Analysis Overview
SHA256
3d3df3e7eb70a5b2ec5d8484b65aa13b0bfa15161ad29b1435f17fc7c80cdef9
Threat Level: Known bad
The file bba54c282b52450d29c0372a0d0801ea_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Checks computer location settings
Modifies file permissions
Looks up external IP address via web service
Adds Run key to start application
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-23 12:02
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-23 12:02
Reported
2024-08-23 12:04
Platform
win7-20240704-en
Max time kernel
142s
Max time network
122s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\71dbaaaf-2f53-4d4e-a7be-cf69453c9204\\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\71dbaaaf-2f53-4d4e-a7be-cf69453c9204" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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 | c.pki.goog | udp |
| FR | 216.58.214.163:80 | c.pki.goog | tcp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | ring1.ug | udp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 92.123.143.234:80 | crl.microsoft.com | tcp |
Files
memory/2924-0-0x0000000009380000-0x0000000009442000-memory.dmp
memory/2924-1-0x0000000009380000-0x0000000009442000-memory.dmp
memory/2924-2-0x0000000009450000-0x000000000956A000-memory.dmp
memory/2924-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\71dbaaaf-2f53-4d4e-a7be-cf69453c9204\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
| MD5 | bba54c282b52450d29c0372a0d0801ea |
| SHA1 | 670981a5ef11461aa1891ab300c41f7e83c4e64d |
| SHA256 | 3d3df3e7eb70a5b2ec5d8484b65aa13b0bfa15161ad29b1435f17fc7c80cdef9 |
| SHA512 | 056cba65bbaf1aaa7f9a3d548dd6b958e562cd4e3be5e91b1998c3d998f5197a241b7bf8da8470743962d902153b6cfbf2239e18b7bacdd6f30ecae248e71c5d |
memory/2924-24-0x0000000009450000-0x000000000956A000-memory.dmp
memory/2924-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2924-23-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2924-25-0x0000000009380000-0x0000000009442000-memory.dmp
memory/2592-27-0x0000000009420000-0x00000000094E2000-memory.dmp
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 | fbf55cfe950a61fa6256bc87257913f4 |
| SHA1 | 5e81e1e1a1278e86373aaa832534d915e9d37740 |
| SHA256 | 79a8835d7671c9fd847b6aae494389276574bdbc2aa09a6eefb5a964c780f4c5 |
| SHA512 | f2db21b07217723e58d26571fab91efa9c5fbb6979a02fdfe251bc3ca1c167f5411c3aa5197a4036cc1694ed352d19cc7f9a4e234d45571396853d6cd7bafee0 |
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 | 64830b3be24acb08e072c46eb465c7c0 |
| SHA1 | a09b2f2be98a0a402fb81cc501edd745c856f224 |
| SHA256 | d112dda1ff50b11a20181f7eb51a69d56fa4e65fef4d22ad0adcfed272f5c89e |
| SHA512 | c5f1c897e120583d2ad31c0536ae8621ff43a839d5299c704f225689bc69fb2b7d6770cc7af27671e48147c2e31dbecaa169b8e48499173e23fb216c3c655618 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
| MD5 | 5556c860daf11cfdebc3519c96922707 |
| SHA1 | dcea9d034c8612874e1caf96dcb91201e5e03284 |
| SHA256 | f89d66f53d833b5799168ea67684b147a886893b9995e401c8e4da7c55176e33 |
| SHA512 | 9cf6c888b1d0a8fd455e935c1119c9307d642a88353d2ef3c62908aede3222b909971359c54da53f866b40ae71b429fd2b1881e89ef8526c516bc485730bc1c4 |
C:\Users\Admin\AppData\Local\Temp\CabFA.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/2592-42-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2592-43-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2592-46-0x0000000000400000-0x0000000001400000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-23 12:02
Reported
2024-08-23 12:04
Platform
win10v2004-20240802-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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0cf2e5d2-89bf-4461-a170-643108ee2737\\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe |
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\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.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\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\0cf2e5d2-89bf-4461-a170-643108ee2737" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2420 -ip 2420
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 2132
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.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 | c.pki.goog | udp |
| FR | 216.58.214.163:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 163.214.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | ring1.ug | udp |
| US | 8.8.8.8:53 | ring1.ug | udp |
| US | 8.8.8.8:53 | ring1.ug | udp |
| US | 8.8.8.8:53 | ring1.ug | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
Files
memory/2420-1-0x00000000099F0000-0x0000000009ABB000-memory.dmp
memory/2420-2-0x0000000009AC0000-0x0000000009BDA000-memory.dmp
memory/2420-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\0cf2e5d2-89bf-4461-a170-643108ee2737\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
| MD5 | bba54c282b52450d29c0372a0d0801ea |
| SHA1 | 670981a5ef11461aa1891ab300c41f7e83c4e64d |
| SHA256 | 3d3df3e7eb70a5b2ec5d8484b65aa13b0bfa15161ad29b1435f17fc7c80cdef9 |
| SHA512 | 056cba65bbaf1aaa7f9a3d548dd6b958e562cd4e3be5e91b1998c3d998f5197a241b7bf8da8470743962d902153b6cfbf2239e18b7bacdd6f30ecae248e71c5d |
memory/2420-15-0x0000000009AC0000-0x0000000009BDA000-memory.dmp
memory/2420-14-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2420-16-0x0000000000400000-0x0000000000537000-memory.dmp
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 | d8369eee79b6f0d2da81ed774265e022 |
| SHA1 | 54d1c66b06324f6efb51947a6b8f641c399aa17a |
| SHA256 | d39686c686fe1e9fee515b6807c350b95f2668a2e546b0a3cd0ba594861544fc |
| SHA512 | bb555795aa7ff02861cb7f53d604f3504c2444305a6d767265455b6b269468d0a220031d9ba9d0a701e65c566eac8d14592653f6e8043748c43669a5d826740e |
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 | 484b64931e32e0f4d2690d9960d79f7b |
| SHA1 | a3a14d3a4ec80140111719766d4bc9fbd0db8666 |
| SHA256 | 3b6267b9840712cc1be15857b8da8383cadda0cc8dd5e541cd4390fc2e81639a |
| SHA512 | 8edf9684f81c422746b6f70c94c9a1cdcee4220e58d4cfb3bd667e0968addab5bc92f1b38b3f648da0c130c5b51c32c70f3d7f563ebdddd5bc39e783a56dc4ce |
memory/2524-24-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2524-27-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2524-29-0x0000000000400000-0x0000000001400000-memory.dmp