Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 21:22
Behavioral task
behavioral1
Sample
eec91171396a2b47a16b97c885482b21189a8d7917aa1493bfe1bff654d84a3b.xls
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
eec91171396a2b47a16b97c885482b21189a8d7917aa1493bfe1bff654d84a3b.xls
Resource
win10v2004-20241007-en
General
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Target
eec91171396a2b47a16b97c885482b21189a8d7917aa1493bfe1bff654d84a3b.xls
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Size
91KB
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MD5
34a2633ea06672b6df4627d64d308d00
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SHA1
c685f4d69a617e5f2dadf6eec83c7c3f269660a4
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SHA256
eec91171396a2b47a16b97c885482b21189a8d7917aa1493bfe1bff654d84a3b
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SHA512
8b240343d2f5b62a026d0c871267d405e160545b14d6195b5de5630762f3d58dbc13c01517de7b87c250d3613931ea0e40519e8201f6c9c7649854b8e45c6f16
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SSDEEP
1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2bCXuZH4gb4CEn9J4Zqcvp:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgi
Malware Config
Extracted
http://bundlefilm.com/headers/lkfBH3Czw9CjEW07P2/
http://camsanparke.net/wp-content/h2Ja5bwB03hnyfCb/
http://royreid.co.uk/wp-content/dCwG/
https://cs.com.sg/admin/a1lR5wu/
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1460 3880 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3480 3880 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4296 3880 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1872 3880 regsvr32.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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3880 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3880 EXCEL.EXE 3880 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE 3880 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3880 wrote to memory of 1460 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 1460 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 3480 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 3480 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 4296 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 4296 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 1872 3880 EXCEL.EXE regsvr32.exe PID 3880 wrote to memory of 1872 3880 EXCEL.EXE regsvr32.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\eec91171396a2b47a16b97c885482b21189a8d7917aa1493bfe1bff654d84a3b.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3880 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:1460
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3480
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4296
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:1872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize1KB
MD5191c23f1d7647155bcc60177748248aa
SHA19eff339350096ed892757be883332ff6af08139f
SHA2565599be67398669602543a38631cf0c634ded1a82ce26b361278db5e26ca494b2
SHA512bc85a13fbf00ce6082ca9acfc6a58347f1bae7fb82195779ae85c406f340524cb42496f6ec386058c5df6e15300f6d3c09b11aab6bdb2a6fba0a2cdd1c6c4a2d