b122229c18c917bd09c8ec02ff56df02a781b588ed98a2ffb0bfcfc8315fcc04

Analysis

max time kernel
98s
max time network
131s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 09:48

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Report Analysis Logs

General

Target

Invoice.6794.xlsb
Size

162KB
MD5

8b5146fe001072bc9b54d76e9f9212c4
SHA1

b795d16f7558ff93e44ab50d65d7f83f604ef8c8
SHA256

b122229c18c917bd09c8ec02ff56df02a781b588ed98a2ffb0bfcfc8315fcc04
SHA512

83c04aadcd2c19c2a00bd7ee569b57e85be9fce2e6ad33e700dd6473899481c0bef3d65a61be06564d280fbeceb9292c63169b08c80a13420e4f224828688d2e

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 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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3736 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	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.6794.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3736

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/3736-115-0x00007FFC1A9F0000-0x00007FFC1AA00000-memory.dmp

Filesize
64KB

Download
memory/3736-116-0x00007FFC1A9F0000-0x00007FFC1AA00000-memory.dmp

Filesize
64KB

Download
memory/3736-117-0x00007FFC1A9F0000-0x00007FFC1AA00000-memory.dmp

Filesize
64KB

Download
memory/3736-118-0x00007FFC1A9F0000-0x00007FFC1AA00000-memory.dmp

Filesize
64KB

Download
memory/3736-119-0x00007FFC1A9F0000-0x00007FFC1AA00000-memory.dmp

Filesize
64KB

Download
memory/3736-120-0x00000258B1530000-0x00000258B1532000-memory.dmp

Filesize
8KB

Download
memory/3736-121-0x00000258B1530000-0x00000258B1532000-memory.dmp

Filesize
8KB

Download
memory/3736-122-0x00000258B1530000-0x00000258B1532000-memory.dmp

Filesize
8KB

Download