Analysis
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max time kernel
140s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
25/08/2024, 09:17
Behavioral task
behavioral1
Sample
c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe
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Size
141KB
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MD5
c06b83f3b18dd8b95c8dbc2768d2bcc4
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SHA1
6945940d41d3d5f12b3f2d984d7a1aadf48a5b14
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SHA256
60e2158617e48257c3b05f55506b363bf826313359815f5a7527613b07bd3d29
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SHA512
0a8dd91ab4b7e7322ea4c32d3b358499b2fab9ec95a869295e0839162816918982e9959920c5a61939355574a6a1c7dd1caf83a83b3a96d515c100d6a741001c
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SSDEEP
3072:sY1qsHZzq7Mex1mc9ek/FmDJF4hNekjNpdoMbOWr/0oaCHWFkBBB:OWmll96F4neeNDYQWS7
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1408 kernels32.exe -
resource yara_rule behavioral2/memory/4888-0-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/files/0x00080000000235ac-7.dat upx behavioral2/memory/1408-8-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/4888-12-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-13-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-16-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-17-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-20-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-21-0x0000000000400000-0x00000000005A7000-memory.dmp upx behavioral2/memory/1408-22-0x0000000000400000-0x00000000005A7000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service System = "\"c:\\windows\\kernels32.exe\"" kernels32.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created \??\c:\windows\kernels32.exe c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe File opened for modification \??\c:\windows\kernels32.exe c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe File created C:\Windows\ieupdate.dat kernels32.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 c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language kernels32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4888 c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe 1408 kernels32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4888 wrote to memory of 1408 4888 c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe 91 PID 4888 wrote to memory of 1408 4888 c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe 91 PID 4888 wrote to memory of 1408 4888 c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c06b83f3b18dd8b95c8dbc2768d2bcc4_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4888 -
\??\c:\windows\kernels32.exec:\windows\kernels32.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1408
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3056,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:81⤵PID:4436
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
141KB
MD5c06b83f3b18dd8b95c8dbc2768d2bcc4
SHA16945940d41d3d5f12b3f2d984d7a1aadf48a5b14
SHA25660e2158617e48257c3b05f55506b363bf826313359815f5a7527613b07bd3d29
SHA5120a8dd91ab4b7e7322ea4c32d3b358499b2fab9ec95a869295e0839162816918982e9959920c5a61939355574a6a1c7dd1caf83a83b3a96d515c100d6a741001c