22af67a455f93e3cbf68984ffa4cd2f31573dfc106c9d5a71b73cf1924421ced

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:22

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General

Target

22af67a455f93e3cbf68984ffa4cd2f31573dfc106c9d5a71b73cf1924421ced.xls
Size

36KB
MD5

9a9c80f29b1ad4bfdb790709a8390f99
SHA1

edea6709ff33ea73e89d7f192deac8eb97d958f1
SHA256

22af67a455f93e3cbf68984ffa4cd2f31573dfc106c9d5a71b73cf1924421ced
SHA512

474df98085fb0c1fd9448151c82019675a8e284490214303af4b1e58e51cffff6b8a12247f51f626ea68a40469c04fc7ea185d8bc408214243aaa4dc7498b56e
SSDEEP

768:IPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJHfX4R6/bAoZy/YS9oR:kok3hbdlylKsgqopeJBWhZFGkE+cL2Ni

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.

Processes:

explorer.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4288	1492	explorer.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1492 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 1492 wrote to memory of 4288	1492	EXCEL.EXE	explorer.exe
PID 1492 wrote to memory of 4288	1492	EXCEL.EXE	explorer.exe
PID 1420 wrote to memory of 4512	1420	explorer.exe	WScript.exe
PID 1420 wrote to memory of 4512	1420	explorer.exe	WScript.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\22af67a455f93e3cbf68984ffa4cd2f31573dfc106c9d5a71b73cf1924421ced.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1492

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\da2Z2Udj.vbs
2⤵
- Process spawned unexpected child process
PID:4288

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\da2Z2Udj.vbs"
2⤵
PID:4512

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Public\Documents\da2Z2Udj.vbs
Filesize
561B

MD5
056d7af7dccc33ac11acebb9dede7466

SHA1
65e7c06c4fe520ea6ca4ad4d98cc51d33589354c

SHA256
fea2258703fd037f614df53a92514b7edcd530cb950262ea1b38a043071a09a6

SHA512
5343a6dfcb8b24769ee14b3f76f3f51e478db8370ea8eb8ed1c9712544828b2b0e271022abe807c1d32b371c306f7b67399eab0132b7d6bdcbc80a0ce046f372

Download Submit
memory/1492-132-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/1492-133-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/1492-134-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/1492-135-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/1492-136-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/1492-137-0x00007FFE81370000-0x00007FFE81380000-memory.dmp

Filesize
64KB

Download
memory/1492-138-0x00007FFE81370000-0x00007FFE81380000-memory.dmp

Filesize
64KB

Download
memory/4288-139-0x0000000000000000-mapping.dmp

Download
memory/4512-141-0x0000000000000000-mapping.dmp

Download