Analysis
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max time kernel
140s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/11/2024, 00:56
Static task
static1
Behavioral task
behavioral1
Sample
8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe
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Size
124KB
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MD5
8e5aa79fe68b88513435f0bcb03dddae
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SHA1
44593785540e3eca297ab2335284fd2ed5bbea76
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SHA256
df4a00cefda94fd8e9c271d1aca219d8c7f3615417749ab4d25e2892f863c386
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SHA512
eaf7fd6ae8bee9608635cbaa1f083e64f52b026fbe0ba661703af538559cbe60733ea5d445a65bf3682a7c8f7b657c276284e9fe7a8cbc06157e8266c69c128e
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SSDEEP
3072:QQnN2PZAx2VmK3L3E+MtxmePYiwwlUDRtthL:WRVbEFthb7lUDRDhL
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" msiexec.exe -
Adds policy Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1619438023 = "C:\\PROGRA~3\\msskva.exe" msiexec.exe -
Disables taskbar notifications via registry modification
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Deletes itself 1 IoCs
pid Process 1716 msiexec.exe -
Blocklisted process makes network request 7 IoCs
flow pid Process 8 1716 msiexec.exe 11 1716 msiexec.exe 14 1716 msiexec.exe 52 1716 msiexec.exe 54 1716 msiexec.exe 81 1716 msiexec.exe 82 1716 msiexec.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\PROGRA~3\241140593 msiexec.exe File opened for modification C:\PROGRA~3\msskva.exe msiexec.exe File created C:\PROGRA~3\msskva.exe msiexec.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 1716 msiexec.exe 1716 msiexec.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1716 msiexec.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2072 wrote to memory of 1716 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 89 PID 2072 wrote to memory of 1716 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 89 PID 2072 wrote to memory of 1716 2072 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\SysWOW64\msiexec.exe"C:\Windows\system32\msiexec.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Adds policy Run key to start application
- Deletes itself
- Blocklisted process makes network request
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1716
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