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Analysis
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max time kernel
147s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21/12/2024, 18:32
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
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Size
725KB
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MD5
30230946115d6d82a890e9e725deb161
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SHA1
f03ee04320db88871b36dc45ed373fb4e43f0312
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SHA256
7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1
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SHA512
47c416a43938457c71327d25c28d4afd3ec049990b24e54d4a23d2a8aed1a5d5365556d80b24a2a6e56415c4b96d71392884043a9942952ff695e343c2414d75
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SSDEEP
12288:hZtJpi3MRBvcV1d1jcjYVXo6/JUFWFg5vF5w5wm8dU2FI1Ee8U:hZ/plno1/c0VXo6/7ghFFVM
Malware Config
Extracted
djvu
http://fuyt.org/fhsgtsspen6/get.php
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extension
.dmay
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offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, 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-FT7BNVbXC9 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: 0458JIjdm
Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/268-2-0x0000000001D00000-0x0000000001E1B000-memory.dmp family_djvu behavioral1/memory/3008-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3008-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3008-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3008-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-63-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-65-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2988-67-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2888 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\28312ce9-4d56-42af-baa7-0091f5affac2\\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe\" --AutoStart" JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.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.
flow ioc 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 268 set thread context of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 2824 set thread context of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 2988 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 2988 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 268 wrote to memory of 3008 268 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 31 PID 3008 wrote to memory of 2888 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 33 PID 3008 wrote to memory of 2888 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 33 PID 3008 wrote to memory of 2888 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 33 PID 3008 wrote to memory of 2888 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 33 PID 3008 wrote to memory of 2824 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 34 PID 3008 wrote to memory of 2824 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 34 PID 3008 wrote to memory of 2824 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 34 PID 3008 wrote to memory of 2824 3008 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 34 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35 PID 2824 wrote to memory of 2988 2824 JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:268 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\28312ce9-4d56-42af-baa7-0091f5affac2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2888
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2988
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD54da821e0c536d80f849b2a0029751ff6
SHA1e00963bc964bcdffccab4cc5238c684a66e89df7
SHA256a166b94540b236eeac96eb8e9f8990cc92b38e645d034106afe5c48cb7d8c704
SHA5127caa08e912e7f1862e1c71bbe0c7c009ebb0b8a095240cb1e13e6204686a968d835a13cd95e94237cf5d8bc73919a42b6c5fdb625e551d9aaa69bfdcfea94a2f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD53ddc73e0d788a7df4d1d50860737a5f6
SHA11ee9956b7380f1bc10c0ec7aedfbbcaf873519e8
SHA256107e6d243d04c0932722912c4980f3943638662f86687f7459d45e859e2cbf10
SHA51233bc7341c211ca96b6a2df9e8f5c92580ff23885c972d2bcf4bc31b9e8a9f1882c08cab1669b93ee06f9ff2b2a383338f2e185fbd488d736177a043a944a393c
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C:\Users\Admin\AppData\Local\28312ce9-4d56-42af-baa7-0091f5affac2\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Filesize725KB
MD530230946115d6d82a890e9e725deb161
SHA1f03ee04320db88871b36dc45ed373fb4e43f0312
SHA2567a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1
SHA51247c416a43938457c71327d25c28d4afd3ec049990b24e54d4a23d2a8aed1a5d5365556d80b24a2a6e56415c4b96d71392884043a9942952ff695e343c2414d75
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b