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Analysis
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max time kernel
146s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23/12/2024, 17:17
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
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Size
800KB
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MD5
215ef8c9fd78b2413067cafab6c84f40
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SHA1
47cbc8b9298d6a43c6699b6ce8325951f0d98a9b
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SHA256
cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353
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SHA512
0b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb
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SSDEEP
24576:vXCb54N1CCEjoQjyLonWTbemE7GKBOMcy:vXcaN1M5ooWTbqNBU
Malware Config
Extracted
djvu
http://fuyt.org/fhsgtsspen6/get.php
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extension
.nuhb
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offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 18 IoCs
resource yara_rule behavioral2/memory/4280-2-0x0000000002240000-0x000000000235B000-memory.dmp family_djvu behavioral2/memory/4420-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4420-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4420-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4420-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4420-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-44-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-46-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1984-49-0x0000000000400000-0x0000000000537000-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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4568 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a192849d-9306-4228-a914-ddde9e6721ed\\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe\" --AutoStart" JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.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 11 api.2ip.ua 15 api.2ip.ua 20 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4280 set thread context of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 2892 set thread context of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 -
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_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 1984 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 1984 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4280 wrote to memory of 4420 4280 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 83 PID 4420 wrote to memory of 4568 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 85 PID 4420 wrote to memory of 4568 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 85 PID 4420 wrote to memory of 4568 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 85 PID 4420 wrote to memory of 2892 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 86 PID 4420 wrote to memory of 2892 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 86 PID 4420 wrote to memory of 2892 4420 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 86 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89 PID 2892 wrote to memory of 1984 2892 JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4420 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a192849d-9306-4228-a914-ddde9e6721ed" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:4568
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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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
MD522346c773de5314b3fb9f0339a5266ba
SHA15dc29e06b46e1fa9779fe9fb8a0ce57f30a6e879
SHA256d1257c961b655e6651ef520d3884c81998e06714dc4e0d295022d9b4538326ab
SHA512c305f4ae7f96589c27f05838bc726eb541370e08f4903694bbda2263db6e132cfe48a2c106180f84e0c62ca8474f15a6d21dea985636b07995e9c2086ef89869
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5efd2caa954454e9e0ce1eb14c73bf465
SHA180ffd54d2349bc2dad30d6c3d14a78a7e079c348
SHA2565405c9a8d33c45aadc38f56037b7be79134518e6982bce0029de117972ef89a8
SHA512a3e59249e7b0e920d4e70abe53f7866b436b8e93aacc8be1a4a016d2d8be26af59a87c7b7cb87c2e2bef8be4400382ac3d47fc348e3dd59e9f47a8957ab98e31
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C:\Users\Admin\AppData\Local\a192849d-9306-4228-a914-ddde9e6721ed\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Filesize800KB
MD5215ef8c9fd78b2413067cafab6c84f40
SHA147cbc8b9298d6a43c6699b6ce8325951f0d98a9b
SHA256cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353
SHA5120b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb