Analysis Overview
SHA256
2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38
Threat Level: Known bad
The file 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38 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
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 15:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 15:31
Reported
2024-04-15 15:34
Platform
win10v2004-20240412-en
Max time kernel
143s
Max time network
116s
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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.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-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a2546bf4-60f6-4fec-b208-6f41c85c4934\\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.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 1472 set thread context of 3964 | N/A | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe |
| PID 4396 set thread context of 2104 | N/A | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a2546bf4-60f6-4fec-b208-6f41c85c4934" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 6.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 188.114.96.2:443 | 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 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.96.114.188.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 188.114.96.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | sajdfue.com | udp |
| CO | 181.129.118.140:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| KR | 211.181.24.133:80 | sajdfue.com | tcp |
| KR | 211.181.24.133:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 140.118.129.181.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.24.181.211.in-addr.arpa | udp |
| KR | 211.181.24.133:80 | sajdfue.com | tcp |
| KR | 211.181.24.133:80 | sajdfue.com | tcp |
| KR | 211.181.24.133:80 | 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 | 21.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
Files
memory/1472-1-0x0000000004B10000-0x0000000004BA7000-memory.dmp
memory/1472-2-0x0000000004BB0000-0x0000000004CCB000-memory.dmp
memory/3964-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3964-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3964-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3964-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\a2546bf4-60f6-4fec-b208-6f41c85c4934\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
| MD5 | db5427457fb2592b4b7b630ceae0193e |
| SHA1 | 8a8a4506975b1f11bf2047cc9d43c72370e7fb28 |
| SHA256 | 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38 |
| SHA512 | a686d28e056f831042ffa906e4882107d2f5b170b61d00fc2e1f39cac4ab51cf4c7645f340bfb622d28ae934a8aed366ef715f5b07143acf846d9a5639cb57b8 |
memory/3964-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-18-0x00000000049F0000-0x0000000004A91000-memory.dmp
memory/2104-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 0836b385c78e554b37b05f2b82e1d262 |
| SHA1 | 7bb738da5da99f88806bb71a02add22ed7aeaad1 |
| SHA256 | f9e6699017b010595ce86ae369024b0f6644374b1f8b43180cf2997cbed928ba |
| SHA512 | 626946bdcbddefaad76376aa2f569923d869a3885455d630594e91f6823fa88008199efe860cb76d14f8a6066611d7b21bed0ea23bc601226ecbd9d33d8515d5 |
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\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | e894578529f08059db9589e4607fdeac |
| SHA1 | 6566f4c9f4f30aa148749a0bd35a254a670958a3 |
| SHA256 | 4c5bc1c96a5c3e15ebe3a8947c3c092e49a7fac7c90e4f048948a93818b99d15 |
| SHA512 | 535ee8a5a3b8603675260ff40ef2ad176c053f63f61d1f2fbd5c178f1be34c8213746273b8f461d7a0ae39413dbf56737b0db7f806a5c78d28faa4e7a196ef57 |
memory/2104-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2104-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 15:31
Reported
2024-04-15 15:34
Platform
win11-20240412-en
Max time kernel
143s
Max time network
125s
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-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7c547e90-b8cc-49aa-b57e-068db3f191b5\\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.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 1148 set thread context of 2412 | N/A | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe |
| PID 3368 set thread context of 2848 | N/A | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe | C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\7c547e90-b8cc-49aa-b57e-068db3f191b5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.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 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| BA | 92.36.226.66:80 | sajdfue.com | tcp |
| IR | 93.118.137.82:80 | sdfjhuz.com | tcp |
| BA | 92.36.226.66:80 | sajdfue.com | tcp |
| BA | 92.36.226.66:80 | sajdfue.com | tcp |
| BA | 92.36.226.66:80 | sajdfue.com | tcp |
| BA | 92.36.226.66:80 | sajdfue.com | tcp |
Files
memory/1148-1-0x0000000004BF0000-0x0000000004C8B000-memory.dmp
memory/2412-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2412-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2412-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1148-2-0x0000000004C90000-0x0000000004DAB000-memory.dmp
memory/2412-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\7c547e90-b8cc-49aa-b57e-068db3f191b5\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
| MD5 | db5427457fb2592b4b7b630ceae0193e |
| SHA1 | 8a8a4506975b1f11bf2047cc9d43c72370e7fb28 |
| SHA256 | 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38 |
| SHA512 | a686d28e056f831042ffa906e4882107d2f5b170b61d00fc2e1f39cac4ab51cf4c7645f340bfb622d28ae934a8aed366ef715f5b07143acf846d9a5639cb57b8 |
memory/2412-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3368-20-0x0000000004AD0000-0x0000000004B6D000-memory.dmp
memory/2848-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-24-0x0000000000400000-0x0000000000537000-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 | 027e8f427685e557dbe3456b2bb17fe0 |
| SHA1 | c838921bfe16abcf76de697d880ac06f570ff2fd |
| SHA256 | 7d6dc26ef572bb17204d1cd5259621ceee7006f84822aeacf20da2147297bef3 |
| SHA512 | 1caef596a26b6c1d672a2431282eab9f2919b33ce8dca96e992e852cb77f0f93f928c2ff76e233c969a459df5f42a4af43c84ed50f0b5b3fffaed9315a7919b7 |
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 | af20bb94195d3d72ac5c6b441950a756 |
| SHA1 | d88f37de509a4d6cdd50053f5f7f3961041fa0f7 |
| SHA256 | c1529d29dda5c9ab6f68c35a798d5b6ed0c711e95f9427a4cf244777bcd97801 |
| SHA512 | 7233356267e1015cab202ad4e494e124237efb2d19d16c1525ec7bbcca43304b95114fee2d8418163e20af34364e89e8804a4bb4f20afd4c79bb386f6fb0164e |
memory/2848-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-39-0x0000000000400000-0x0000000000537000-memory.dmp