a4dc3c7bca9601bf642e6df0f9baea765a78265fdd20a5bb0aec36ab488dc278

General

Target
8650.xlsm
Size 16KB
Sample201113-8esjclx352
SHA256 a4dc3c7bca9601bf642e6df0f9baea765a78265fdd20a5bb0aec36ab488dc278
MD5 98bf77e681e28286e129381832cf83be
SHA1 1baf3c700a4ec774c474d97c10dd656ded2a1040
SHA512 30a35db7f3932ba5743341ae66fb34851baffc8d6c866356ef8cbeccf29c03c35d4fb1c7e55e9f194e64e892d0f16b527312a546580e71ec74d467904ef61c6b
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	876	1732	reg.exe	24

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1732	EXCEL.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1732	EXCEL.EXE

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1732	EXCEL.EXE
1732	EXCEL.EXE
1732	EXCEL.EXE
1732	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 876	1732	EXCEL.EXE	29
PID 1732 wrote to memory of 876	1732	EXCEL.EXE	29
PID 1732 wrote to memory of 876	1732	EXCEL.EXE	29
PID 1732 wrote to memory of 876	1732	EXCEL.EXE	29

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\8650.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\reg.exe
  "C:\Windows\system32\reg.exe" EXPORT HKCU\Software\Microsoft\Office\14.0\Excel\Security C:\Users\Public\Ch66.reg /y
  2⤵
  - Process spawned unexpected child process
  PID:876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1732-0-0x0000000005D10000-0x0000000005D11000-memory.dmp

Download

Analysis

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