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Analysis
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max time kernel
14s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
18/08/2024, 07:51
Behavioral task
behavioral1
Sample
a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
Resource
win7-20240704-en
General
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Target
a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
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Size
21KB
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MD5
a5f9be8097101861e6ec3e8c7253e6bf
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SHA1
7609c2d84d697ad69b90fbc1857df003b1a017ad
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SHA256
8990bd5ee8f0b6dd86e39d332ccd59955d4eb1295141409ffada1826c01ef317
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SHA512
d8a3147ace7dfa26c010230029c9ec0c13d924a4ceab8fffb7fab8f6cc28cefd257c15eab2434a9065f19f24440ae58f927fba76f2690a58c5f7dd39a53cf4ff
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SSDEEP
384:mIiV728hUQ7Y2P/cVEccDdye7kjlWLe7grPiA8jyrMPhTjanbBoZLrfaNJawcudu:mRGuY2P0Vo6r7SiAwyrMRjb1inbcuyDs
Malware Config
Signatures
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Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1" reg.exe -
resource yara_rule behavioral1/memory/1944-0-0x0000000000400000-0x0000000000410000-memory.dmp upx behavioral1/memory/1944-17-0x0000000000400000-0x0000000000410000-memory.dmp upx -
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 a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main reg.exe -
Modifies Internet Explorer start page 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "www.estudisco.com" reg.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1944 wrote to memory of 2016 1944 a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe 29 PID 1944 wrote to memory of 2016 1944 a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe 29 PID 1944 wrote to memory of 2016 1944 a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe 29 PID 1944 wrote to memory of 2016 1944 a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe 29 PID 2016 wrote to memory of 2844 2016 cmd.exe 31 PID 2016 wrote to memory of 2844 2016 cmd.exe 31 PID 2016 wrote to memory of 2844 2016 cmd.exe 31 PID 2016 wrote to memory of 2844 2016 cmd.exe 31 PID 2016 wrote to memory of 2876 2016 cmd.exe 32 PID 2016 wrote to memory of 2876 2016 cmd.exe 32 PID 2016 wrote to memory of 2876 2016 cmd.exe 32 PID 2016 wrote to memory of 2876 2016 cmd.exe 32 PID 2016 wrote to memory of 2864 2016 cmd.exe 33 PID 2016 wrote to memory of 2864 2016 cmd.exe 33 PID 2016 wrote to memory of 2864 2016 cmd.exe 33 PID 2016 wrote to memory of 2864 2016 cmd.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\1ED6.tmp\estudisco.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\SysWOW64\reg.exereg add "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d "www.estudisco.com" /t "REG_SZ" /f3⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:2844
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C:\Windows\SysWOW64\reg.exereg add "HKEY_CURRENT_USER\Software\Policies\Microsoft\internet Explorer\Control Panel" /v "Homepage" /d "1" /t "REG_DWORD" /f3⤵
- System Location Discovery: System Language Discovery
PID:2876
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C:\Windows\SysWOW64\reg.exereg add HKEY_current_user\software\microsoft\windows\currentversion\policies\system /v DisableRegistryTools /t reg_dword /d 000000013⤵
- Disables RegEdit via registry modification
- System Location Discovery: System Language Discovery
PID:2864
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
487B
MD5339f90d46b7cb0fa0dd4edd9876731cb
SHA1569a161b9b6a3714fb3b4dc4569200af03da8e06
SHA2567814d527a22e3468ce38b5934b5118f3e64b8d9ed6a69c7efb177ef8c955ec06
SHA512cbc7c0f6f1b74926138c5e9ac40f23d42dd035228ca4928f0bce4d3712aae17bc361c9f3d162d8f79bed56452d8856ea870fae72c55bbddcd649fb26d2f9a33c