89f4f79ac4d11f9d5edc1db5526dbc6705c528b3a48d7c103906be084bf91b23

Analysis

max time kernel
121s
max time network
147s
platform
windows10_x64
resource
win10-en-20211208
submitted
09-12-2021 09:34

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General

Target

tmp/89f4f79ac4d11f9d5edc1db5526dbc6705c528b3a48d7c103906be084bf91b23.xls
Size

229KB
MD5

cacad265519e30042811c7a30dcda471
SHA1

b82bafb6fbf9d10439bdfa9282df77aa6bfc9fdc
SHA256

89f4f79ac4d11f9d5edc1db5526dbc6705c528b3a48d7c103906be084bf91b23
SHA512

f29d90114eed77e4b0cf4753d2302e419b156161ea02812c29c78a102a443c07d0b6e9fba227439f44bc87473e601ccd5f768ec9629e8de985f0281e21745658

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3832 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	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\tmp\89f4f79ac4d11f9d5edc1db5526dbc6705c528b3a48d7c103906be084bf91b23.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3832

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/3832-115-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/3832-116-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/3832-117-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/3832-118-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/3832-119-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/3832-121-0x000002181D380000-0x000002181D382000-memory.dmp

Filesize
8KB

Download
memory/3832-120-0x000002181D380000-0x000002181D382000-memory.dmp

Filesize
8KB

Download
memory/3832-122-0x000002181D380000-0x000002181D382000-memory.dmp

Filesize
8KB

Download