Analysis Overview
SHA256
90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84
Threat Level: Known bad
The file 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
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
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 23:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 23:22
Reported
2024-04-15 23:24
Platform
win10v2004-20240412-en
Max time kernel
148s
Max time network
153s
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-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.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-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\82b24f37-7b70-482b-8d90-c8cecc841d39\\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.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 2656 set thread context of 3636 | N/A | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe |
| PID 1472 set thread context of 548 | N/A | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\82b24f37-7b70-482b-8d90-c8cecc841d39" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.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 | 3.180.250.142.in-addr.arpa | udp |
| 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 | sajdfue.com | udp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| KR | 175.119.10.231:80 | sdfjhuz.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 59.10.58.116.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 231.10.119.175.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.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 | 25.14.97.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.173.189.20.in-addr.arpa | udp |
Files
memory/2656-1-0x0000000002F60000-0x0000000003001000-memory.dmp
memory/2656-2-0x0000000004BB0000-0x0000000004CCB000-memory.dmp
memory/3636-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3636-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3636-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3636-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\82b24f37-7b70-482b-8d90-c8cecc841d39\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
| MD5 | e2a733f51b662778b62c47f9e6727c00 |
| SHA1 | 8b358b86b59be7ec513807b620f3bd88ec72dfef |
| SHA256 | 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84 |
| SHA512 | 72d12b0039fcc5cc5d19b08b53fed47c97e10fdf64e13b99ecb872705185d54f0c5a7ae9a7b53562749cbdf7cf110870c56ad40277bd05b005012578b6e6d4c8 |
memory/3636-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1472-22-0x00000000049D0000-0x0000000004A69000-memory.dmp
memory/548-24-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-26-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 3caddcc7a8fa5e9a3a2db4c145f5ddae |
| SHA1 | 06c4f68dd38a9791fa82c4e0d1795ffefa07b029 |
| SHA256 | 91d46903ceaaba7c589f2f76f5391ea31c8248a78d9ff785caa12c166ab52e55 |
| SHA512 | b7723a6f7644f96b2f5ae04ddfceb5eb038a1e9a4dd949261fba56ab7692b87862f84edb20b3225ae6791df3eca8b9e7522cd378fec6f728ab42a9dbb38e2d19 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 975322ef2628d7ad1ae00600667221fc |
| SHA1 | 42d2c551eeded5827a99a782f2e184ddf9b9ca60 |
| SHA256 | 4e8880a4d5d6d3bc7cc8e7590570de5e31f5b4239bfa9b3cc1a7fc31d4245672 |
| SHA512 | 3c867dfc216b741cbd76f8e2108e50bfe6b2a3f18c25584a61bb3b75107ccf2115909c97641396ad2470f8fd65e02440f2b7b20f3d03461ca3b6fb519bb2cd71 |
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 | 3c6a98dff2c8e5d41183fb934602bccf |
| SHA1 | 389eea4f6c8b9a19dd6efd65b2c979feeb4262a7 |
| SHA256 | 8c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8 |
| SHA512 | fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd |
memory/548-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-41-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-40-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-42-0x0000000000400000-0x0000000000537000-memory.dmp
memory/548-43-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 23:22
Reported
2024-04-15 23:24
Platform
win11-20240412-en
Max time kernel
155s
Max time network
156s
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-1-5-21-825860316-2493133627-3905166409-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\98cf148f-3035-4ce7-9041-e25f5670bb4d\\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.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 4892 set thread context of 4236 | N/A | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe |
| PID 3564 set thread context of 4340 | N/A | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe | C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\98cf148f-3035-4ce7-9041-e25f5670bb4d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
"C:\Users\Admin\AppData\Local\Temp\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| 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 | 172.67.139.220:443 | api.2ip.ua | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| KR | 175.119.10.231:80 | sdfjhuz.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
| PK | 116.58.10.59:80 | sajdfue.com | tcp |
Files
memory/4892-1-0x0000000004C10000-0x0000000004CB2000-memory.dmp
memory/4892-2-0x0000000004CC0000-0x0000000004DDB000-memory.dmp
memory/4236-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4236-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4236-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4236-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\98cf148f-3035-4ce7-9041-e25f5670bb4d\90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84.exe
| MD5 | e2a733f51b662778b62c47f9e6727c00 |
| SHA1 | 8b358b86b59be7ec513807b620f3bd88ec72dfef |
| SHA256 | 90b0578ebea410345cb75e528773c510d4ae9f124160745233efb6eef3930c84 |
| SHA512 | 72d12b0039fcc5cc5d19b08b53fed47c97e10fdf64e13b99ecb872705185d54f0c5a7ae9a7b53562749cbdf7cf110870c56ad40277bd05b005012578b6e6d4c8 |
memory/4236-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3564-21-0x0000000004B40000-0x0000000004BDC000-memory.dmp
memory/4340-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-24-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 3c6a98dff2c8e5d41183fb934602bccf |
| SHA1 | 389eea4f6c8b9a19dd6efd65b2c979feeb4262a7 |
| SHA256 | 8c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8 |
| SHA512 | fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | e32863480615be830c1475a83ce63b49 |
| SHA1 | 0bd099b0665c07b2e2f023da5f774ad25ffa1a94 |
| SHA256 | c4213da8a9fd66222df0dedf2b063a1963c45560d55df6319aaf108c8510b612 |
| SHA512 | f71a502f6eb9a3158d48566d28e5f1ca876648413555c2d09140784a5489f947ddc33575792141724c9cf7503092d357a09773f69b5550bc58127ee91da5c7ee |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 31d3362d58f9edfde4d2337ae0547a1f |
| SHA1 | 70187b3031002fb374f770bac1be58c09c9134ed |
| SHA256 | d454d9408227d98d58a2ff01a559bce4f0e464d5fb13a5ac656749d69ea6082b |
| SHA512 | 930bbd2bdc4998e3bff42aea18fef225f0604ae933efbe628db1c326a175b0dab5a22b820f227d9326d4b5b5f56feca4d3aed47a927ffa7551decc2bde098322 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/4340-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-39-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-40-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-41-0x0000000000400000-0x0000000000537000-memory.dmp