5742b2981c5f4f6aaca7b85d76747498b65ff13d6505b5682649fd2827334c52

Analysis

max time kernel
151s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 11:48

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General

Target

5742b2981c5f4f6aaca7b85d76747498b65ff13d6505b5682649fd2827334c52.xls
Size

250KB
MD5

b44c5f6bb87ff7fffa5aab94bfcdf716
SHA1

9996e6e68bec8bc561817e7f18e1af7622531f69
SHA256

5742b2981c5f4f6aaca7b85d76747498b65ff13d6505b5682649fd2827334c52
SHA512

c69ccd1ed8f306bb58bbdd3ba28b458cbe48bb6e579472a2feb67817d9d9a39611b2b94468c8544eefae5bc3e3cdffde3f3258fbc16246a2f6fa65647d8e4c6f
SSDEEP

1536:6MMMQ9hx8uVoE1qrTP+qOhH6ucp9lIjMJip7nFxgqo9TEnaFL9zy+mA08gwcUAgt:fEnaFLcN1BKhLUs1xHFn2GFSI

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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1552 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

1552 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1552 EXCEL.EXE
1552 EXCEL.EXE
1552 EXCEL.EXE

pid	process
1552	EXCEL.EXE

pid	process
1552	EXCEL.EXE

pid	process
1552	EXCEL.EXE
1552	EXCEL.EXE
1552	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1552 wrote to memory of 1476	1552	EXCEL.EXE	splwow64.exe
PID 1552 wrote to memory of 1476	1552	EXCEL.EXE	splwow64.exe
PID 1552 wrote to memory of 1476	1552	EXCEL.EXE	splwow64.exe
PID 1552 wrote to memory of 1476	1552	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\5742b2981c5f4f6aaca7b85d76747498b65ff13d6505b5682649fd2827334c52.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:1552

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1476

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/1476-59-0x0000000000000000-mapping.dmp

Download
memory/1476-60-0x000007FEFBB71000-0x000007FEFBB73000-memory.dmp

Filesize
8KB

Download
memory/1552-54-0x000000002F6C1000-0x000000002F6C4000-memory.dmp

Filesize
12KB

Download
memory/1552-55-0x0000000071361000-0x0000000071363000-memory.dmp

Filesize
8KB

Download
memory/1552-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1552-57-0x000000007234D000-0x0000000072358000-memory.dmp

Filesize
44KB

Download
memory/1552-58-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download
memory/1552-61-0x000000006CB01000-0x000000006CB03000-memory.dmp

Filesize
8KB

Download
memory/1552-62-0x000000007234D000-0x0000000072358000-memory.dmp

Filesize
44KB

Download