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Analysis
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max time kernel
148s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2024, 13:02
Static task
static1
Behavioral task
behavioral1
Sample
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
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Size
772KB
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MD5
cd220a082a015e31b48905223ae4d90e
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SHA1
4763eb2dcdf87d07dd18e176e21e3a676aa79bf4
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SHA256
cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1
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SHA512
d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b
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SSDEEP
12288:ysbay2bWS7Njlewp2ibfsI4/nX/tE59zXgWwfgLoS1F2K2EglvP8j9C5DY:ysbaLb33Tp2w0RntgzyoV/2EQvw9
Malware Config
Extracted
djvu
http://astdg.top/fhsgtsspen6/get.php
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extension
.reqg
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offline_id
ioYmb0jtMMtue7xjmkS3WQWGWLR8FTQhb2giQtt1
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payload_url
http://securebiz.org/dl/build2.exe
http://astdg.top/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 19 IoCs
resource yara_rule behavioral2/memory/336-2-0x0000000004BC0000-0x0000000004CDB000-memory.dmp family_djvu behavioral2/memory/848-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/848-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/848-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/848-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/848-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1088-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1088-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2812-364-0x0000000000400000-0x0000000000537000-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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Renames multiple (150) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Executes dropped EXE 2 IoCs
pid Process 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 1088 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3008 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a81b897b-e7c3-4b32-8533-7e14b1173abc\\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe\" --AutoStart" cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 53 api.2ip.ua 11 api.2ip.ua 12 api.2ip.ua 18 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 336 set thread context of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 780 set thread context of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 3988 set thread context of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 -
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 7 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 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2812 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2812 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 1088 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 1088 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2812 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2812 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 336 wrote to memory of 848 336 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 84 PID 848 wrote to memory of 3008 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 85 PID 848 wrote to memory of 3008 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 85 PID 848 wrote to memory of 3008 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 85 PID 848 wrote to memory of 780 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 86 PID 848 wrote to memory of 780 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 86 PID 848 wrote to memory of 780 848 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 86 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 780 wrote to memory of 2812 780 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 88 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99 PID 3988 wrote to memory of 1088 3988 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:336 -
C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.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:848 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3008
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C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:780 -
C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2812
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C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exeC:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exeC:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1088
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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
MD5e61851c9aaf248295e42f8f2483d3eb3
SHA17097d5d9283cf66f7c96ee514e666a4be5e7e638
SHA2563bff562370467a3e2dce396d6e9a0539c05b721357508173e110a2a080a9f9dc
SHA5124b6163b95c92a435c096426b8b12203ceb92b6b3a29d744d63fa67032c3f719b78fafccaf1a3f12d04175a1ac2de49c461505f0c6e040d1ac11a8ed0b8bdf90b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5e11ff870e823e0d3db523efa9809f89a
SHA1c051225a9eaf1ae2df31f9500cac6b03d9ab1b5b
SHA256c28b958810d79fa7f8cfe438491570b120669dc4a6544e1482df0290f6e60ff9
SHA5120d2135539d5a64cb857f7198388c0a7c9c3a762042a6da192732e24461d6976be63fb2e8b7761b4646955c1a888727c63048c43c1e426a3dbdf2886bc1f35c3b
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C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Filesize772KB
MD5cd220a082a015e31b48905223ae4d90e
SHA14763eb2dcdf87d07dd18e176e21e3a676aa79bf4
SHA256cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1
SHA512d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b