Analysis Overview
SHA256
d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697
Threat Level: Known bad
The file d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697 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
2024-05-21 12:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 12:57
Reported
2024-05-21 13:00
Platform
win10v2004-20240508-en
Max time kernel
149s
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\61e90a1c-ce1a-412b-9a07-2a04475cd375\\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.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 712 set thread context of 4532 | N/A | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe |
| PID 4316 set thread context of 4280 | N/A | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe"
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\61e90a1c-ce1a-412b-9a07-2a04475cd375" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 188.114.97.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.97.114.188.in-addr.arpa | udp |
| US | 188.114.97.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| MX | 187.143.58.5:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.53.126.40.in-addr.arpa | udp |
| KR | 211.40.39.251:80 | sdfjhuz.com | tcp |
| MX | 187.143.58.5:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 5.58.143.187.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 251.39.40.211.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| NL | 23.62.61.99:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 99.61.62.23.in-addr.arpa | udp |
| MX | 187.143.58.5:80 | cajgtus.com | tcp |
| MX | 187.143.58.5:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| MX | 187.143.58.5:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.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 | 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 | 209.143.182.52.in-addr.arpa | udp |
Files
memory/712-1-0x0000000004060000-0x0000000004101000-memory.dmp
memory/712-2-0x0000000004110000-0x000000000422B000-memory.dmp
memory/4532-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4532-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4532-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4532-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\61e90a1c-ce1a-412b-9a07-2a04475cd375\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
| MD5 | 93c4185d6bd7d35620815e99aa6d9f2b |
| SHA1 | 01c3bfaffb1496d0b4b2d52e21db58dc76d2dd39 |
| SHA256 | d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697 |
| SHA512 | 8f21de65cc56a4c20a3211b6d598b748c1115d08cb44d2f086c6b5e5c26b3e572b956a361d05e8c2495a8e43097ba79b1f49c73e097f4f9d8a65664ef95722f0 |
memory/4532-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-20-0x0000000000400000-0x0000000000537000-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 | 4394fb21dc453052a86831f1fed996db |
| SHA1 | 15111a498f1a2dbe7ce0881f18d17eb42fee1067 |
| SHA256 | 396dbb4e24085f93fd15672647d489550b047faffe0af9190a3b0cf91178d417 |
| SHA512 | 51ad74fd36d072d8d4eec8d93af25548a55fc45c92a85607cc1290f02c393c8f142d3cc2aa34f73a31f881511b692c9e28620b6929e46d3aaf1661ed04a36eba |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | df80f9ba75076db634761b6132e0d4e3 |
| SHA1 | 07983946fb660752c7cccb2ef82d01ec4c9ecc5d |
| SHA256 | d5ff96fd8b416de93a85783192206224cf8821c240cd8ff755f2e8270153dd99 |
| SHA512 | 4ec734c5d29e9ce00b00e42b627253195e8c7a158433fedfcee428e692a6501981c33d7c8a39235f8b691f087145cdbe660b430493edbeedb12588c5cdd5a66a |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 570cbe925b75ee7d442f54410c36fb24 |
| SHA1 | 9563946019cacfcec9d7eaeca642381f12d4b660 |
| SHA256 | e145bd4fe6d1b6cdc438e24beda744e1fd24dcf7fbb6932f152e9aaf0edb855b |
| SHA512 | b53970e6c64d8de1887d2a150cbc2cb79b27ee30f434e91481d5a16cd3d6ff3decf09063d6123a2f149d80a3f750bc1805d50beb226e97b81e2f18ff0bd21064 |
memory/4280-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4280-35-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 12:57
Reported
2024-05-21 13:00
Platform
win11-20240426-en
Max time kernel
143s
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
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-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\84feb6c7-2e90-4700-ae7e-ce79101a93ff\\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.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 332 set thread context of 2068 | N/A | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe |
| PID 2628 set thread context of 1980 | N/A | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe | C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe"
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\84feb6c7-2e90-4700-ae7e-ce79101a93ff" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
"C:\Users\Admin\AppData\Local\Temp\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| KR | 211.40.39.251:80 | sdfjhuz.com | tcp |
| EC | 200.63.106.141:80 | cajgtus.com | tcp |
| EC | 200.63.106.141:80 | cajgtus.com | tcp |
| EC | 200.63.106.141:80 | cajgtus.com | tcp |
| EC | 200.63.106.141:80 | cajgtus.com | tcp |
| EC | 200.63.106.141:80 | cajgtus.com | tcp |
Files
memory/332-1-0x0000000004140000-0x00000000041D7000-memory.dmp
memory/332-3-0x0000000004280000-0x000000000439B000-memory.dmp
memory/2068-2-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2068-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2068-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2068-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\84feb6c7-2e90-4700-ae7e-ce79101a93ff\d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697.exe
| MD5 | 93c4185d6bd7d35620815e99aa6d9f2b |
| SHA1 | 01c3bfaffb1496d0b4b2d52e21db58dc76d2dd39 |
| SHA256 | d90d58df54d765277aad8627085dd15a61b0fafbc794f14b5f81a42807408697 |
| SHA512 | 8f21de65cc56a4c20a3211b6d598b748c1115d08cb44d2f086c6b5e5c26b3e572b956a361d05e8c2495a8e43097ba79b1f49c73e097f4f9d8a65664ef95722f0 |
memory/2068-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | c25bd174e1f12cc0f4e66a655ddc62fb |
| SHA1 | b530493dad2727c60b1b5407baa3120b71d57f3b |
| SHA256 | 26e7a43a7aee8380c332b7953cf3f933e4b40a564e45ae3fbb473e2bf31eb5f5 |
| SHA512 | b6c62261eed51281e31e4ba9d2d9186d939c19991931b2b1c2a93b4d655f55f36f2c2dbe6b98b09a8278a19a9f8b7374be42ef83050f90d45dacc4f8164673b5 |
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 | df80f9ba75076db634761b6132e0d4e3 |
| SHA1 | 07983946fb660752c7cccb2ef82d01ec4c9ecc5d |
| SHA256 | d5ff96fd8b416de93a85783192206224cf8821c240cd8ff755f2e8270153dd99 |
| SHA512 | 4ec734c5d29e9ce00b00e42b627253195e8c7a158433fedfcee428e692a6501981c33d7c8a39235f8b691f087145cdbe660b430493edbeedb12588c5cdd5a66a |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 43784c60af395e4e8d1cb7bf78363626 |
| SHA1 | 69424fc9f079764fe5005651761755b323d40990 |
| SHA256 | d8a839cc1840c3e37318da607cb3cac2a9f0a180bc3b8cbbda280819aaeabcf2 |
| SHA512 | 09910f5d1238429e9e0821d92fa424aca91b645d3f63fa1dde86f588337a9d8f509af122ca11def42975bb89d3e565afa7f9c0f47a1981f0f513b0a2ef71f1a6 |
memory/1980-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1980-37-0x0000000000400000-0x0000000000537000-memory.dmp