Analysis Overview
SHA256
5482bcb0f258027740ffc73b7dba78273bf6a11971152a6354b01db1eb2e6290
Threat Level: Known bad
The file 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118 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
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-25 19:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-25 19:47
Reported
2024-07-25 19:49
Platform
win7-20240705-en
Max time kernel
147s
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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\18c42105-0d01-4451-bd08-68e37032409d\\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1708 set thread context of 1748 | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe |
| PID 2660 set thread context of 2992 | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe |
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\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_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\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\18c42105-0d01-4451-bd08-68e37032409d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.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 |
| GB | 172.217.169.3:80 | c.pki.goog | tcp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | znpst.top | udp |
| US | 8.8.8.8:53 | securebiz.org | udp |
| DE | 92.246.89.93:80 | znpst.top | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 173.222.211.50:80 | crl.microsoft.com | tcp |
Files
memory/1708-0-0x00000000004E0000-0x0000000000572000-memory.dmp
memory/1708-1-0x00000000004E0000-0x0000000000572000-memory.dmp
memory/1748-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1748-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1708-6-0x00000000004E0000-0x0000000000572000-memory.dmp
memory/1708-5-0x0000000000650000-0x000000000076B000-memory.dmp
memory/1748-8-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1748-9-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\18c42105-0d01-4451-bd08-68e37032409d\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
| MD5 | 70f992e73d440fe02244b8fd3962ba61 |
| SHA1 | 1100fd25b820c64613dd16f8cbf16e9c54cc1287 |
| SHA256 | 5482bcb0f258027740ffc73b7dba78273bf6a11971152a6354b01db1eb2e6290 |
| SHA512 | 483d5a51bbc75baefe102d4901ebfbae1ef98c4ca0a78656293d9ca53bbdeee58d084a386b783bbfcf86b867ee4e790d5740024f6cffb9e26e76d6c6ec0e0c88 |
memory/1748-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2660-27-0x0000000000220000-0x00000000002B2000-memory.dmp
memory/2660-28-0x0000000000400000-0x00000000004D8000-memory.dmp
memory/2660-32-0x0000000000400000-0x00000000004D8000-memory.dmp
memory/2992-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-35-0x0000000000400000-0x0000000000537000-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 | 74a094345499dab68b07ca3117dbc871 |
| SHA1 | ce36d0017ce882a13ec2e37d1b3911a1a64e8c90 |
| SHA256 | 1eae449f6c9a70e5a12fc1f58a652d63be540280053136099992c72c6e60e9d1 |
| SHA512 | 86ca233284022416fff47d60d9b866f8d16ebe54e088dc972fdcd65d911ff47c093e7351e432d07d434eeb04377ed4c84c640cf567611b7fbbe671ed6578fbd2 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | 48feb32259c3c6766ef2f66de099e0ec |
| SHA1 | d0a9fdd4bd754a99982f47509d89a407cba9d4a5 |
| SHA256 | 47a90888d28de163f816043724cb0db76b452b0d18ba97ef90154237c0ba6403 |
| SHA512 | 86c82bf39dedccecb84111fcfd84791c48c152854ae41d7035dd259f9109b509341852203fd657059ca42a3142735ebb6a6486303d8dcaad367bb9b878a5ff6c |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
| MD5 | 971c514f84bba0785f80aa1c23edfd79 |
| SHA1 | 732acea710a87530c6b08ecdf32a110d254a54c8 |
| SHA256 | f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895 |
| SHA512 | 43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58 |
C:\Users\Admin\AppData\Local\Temp\Cab277E.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/2992-47-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-48-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-49-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-51-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-55-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-56-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-53-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2992-57-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-25 19:47
Reported
2024-07-25 19:50
Platform
win10v2004-20240709-en
Max time kernel
92s
Max time network
125s
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 |
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| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_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-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6179fbf5-a36a-4630-8238-1d73c3af42cf\\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4648 set thread context of 3616 | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe |
| PID 2284 set thread context of 3324 | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe |
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\70f992e73d440fe02244b8fd3962ba61_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\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_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\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\6179fbf5-a36a-4630-8238-1d73c3af42cf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3324 -ip 3324
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 584
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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| 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 |
| GB | 172.217.169.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/4648-1-0x0000000000800000-0x000000000089C000-memory.dmp
memory/4648-2-0x00000000008A0000-0x00000000009BB000-memory.dmp
memory/3616-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3616-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3616-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3616-5-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\6179fbf5-a36a-4630-8238-1d73c3af42cf\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
| MD5 | 70f992e73d440fe02244b8fd3962ba61 |
| SHA1 | 1100fd25b820c64613dd16f8cbf16e9c54cc1287 |
| SHA256 | 5482bcb0f258027740ffc73b7dba78273bf6a11971152a6354b01db1eb2e6290 |
| SHA512 | 483d5a51bbc75baefe102d4901ebfbae1ef98c4ca0a78656293d9ca53bbdeee58d084a386b783bbfcf86b867ee4e790d5740024f6cffb9e26e76d6c6ec0e0c88 |
memory/3616-18-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2284-19-0x0000000000400000-0x00000000004D8000-memory.dmp
memory/3324-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2284-25-0x0000000000400000-0x00000000004D8000-memory.dmp
memory/3324-24-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3324-22-0x0000000000400000-0x0000000000537000-memory.dmp