Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-08-2024 12:02
Static task
static1
Behavioral task
behavioral1
Sample
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
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Size
1.1MB
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MD5
bba54c282b52450d29c0372a0d0801ea
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SHA1
670981a5ef11461aa1891ab300c41f7e83c4e64d
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SHA256
3d3df3e7eb70a5b2ec5d8484b65aa13b0bfa15161ad29b1435f17fc7c80cdef9
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SHA512
056cba65bbaf1aaa7f9a3d548dd6b958e562cd4e3be5e91b1998c3d998f5197a241b7bf8da8470743962d902153b6cfbf2239e18b7bacdd6f30ecae248e71c5d
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SSDEEP
24576:qn4qZ9kMnVFb91WNZj2GdNiZ5SfkVEmLq9kqRn:q4qZyQVx0Zj2Ge2S3O9DRn
Malware Config
Extracted
djvu
http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php
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extension
.coot
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offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
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payload_url
http://ring1.ug/files/cost/updatewin1.exe
http://ring1.ug/files/cost/updatewin2.exe
http://ring1.ug/files/cost/updatewin.exe
http://ring1.ug/files/cost/3.exe
http://ring1.ug/files/cost/4.exe
http://ring1.ug/files/cost/5.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-IbdGyCKhdr Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0175Asd374y5iuhld
Signatures
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Detected Djvu ransomware 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2420-2-0x0000000009AC0000-0x0000000009BDA000-memory.dmp family_djvu behavioral2/memory/2420-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-15-0x0000000009AC0000-0x0000000009BDA000-memory.dmp family_djvu behavioral2/memory/2420-14-0x0000000000400000-0x0000000001400000-memory.dmp family_djvu behavioral2/memory/2420-16-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2524-24-0x0000000000400000-0x0000000001400000-memory.dmp family_djvu behavioral2/memory/2524-27-0x0000000000400000-0x0000000001400000-memory.dmp family_djvu behavioral2/memory/2524-29-0x0000000000400000-0x0000000001400000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exedescription ioc process 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" bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 26 api.2ip.ua 27 api.2ip.ua 45 api.2ip.ua -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4052 2420 WerFault.exe bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exeicacls.exebba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exebba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exepid process 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe 2524 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe 2524 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exedescription pid process target process PID 2420 wrote to memory of 3788 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe icacls.exe PID 2420 wrote to memory of 3788 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe icacls.exe PID 2420 wrote to memory of 3788 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe icacls.exe PID 2420 wrote to memory of 2524 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe PID 2420 wrote to memory of 2524 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe PID 2420 wrote to memory of 2524 2420 bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\0cf2e5d2-89bf-4461-a170-643108ee2737" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3788 -
C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2524 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 21322⤵
- Program crash
PID:4052
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2420 -ip 24201⤵PID:4912
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5d8369eee79b6f0d2da81ed774265e022
SHA154d1c66b06324f6efb51947a6b8f641c399aa17a
SHA256d39686c686fe1e9fee515b6807c350b95f2668a2e546b0a3cd0ba594861544fc
SHA512bb555795aa7ff02861cb7f53d604f3504c2444305a6d767265455b6b269468d0a220031d9ba9d0a701e65c566eac8d14592653f6e8043748c43669a5d826740e
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5484b64931e32e0f4d2690d9960d79f7b
SHA1a3a14d3a4ec80140111719766d4bc9fbd0db8666
SHA2563b6267b9840712cc1be15857b8da8383cadda0cc8dd5e541cd4390fc2e81639a
SHA5128edf9684f81c422746b6f70c94c9a1cdcee4220e58d4cfb3bd667e0968addab5bc92f1b38b3f648da0c130c5b51c32c70f3d7f563ebdddd5bc39e783a56dc4ce
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C:\Users\Admin\AppData\Local\0cf2e5d2-89bf-4461-a170-643108ee2737\bba54c282b52450d29c0372a0d0801ea_JaffaCakes118.exe
Filesize1.1MB
MD5bba54c282b52450d29c0372a0d0801ea
SHA1670981a5ef11461aa1891ab300c41f7e83c4e64d
SHA2563d3df3e7eb70a5b2ec5d8484b65aa13b0bfa15161ad29b1435f17fc7c80cdef9
SHA512056cba65bbaf1aaa7f9a3d548dd6b958e562cd4e3be5e91b1998c3d998f5197a241b7bf8da8470743962d902153b6cfbf2239e18b7bacdd6f30ecae248e71c5d