aa4ef957f1635a0fa6e666dd322abe1e95f634a63755bee3f10045e1fc55ea33

Analysis

max time kernel
108s
max time network
137s
platform
windows10_x64
resource
win10-en-20210920
submitted
18-10-2021 21:11

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General

Target

Invoice-735832084_20211013.xlsb
Size

213KB
MD5

16927c678055767a59f6b511e1ce6658
SHA1

d697082e478814cdcc99cfa942afcd319c0225fc
SHA256

aa4ef957f1635a0fa6e666dd322abe1e95f634a63755bee3f10045e1fc55ea33
SHA512

d445bceb74c01087b763b87ea1881d2b81aa5fd64e8fdb384eef38d3180b2bf39bf793c39c04fff2e6df664cb7a66994bb7434e814e84f2287f59d52ff653735

Score

1^/10

Malware Config

Signatures

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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

392 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.EXE
392	EXCEL.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\Invoice-735832084_20211013.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:392

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

memory/392-115-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmp

Filesize
64KB

Download
memory/392-116-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmp

Filesize
64KB

Download
memory/392-117-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmp

Filesize
64KB

Download
memory/392-118-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmp

Filesize
64KB

Download
memory/392-119-0x000001A955AF0000-0x000001A955AF2000-memory.dmp

Filesize
8KB

Download
memory/392-120-0x000001A955AF0000-0x000001A955AF2000-memory.dmp

Filesize
8KB

Download
memory/392-121-0x000001A955AF0000-0x000001A955AF2000-memory.dmp

Filesize
8KB

Download
memory/392-127-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmp

Filesize
64KB

Download