b916ee9ac5a31baa984fa1f21caa27f09e4441862a49de9173c5ee69866794c1

Analysis

max time kernel
173s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30-03-2023 23:34

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General

Target

SecuriteInfo.com.XF.AShadow.1000.5196.20073.xls
Size

36KB
MD5

e54f72b1de3e97efe28c97470d3b00f3
SHA1

1eeed3b2fd10ff8f2b61237d23648e086fca677d
SHA256

b916ee9ac5a31baa984fa1f21caa27f09e4441862a49de9173c5ee69866794c1
SHA512

95a2359880fa090d93031cfe86788713007294ff01e996c3c03c7bf4e824b355f7a1056a1a4d3b3f51e5b0e40ec170439d99ea8b9cc216ba9fa862aee28209db
SSDEEP

768:2PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ+Q+5hrCaI58tfC9HY:Kok3hbdlylKsgqopeJBWhZFGkE+cL2ND

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	1396	1444	explorer.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

WScript.exe

flow pid process

16 3480 WScript.exe
25 3480 WScript.exe

flow	pid	process
16	3480	WScript.exe
25	3480	WScript.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-1-5-21-1675742406-747946869-1029867430-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1444 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

1444 EXCEL.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

EXCEL.EXE

pid process

1444 EXCEL.EXE
1444 EXCEL.EXE
1444 EXCEL.EXE
1444 EXCEL.EXE
1444 EXCEL.EXE
1444 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\Local Settings	explorer.exe

pid	process
1444	EXCEL.EXE

pid	process
1444	EXCEL.EXE

pid	process
1444	EXCEL.EXE
1444	EXCEL.EXE
1444	EXCEL.EXE
1444	EXCEL.EXE
1444	EXCEL.EXE
1444	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 1444 wrote to memory of 1396	1444	EXCEL.EXE	explorer.exe
PID 1444 wrote to memory of 1396	1444	EXCEL.EXE	explorer.exe
PID 1916 wrote to memory of 3480	1916	explorer.exe	WScript.exe
PID 1916 wrote to memory of 3480	1916	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\SecuriteInfo.com.XF.AShadow.1000.5196.20073.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\a5HLkv.vbs
2⤵
- Process spawned unexpected child process
PID:1396

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1916

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\a5HLkv.vbs"
2⤵
- Blocklisted process makes network request
PID:3480

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\a5HLkv.vbs
Filesize
557B

MD5
00f50fd4baee7ea9200bfdfea34168c2

SHA1
2ce6a61bf424bb715bee41b7284a65e8b99cb556

SHA256
4426bd181f247e14b421c015baa40415192abb324b683ba57b3699883bdc2708

SHA512
203ff77232dd3d6df97aec064cc5152191413e36260807acd6cbaa6f89a9288470037792885b3076088e53869493bbfca1654ac013dbd340ddcd1ab0ab4965d7

Download Submit
memory/1444-133-0x00007FF8912D0000-0x00007FF8912E0000-memory.dmp

Filesize
64KB

Download
memory/1444-134-0x00007FF8912D0000-0x00007FF8912E0000-memory.dmp

Filesize
64KB

Download
memory/1444-135-0x00007FF8912D0000-0x00007FF8912E0000-memory.dmp

Filesize
64KB

Download
memory/1444-136-0x00007FF8912D0000-0x00007FF8912E0000-memory.dmp

Filesize
64KB

Download
memory/1444-137-0x00007FF8912D0000-0x00007FF8912E0000-memory.dmp

Filesize
64KB

Download
memory/1444-138-0x00007FF88EC90000-0x00007FF88ECA0000-memory.dmp

Filesize
64KB

Download
memory/1444-139-0x00007FF88EC90000-0x00007FF88ECA0000-memory.dmp

Filesize
64KB

Download