Analysis
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max time kernel
31s -
max time network
42s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
06-09-2024 06:18
Behavioral task
behavioral1
Sample
cede243ccb2a1fb81284aa31eb65f126_JaffaCakes118.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cede243ccb2a1fb81284aa31eb65f126_JaffaCakes118.xls
Resource
win10v2004-20240802-en
Errors
General
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Target
cede243ccb2a1fb81284aa31eb65f126_JaffaCakes118.xls
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Size
165KB
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MD5
cede243ccb2a1fb81284aa31eb65f126
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SHA1
d27cff39992cdbe0402fcfd80f5ad297cd95ec53
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SHA256
31caa6f66af8581cd7592d9b0e847127bfb2d28575b188ed178b36c3a7435693
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SHA512
2ee7987429cb24d5489c40f655153f69f77b25dbde828c704e93475d512253fdbc1f2f5fd232ad0b8a56308264f965514629d2e524fd452d179244c27fb04615
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SSDEEP
3072:XScKoSsxzNDZLDZjlbR868O8KlVH3jiKq7uDphYHceXVhca+fMHLtyeGxcl8OUMH:CcKoSsxzNDZLDZjlbR868O8KlVH3jiKS
Malware Config
Extracted
http://artifkt.com/okmobi/certificate.php
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1332 1824 rundll32.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1824 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1824 wrote to memory of 1332 1824 EXCEL.EXE rundll32.exe PID 1824 wrote to memory of 1332 1824 EXCEL.EXE rundll32.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cede243ccb2a1fb81284aa31eb65f126_JaffaCakes118.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\NDks.freas,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize2KB
MD55469cc46184166b9150b19d351609fa4
SHA1347618f96b2899188d3eb6c0269f7f4e4922bfb6
SHA2568fa1eb9d9db90ef9e1747e75522bc0116fa12b4a4e99a64bc40bd64836d581d2
SHA5126dfa2fcaddbdf9ac592c6181d0d8b0bcbd39f92b6b0ca22fae31abbb50b593db3740770894d24d391b6aed81d329147ad1ada44844c8ca0d8e2738749336ff00