Analysis Overview
SHA256
3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e
Threat Level: Known bad
The file 2024-08-09_f32df0dde450209b1a85d594220c388c_stop was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Djvu family
Modifies file permissions
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-09 04:09
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Djvu family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-09 04:09
Reported
2024-08-09 04:11
Platform
win7-20240704-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e947bdff-abfc-420e-93e0-155fcb140051\\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.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 |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\icacls.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\e947bdff-abfc-420e-93e0-155fcb140051" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.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 | c.pki.goog | udp |
| NL | 142.250.179.131:80 | c.pki.goog | tcp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | uaery.top | udp |
| US | 8.8.8.8:53 | spaceris.com | udp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 92.123.143.234:80 | crl.microsoft.com | tcp |
Files
C:\Users\Admin\AppData\Local\e947bdff-abfc-420e-93e0-155fcb140051\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
| MD5 | f32df0dde450209b1a85d594220c388c |
| SHA1 | 79f1621964fe7f663cb51e7806d9979e070cac39 |
| SHA256 | 3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e |
| SHA512 | 8d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
| MD5 | ee243bade072dc5608a576eef0b657de |
| SHA1 | 2a5109c80bc3840555e3d7263c047b08e5c4bedf |
| SHA256 | 3b95aedd8458ce749168721e5823c8e87fa94ce831c2d20bf0ed902866fa64be |
| SHA512 | 29f6646d255044397c87be64223e4b8b6355c85a95275f6a60d2c248d62111125707dde1d4b8750e557afff2eda8c53e82c11bdd6d68d96e24ee68400bc0cf2f |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
| MD5 | 7fb5fa1534dcf77f2125b2403b30a0ee |
| SHA1 | 365d96812a69ac0a4611ea4b70a3f306576cc3ea |
| SHA256 | 33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f |
| SHA512 | a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | e1ac0f35789dd37d0cba914bbe18e278 |
| SHA1 | f51680e6bd5c8e3716747d7077976c7f43df67b8 |
| SHA256 | 72a8cde0adda5104df6f08d2f64cfe5e38eaa56a59eac351927386ce10a3ed18 |
| SHA512 | 31189cb1cc14ae829cf2fd3743214ce070e102dc888aaeb533638c5ebe9e5dba88f89be0e09c160aa2304cbb86988acbec50113b76ea744153897c735eb60282 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | 971c514f84bba0785f80aa1c23edfd79 |
| SHA1 | 732acea710a87530c6b08ecdf32a110d254a54c8 |
| SHA256 | f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895 |
| SHA512 | 43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58 |
C:\Users\Admin\AppData\Local\Temp\CabC764.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-09 04:09
Reported
2024-08-09 04:11
Platform
win10v2004-20240802-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d2ab89ff-fcc6-4aeb-a119-45f2fe95bc3e\\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.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 |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\icacls.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\d2ab89ff-fcc6-4aeb-a119-45f2fe95bc3e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| NL | 142.250.179.131:80 | c.pki.goog | 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 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 131.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.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 |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | uaery.top | udp |
| US | 8.8.8.8:53 | spaceris.com | udp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.56.11.204.in-addr.arpa | udp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 204.11.56.48:80 | spaceris.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\d2ab89ff-fcc6-4aeb-a119-45f2fe95bc3e\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
| MD5 | f32df0dde450209b1a85d594220c388c |
| SHA1 | 79f1621964fe7f663cb51e7806d9979e070cac39 |
| SHA256 | 3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e |
| SHA512 | 8d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
| MD5 | 7fb5fa1534dcf77f2125b2403b30a0ee |
| SHA1 | 365d96812a69ac0a4611ea4b70a3f306576cc3ea |
| SHA256 | 33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f |
| SHA512 | a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
| MD5 | 19baff0e4adb1a3a97a01ed24ff7736d |
| SHA1 | 955d18889fa68619eeebf5358d19c60d9a34e259 |
| SHA256 | a0f58384560e33ce1b52160fc6e30d97020e1eee6ef29ff5e0fca4ce386dc612 |
| SHA512 | 84241f38cf0a15df815f9467ca1b4de06865254a97237e7e151441e474110b515ea1a97f8d588cc723e4869f2f6bf577af5edbcccc9843fa426d225931c79c9b |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | 971c514f84bba0785f80aa1c23edfd79 |
| SHA1 | 732acea710a87530c6b08ecdf32a110d254a54c8 |
| SHA256 | f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895 |
| SHA512 | 43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | 74393acf44d29914d97fa53b6c45c57f |
| SHA1 | e02b11e67ec5a729b10638584f83c3c2b9206dbd |
| SHA256 | d4081340fd11e228ccec12e90f5e167eb22f39cebf9f6077c1425c033a6a0463 |
| SHA512 | 257905fe049fa24cfe4ad6e4ddad91b6741e3a3420e9c6caf37f4a6626c9c66d53b1c060746cdea5375c4f4d74b7b69c157c0a45319a480d6195727cba82ca6c |