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Analysis
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max time kernel
140s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
09/07/2024, 12:01
Static task
static1
Behavioral task
behavioral1
Sample
304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe
Resource
win10v2004-20240704-en
General
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Target
304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe
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Size
241KB
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MD5
304ad5d91acb84dbcc6c6473f3d39bd9
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SHA1
90c16866ea4131433693deca4d8c8d452dde1861
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SHA256
a11fdb144a24b2be8e6892a2f84dc90a0e33bb040f00f1bc31892ce621a65312
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SHA512
200d10b2b4a58fd1d2f5dd916567097f8bc36b213480fcc1276ff5bb860dba43220ab04b6e9b6e093887d8a93b34632638a8f9c5fb364076f6e3a1c29a4f4640
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SSDEEP
6144:F+qB2naFPH+ns0gBswvP6bQ7yMP+DE827N0GV/5:F+qBlFPH+nh8d6b7MP+Dd2J3
Malware Config
Signatures
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\inf\ram32xp.dll 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe File created C:\Windows\inf\ram65xp.dll 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2524 1244 WerFault.exe 29 -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30 PID 1244 wrote to memory of 2524 1244 304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\304ad5d91acb84dbcc6c6473f3d39bd9_JaffaCakes118.exe"1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1244 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1244 -s 5242⤵
- Program crash
PID:2524
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