66d9b8923b9a0eadbbce1ab82a98abca897fe501c1e2f9b3f9544699531c5aad

Analysis

max time kernel
173s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28-11-2022 11:41

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General

Target

66d9b8923b9a0eadbbce1ab82a98abca897fe501c1e2f9b3f9544699531c5aad.xls
Size

168KB
MD5

d01eaca985792a1b15548daf5b12696c
SHA1

1c42d5430ba49e183c354937c3361dd32d6fcc2e
SHA256

66d9b8923b9a0eadbbce1ab82a98abca897fe501c1e2f9b3f9544699531c5aad
SHA512

bc06cb9da277123b267a2b052e3388d944437011c25df802a652d8808cd76484b05adce4d0ed6476687adafcc8c9f246451f6f28ad3931ec47da37f9816b0259
SSDEEP

1536:hHHHDsHJNP/XlLd2xr6W3c0NQl2GedB2WHNslU7pkwhW3Gwms7UnjgjVsevP6x1X:ewhWPUc7SxwsbyCdgA

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

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

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

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1168 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

1168 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1168 EXCEL.EXE
1168 EXCEL.EXE
1168 EXCEL.EXE

pid	process
1168	EXCEL.EXE

pid	process
1168	EXCEL.EXE

pid	process
1168	EXCEL.EXE
1168	EXCEL.EXE
1168	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1168 wrote to memory of 1112	1168	EXCEL.EXE	splwow64.exe
PID 1168 wrote to memory of 1112	1168	EXCEL.EXE	splwow64.exe
PID 1168 wrote to memory of 1112	1168	EXCEL.EXE	splwow64.exe
PID 1168 wrote to memory of 1112	1168	EXCEL.EXE	splwow64.exe

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\66d9b8923b9a0eadbbce1ab82a98abca897fe501c1e2f9b3f9544699531c5aad.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1112

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1112-59-0x0000000000000000-mapping.dmp

Download
memory/1112-60-0x000007FEFC341000-0x000007FEFC343000-memory.dmp

Filesize
8KB

Download
memory/1168-54-0x000000002F801000-0x000000002F804000-memory.dmp

Filesize
12KB

Download
memory/1168-55-0x0000000071C11000-0x0000000071C13000-memory.dmp

Filesize
8KB

Download
memory/1168-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1168-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp

Filesize
44KB

Download
memory/1168-58-0x0000000076401000-0x0000000076403000-memory.dmp

Filesize
8KB

Download
memory/1168-61-0x000000006D301000-0x000000006D303000-memory.dmp

Filesize
8KB

Download
memory/1168-62-0x0000000072BFD000-0x0000000072C08000-memory.dmp

Filesize
44KB

Download