67c4d07b201aec241072cc7d159e8bb7bd126b28a6f666fd1273cc17a8f3be92

Analysis

max time kernel
126s
max time network
144s
platform
windows10_x64
resource
win10-en-20211014
submitted
28-10-2021 10:38

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General

Target

mslog.xlsx
Size

443KB
MD5

c4fef59db8ea4e3545ff2642accddc32
SHA1

5a3f9660eff6141f622370893d8c0e9b2259fe33
SHA256

67c4d07b201aec241072cc7d159e8bb7bd126b28a6f666fd1273cc17a8f3be92
SHA512

8ce33194e6bebe3f1bebd164174cf7c9fed0e5ccea07c325375c33ab53e6be39375e47a12b28162d570da758a44735adcb263e6f4ed96b87891e2a5be7fe7051

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

3984 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	EXCEL.EXE
3984	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\mslog.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3984

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/3984-115-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/3984-116-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/3984-117-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/3984-118-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/3984-119-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/3984-120-0x000002808D900000-0x000002808D902000-memory.dmp

Filesize
8KB

Download
memory/3984-121-0x000002808D900000-0x000002808D902000-memory.dmp

Filesize
8KB

Download
memory/3984-122-0x000002808D900000-0x000002808D902000-memory.dmp

Filesize
8KB

Download