Analysis Overview
SHA256
e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148
Threat Level: Known bad
The file e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148 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
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 16:14
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 16:14
Reported
2024-04-15 16:16
Platform
win11-20240412-en
Max time kernel
146s
Max time network
151s
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-1-5-21-1734202354-1504186683-2192872036-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\72d955fc-7c30-4782-96cd-245dfafc7346\\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.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 4524 set thread context of 3444 | N/A | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe |
| PID 3876 set thread context of 1360 | N/A | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\72d955fc-7c30-4782-96cd-245dfafc7346" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.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 |
| CO | 181.55.190.201:80 | sajdfue.com | tcp |
| MY | 175.138.146.92:80 | sdfjhuz.com | tcp |
| CO | 181.55.190.201:80 | sajdfue.com | tcp |
| CO | 181.55.190.201:80 | sajdfue.com | tcp |
| CO | 181.55.190.201:80 | sajdfue.com | tcp |
| CO | 181.55.190.201:80 | sajdfue.com | tcp |
Files
memory/4524-1-0x0000000004BF0000-0x0000000004C8B000-memory.dmp
memory/4524-2-0x0000000004C90000-0x0000000004DAB000-memory.dmp
memory/3444-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3444-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3444-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3444-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\72d955fc-7c30-4782-96cd-245dfafc7346\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
| MD5 | c5c1ca56d106806d9b23a85fd3dd08dc |
| SHA1 | c665b88616eb5c4283c25188ff078145b218f07d |
| SHA256 | e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148 |
| SHA512 | a0517342af6f496eba51b823e0d96ab33a1d6079fa2f6c01bc754f29ca28ed5324b88c8e82175a3b97e8e6d5ff029f20640a419aa7ba49089e57af813a8113e9 |
memory/3444-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3876-20-0x0000000004AD0000-0x0000000004B67000-memory.dmp
memory/1360-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-24-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | f741810cb830974aebab5f43eb80bc43 |
| SHA1 | 1019ffd11ba07f662659b7f244d2743b4b1562c3 |
| SHA256 | 20c4d592f763227cd6ed7fc812ae9d65edd6e046c30a70e7c694c579d9f1580a |
| SHA512 | 607ca542510b2a90fbade08569e449fdf35673dc4f045c4ca61982666fe2dd694d265835ebe2d90146dfcecedc7f229804c8e235d8eb9ca36f761064522539f4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7371cd129f3b63bde1c1cd814e0b92fc |
| SHA1 | e51674e55951bf5bcbeb3d937de4750e7c7d5f51 |
| SHA256 | a8ac7fa3cb85c5c3d42c9fb3c902eab5df256646f038f2245869def0518c8efc |
| SHA512 | bbbdc9e89e54db3a36aeaeaa8a0f8075bb22ae8f49c7ab15d04f96622990b0d7deb62783ea5bbec9631ea9f11798ddde7dd48cea547ea59b9fe6ee0f84e11633 |
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 | 3a9b423c973618dc59ac56206f2c0661 |
| SHA1 | 6acb97b51ecae83085335275a8de4d6a21b06007 |
| SHA256 | d23dc95d1fc8f6ab032ba288173da2c4e4c3d1a84d09167e89e9716dc2537fbf |
| SHA512 | 6af9082f35a6c1e91c892885defb89bd7540508a4b242f1cfa179913b856f0a37718167aaa9e0837e3b56a4ad07c7ddd463e9a0cf29e563ef5dcd1b6c4fcc182 |
memory/1360-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1360-39-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 16:14
Reported
2024-04-15 16:16
Platform
win10v2004-20240412-en
Max time kernel
147s
Max time network
155s
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-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.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-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3c72a42b-b2d7-4eed-9fc5-632b5574b6d3\\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.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 4576 set thread context of 4704 | N/A | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe |
| PID 4092 set thread context of 3472 | N/A | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe | C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3c72a42b-b2d7-4eed-9fc5-632b5574b6d3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
"C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.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 | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.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 | sajdfue.com | udp |
| KW | 62.150.232.50:80 | sajdfue.com | tcp |
| BG | 93.152.141.65:80 | sdfjhuz.com | tcp |
| KW | 62.150.232.50:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 50.232.150.62.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.141.152.93.in-addr.arpa | udp |
| KW | 62.150.232.50:80 | sajdfue.com | tcp |
| KW | 62.150.232.50:80 | sajdfue.com | tcp |
| KW | 62.150.232.50:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.117.168.52.in-addr.arpa | udp |
Files
memory/4576-1-0x00000000049A0000-0x0000000004A3E000-memory.dmp
memory/4576-2-0x0000000004A40000-0x0000000004B5B000-memory.dmp
memory/4704-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4704-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4704-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4704-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\3c72a42b-b2d7-4eed-9fc5-632b5574b6d3\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
| MD5 | c5c1ca56d106806d9b23a85fd3dd08dc |
| SHA1 | c665b88616eb5c4283c25188ff078145b218f07d |
| SHA256 | e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148 |
| SHA512 | a0517342af6f496eba51b823e0d96ab33a1d6079fa2f6c01bc754f29ca28ed5324b88c8e82175a3b97e8e6d5ff029f20640a419aa7ba49089e57af813a8113e9 |
memory/4704-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4092-18-0x00000000049D0000-0x0000000004A64000-memory.dmp
memory/3472-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | f741810cb830974aebab5f43eb80bc43 |
| SHA1 | 1019ffd11ba07f662659b7f244d2743b4b1562c3 |
| SHA256 | 20c4d592f763227cd6ed7fc812ae9d65edd6e046c30a70e7c694c579d9f1580a |
| SHA512 | 607ca542510b2a90fbade08569e449fdf35673dc4f045c4ca61982666fe2dd694d265835ebe2d90146dfcecedc7f229804c8e235d8eb9ca36f761064522539f4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7d239292529ac220a22978a9bb964d73 |
| SHA1 | 9baab3021acea6aa3e100986d0970960a0329292 |
| SHA256 | b6e99c7eb6f2b36cb6cd8b777484ec45d27f90759c3376ec8ba87c743d7a99ad |
| SHA512 | e98beaa915dd0aa094377aeb47f64090a82a76d869573fc972e5c2a324a12475af9d83f72d62e89ecfedc4c90e885a900afe190e8d2594323d3466fc23a895be |
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 | 9e4e8915e111e1b47ab28007cc1e5fea |
| SHA1 | e98a128d5d5c1fd8bc713a8f1c00687d4c80e17e |
| SHA256 | 55e785c63565c804838093baeb2fe57ac8256b1043889eaa7217e80cd0859a6e |
| SHA512 | 5bd5933cf209b8ff8249c892ffa40956dea33aa566318b8535eb4f0d7656212606972d97e7b4b82036d7b72589f33d02d3a309328f26eb39bae18aad0b2a7b3b |
memory/3472-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3472-37-0x0000000000400000-0x0000000000537000-memory.dmp