
| SHA512 | 596ee41edc5fcc2a6ab219b59a00f6cfbf6b4e0250cb2d39d8f6f56aacd858d70ed7c8a4f2566066e5cbf454bb9f50ef3b1eb7bf72e939ba7ac40747f97cce59 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a1d955617a4d146e70544d0d9a0390ca |
| SHA1 | 5ffdc4453b23e24a7cb0e634b26864c169f5257b |
| SHA256 | 8dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3 |
| SHA512 | 0bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810 |
memory/740-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/740-37-0x0000000000400000-0x0000000000537000-memory.dmp