Analysis
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max time kernel
147s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
24-09-2024 09:28
Static task
static1
Behavioral task
behavioral1
Sample
f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe
Resource
win7-20240903-en
General
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Target
f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe
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Size
78KB
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MD5
f3554f93e653108c6cf12edd54db05ae
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SHA1
af9f2009ccc0e26f2a4ff32f0c7903cc37d460c6
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SHA256
e350efd69893b28033dfa6ba293f402c04281453c766022a266ae6be6fbe31aa
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SHA512
a8f7ea2a5ec7ededaa1f62b47e598f47a44de4b5a87dc66f79f0ca651c661eaa06cf70721f36466ab51065c58502f1ce8b1a4c13bd3cecba741e29e960dc6fe7
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SSDEEP
1536:GHSpeffJzpa4PKvvMupbRzh7mI565HrVTblQfqA:GHSpefhpa4PKHffw9hTSf
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat bulkflow.exe -
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 4 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 bulkflow.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bulkflow.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe -
Modifies data under HKEY_USERS 21 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix bulkflow.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" bulkflow.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A}\WpadDecision = "0" bulkflow.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-44-db-f6-fe-76\WpadDecisionReason = "1" bulkflow.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-44-db-f6-fe-76\WpadDecision = "0" bulkflow.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad bulkflow.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0069000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 bulkflow.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A}\WpadDecisionTime = f097b338640edb01 bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-44-db-f6-fe-76 bulkflow.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-44-db-f6-fe-76\WpadDecisionTime = f097b338640edb01 bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings bulkflow.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 bulkflow.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A} bulkflow.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A}\WpadNetworkName = "Network 3" bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A}\52-44-db-f6-fe-76 bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections bulkflow.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" bulkflow.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings bulkflow.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7A2692CA-C1E5-490E-AC66-E27068979F7A}\WpadDecisionReason = "1" bulkflow.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3012 bulkflow.exe 3012 bulkflow.exe 3012 bulkflow.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2412 f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2116 wrote to memory of 2412 2116 f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe 30 PID 2116 wrote to memory of 2412 2116 f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe 30 PID 2116 wrote to memory of 2412 2116 f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe 30 PID 2116 wrote to memory of 2412 2116 f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe 30 PID 2860 wrote to memory of 3012 2860 bulkflow.exe 32 PID 2860 wrote to memory of 3012 2860 bulkflow.exe 32 PID 2860 wrote to memory of 3012 2860 bulkflow.exe 32 PID 2860 wrote to memory of 3012 2860 bulkflow.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Users\Admin\AppData\Local\Temp\f3554f93e653108c6cf12edd54db05ae_JaffaCakes118.exe--38c95f6f2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
PID:2412
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C:\Windows\SysWOW64\bulkflow.exe"C:\Windows\SysWOW64\bulkflow.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Windows\SysWOW64\bulkflow.exe--ddfb0c722⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:3012
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