Analysis
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max time kernel
144s -
max time network
134s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
19-05-2021 17:45
Behavioral task
behavioral1
Sample
cancel_sub_JPL12345678901234.xlsb
Resource
win7v20210410
Behavioral task
behavioral2
Sample
cancel_sub_JPL12345678901234.xlsb
Resource
win10v20210410
General
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Target
cancel_sub_JPL12345678901234.xlsb
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Size
267KB
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MD5
21a57dbd1dad6aec8edbbaeddabac81b
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SHA1
f20bdcb3970bc9fabfff60628a71cfe318d4efe9
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SHA256
42aeef1b5f9d53105bd3d9076b7634e1eed53f89c9e3577426f4c51441e4fca4
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SHA512
a2339ff6347d6d3dff885b8317de5a87df589462052ac2c6dc8fb09715aca149379bc7e71e7c1ba2ccae976e7d0d4d1790971db6dc92b57ab35810953bc73563
Malware Config
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:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3848 3456 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 30 2144 rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 2144 rundll32.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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE 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 -
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 3456 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE 3456 EXCEL.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
EXCEL.EXEcmd.exerundll32.exedescription pid process target process PID 3456 wrote to memory of 2588 3456 EXCEL.EXE splwow64.exe PID 3456 wrote to memory of 2588 3456 EXCEL.EXE splwow64.exe PID 3456 wrote to memory of 3848 3456 EXCEL.EXE cmd.exe PID 3456 wrote to memory of 3848 3456 EXCEL.EXE cmd.exe PID 3848 wrote to memory of 1380 3848 cmd.exe certutil.exe PID 3848 wrote to memory of 1380 3848 cmd.exe certutil.exe PID 3848 wrote to memory of 1952 3848 cmd.exe rundll32.exe PID 3848 wrote to memory of 1952 3848 cmd.exe rundll32.exe PID 1952 wrote to memory of 2144 1952 rundll32.exe rundll32.exe PID 1952 wrote to memory of 2144 1952 rundll32.exe rundll32.exe PID 1952 wrote to memory of 2144 1952 rundll32.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\cancel_sub_JPL12345678901234.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3456 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2588
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C:\Windows\SYSTEM32\cmd.execmd.exe /c certutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs2 && rundll32 C:\Users\Public\4802545.xs2,DF12⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3848 -
C:\Windows\system32\certutil.execertutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs23⤵PID:1380
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C:\Windows\system32\rundll32.exerundll32 C:\Users\Public\4802545.xs2,DF13⤵
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\rundll32.exerundll32 C:\Users\Public\4802545.xs2,DF14⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2144
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
bcbb70f4818be65832fe12ddac0c7f80
SHA174174bb01ac70ddc2fbd1e978e8b676df6e1779f
SHA25600443251583e39c29345f79bd1233dbcc8f4cb1ba5866d0e6b534124d3c6b80d
SHA5125405ce84f14268e41b53d0ed964473b10aebb110df8e0a9257bb30aad29f87997e46f9a83e5103ce4c41a4a8c80e7c921cff76ed48c6deeee7a49a9204dffbfa
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MD5
ad7af24cebc0eb9fc18ea4d92252b664
SHA123caf9b06a47d3071d42e9dc11f6e6818614bb9f
SHA2562bc60e31f8058d1be2517a27888d799229fd2a5c2b260be650d4446102ed55cc
SHA51246afee95f7149cd304f10b06e7d7da8d922ac43b82ef7b4071fc3bdf618245ae9b33603b742506e0d95a27b1188bc242cd8473b020d8fdbe37526c2556a23361
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MD5
ad7af24cebc0eb9fc18ea4d92252b664
SHA123caf9b06a47d3071d42e9dc11f6e6818614bb9f
SHA2562bc60e31f8058d1be2517a27888d799229fd2a5c2b260be650d4446102ed55cc
SHA51246afee95f7149cd304f10b06e7d7da8d922ac43b82ef7b4071fc3bdf618245ae9b33603b742506e0d95a27b1188bc242cd8473b020d8fdbe37526c2556a23361