Analysis Overview
SHA256
86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6
Threat Level: Known bad
The file 86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Checks computer location settings
Modifies file permissions
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 use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-23 03:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-23 03:18
Reported
2024-05-23 03:21
Platform
win10v2004-20240426-en
Max time kernel
144s
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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.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\\7eb3df81-be78-4c02-8060-4fd8723bc652\\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.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 2216 set thread context of 4980 | N/A | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe |
| PID 1452 set thread context of 520 | N/A | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe"
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\7eb3df81-be78-4c02-8060-4fd8723bc652" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| 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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| PE | 190.187.52.42:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 23.159.190.20.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 |
| KR | 211.119.84.112:80 | sdfjhuz.com | tcp |
| PE | 190.187.52.42:80 | cajgtus.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 42.52.187.190.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 112.84.119.211.in-addr.arpa | udp |
| PE | 190.187.52.42:80 | cajgtus.com | tcp |
| PE | 190.187.52.42:80 | cajgtus.com | tcp |
| PE | 190.187.52.42:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.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 |
Files
memory/2216-1-0x0000000002E80000-0x0000000002F15000-memory.dmp
memory/2216-2-0x00000000049C0000-0x0000000004ADB000-memory.dmp
memory/4980-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4980-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4980-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4980-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\7eb3df81-be78-4c02-8060-4fd8723bc652\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
| MD5 | 1803415d0d0002e02718ff233a24c314 |
| SHA1 | c46f8bb5067f2deed66c7076a30ea7424088b6b0 |
| SHA256 | 86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6 |
| SHA512 | e5385320d5fe607a472f1825daf88a69bef9ae5a8c72c66610b08496eee3945f42378b269450b75ffa4509c0c3bd2c755bd80120def13d7378f9371b976dc5e5 |
memory/4980-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | b1afea65e7e2b6faab90485b42131b09 |
| SHA1 | ba03b4fd2f93d6f0d66b9bef87e5b49109230f0d |
| SHA256 | 130aded94c21c434daf64fd6e105aba120d2e0b2ab77ac74e59cadfcb615713a |
| SHA512 | 3ba39416d8a3b473a4cb6a6fb4eea78ab1fe50e066ed41978af9669d82b0b1e887ec9bcb4aa2993f27a4bbe55369b909435757d9b619a2a578fe0e1e404b9b3a |
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 | 0c208c4a1dbed98c4ee72e1aac92a568 |
| SHA1 | 72e2b4c10aee1ce6c8d46a4036259f6860ebd0ac |
| SHA256 | 26436193e7bf73d0750c41a3cb4adcdb94d2df662fba24a393b2a81c63af903d |
| SHA512 | 029f9d39e14bfec816e44310f451369e703982e08dd4fc5cac6ab90fba1481e1bc33a30b09c1f49723084a254c83b4c6fc9fe2cfb45ca18b0e168fdb5e024b2e |
memory/520-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/520-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-23 03:18
Reported
2024-05-23 03:21
Platform
win11-20240426-en
Max time kernel
144s
Max time network
124s
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-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\55a6d1d4-6560-4a53-83e4-851d6695dce2\\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.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 692 set thread context of 3504 | N/A | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe |
| PID 1824 set thread context of 3152 | N/A | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe | C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe"
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\55a6d1d4-6560-4a53-83e4-851d6695dce2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
"C:\Users\Admin\AppData\Local\Temp\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.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 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.169.217.172.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| KR | 211.119.84.112:80 | sdfjhuz.com | tcp |
| KR | 211.202.224.10:80 | cajgtus.com | tcp |
| KR | 211.202.224.10:80 | cajgtus.com | tcp |
| KR | 211.202.224.10:80 | cajgtus.com | tcp |
| KR | 211.202.224.10:80 | cajgtus.com | tcp |
| KR | 211.202.224.10:80 | cajgtus.com | tcp |
Files
memory/692-1-0x0000000004AB0000-0x0000000004B50000-memory.dmp
memory/692-2-0x0000000004B50000-0x0000000004C6B000-memory.dmp
memory/3504-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\55a6d1d4-6560-4a53-83e4-851d6695dce2\86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6.exe
| MD5 | 1803415d0d0002e02718ff233a24c314 |
| SHA1 | c46f8bb5067f2deed66c7076a30ea7424088b6b0 |
| SHA256 | 86d141e0d9832840216d6c932553530d56c47a49961ac32f4578db76646357e6 |
| SHA512 | e5385320d5fe607a472f1825daf88a69bef9ae5a8c72c66610b08496eee3945f42378b269450b75ffa4509c0c3bd2c755bd80120def13d7378f9371b976dc5e5 |
memory/3504-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-22-0x0000000000400000-0x0000000000537000-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 | 83b069d12b7d18f2bd2d0c8ae179459a |
| SHA1 | d7b459f370c867be6a92eec6ad18403fb03caf95 |
| SHA256 | ebfde287c37ff793b9cd04a81bafcfdd904272300049c1194035ebc2a21e6107 |
| SHA512 | 595b435c83f870671180faa83bebaef98379c3f26ef7593dbd1ce1af0bccca66581ab25112c790e544e50937a213b98fd3e32bdba9d465bb5c1cafa5a6f49053 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | bb51363fdd5a46c99f0a307753a46edd |
| SHA1 | 60c53b5f30818eea076a5c98eb8ac03c6d37efb5 |
| SHA256 | d04d72da87a21d41d85e0e27574611555ab849a23ece68fa6ff05f08c1080438 |
| SHA512 | 14bce61ee28dad8fadbdc5064d1b62e471c707a2805d95abcf21cc52496c561def90f88d1d0d2a430dfc8e635bdb383b200fe0a14e5dddd909e466ef77e9d8a0 |
memory/3152-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3152-37-0x0000000000400000-0x0000000000537000-memory.dmp