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Analysis
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max time kernel
144s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
29/08/2024, 05:41
Static task
static1
Behavioral task
behavioral1
Sample
c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
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Size
323KB
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MD5
c84eaddea738ab53f0d577957be252c6
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SHA1
babff72c370a221469ea00d75975ce82860c69df
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SHA256
eb7d1c36b5beed937341b188d4b174f953348b364d2b726322f7b2de7222052c
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SHA512
c536d2e392ec58fd92d445e7a4fcc118a3dffc10ca178aec05dfb0d24b89e877eddb490f7fd837a4addd0b19e99e3dea343dce87aeec2063d4b5784775ba8e45
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SSDEEP
6144:gl+340H7xeCBg3VbraHRi7bsFxmeAqTjhIimf7Nx3AkxENpJBkH1M2:oOP79Bgtwi7wxmeAqT9KBx3AkxENpJqn
Malware Config
Signatures
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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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe -
resource yara_rule behavioral2/memory/4704-0-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-3-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-4-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-5-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-6-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-7-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-8-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-17-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-18-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-23-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-24-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-25-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-27-0x0000000000400000-0x00000000004A5000-memory.dmp upx behavioral2/memory/4704-29-0x0000000000400000-0x00000000004A5000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BMP = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe /cs:1 " c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BMP = "\"C:\\b38539\\BMb38_2180.exe\" /s" c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe -
Checks for any installed AV software in registry 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Eset\Nod\ c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1116 set thread context of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 -
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 3 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 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe -
Kills process with taskkill 1 IoCs
pid Process 3616 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3616 taskkill.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1116 wrote to memory of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 PID 1116 wrote to memory of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 PID 1116 wrote to memory of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 PID 1116 wrote to memory of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 PID 1116 wrote to memory of 4704 1116 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 91 PID 4704 wrote to memory of 3616 4704 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 92 PID 4704 wrote to memory of 3616 4704 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 92 PID 4704 wrote to memory of 3616 4704 c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Checks for any installed AV software in registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Windows\SysWOW64\taskkill.exetaskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3616
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1