1e01b6dfb7079c9968271e36853f0d4d368f7c1e1b62b218123a9ff191f8b50c

Analysis

max time kernel
117s
max time network
141s
platform
windows10_x64
resource
win10-en-20211208
submitted
13-12-2021 15:13

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General

Target

41111.xlsx
Size

317KB
MD5

d4fcac78c26af853588db3dee9bb3d8c
SHA1

d66aa498129843c4c23c7eb3e01c93a0ec36b0bc
SHA256

1e01b6dfb7079c9968271e36853f0d4d368f7c1e1b62b218123a9ff191f8b50c
SHA512

35d6cdba46930a9100565b6b355fbaa8a409288710f8386c0c7d8d73fc007e675083fd1e5e331be845962ac2c1a7993297ace47e22aca11982656f869d760437

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

2324 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	EXCEL.EXE
2324	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\41111.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2324

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/2324-115-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/2324-116-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/2324-117-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/2324-118-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/2324-119-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp

Filesize
64KB

Download
memory/2324-120-0x000001FA2ED30000-0x000001FA2ED32000-memory.dmp

Filesize
8KB

Download
memory/2324-121-0x000001FA2ED30000-0x000001FA2ED32000-memory.dmp

Filesize
8KB

Download
memory/2324-122-0x000001FA2ED30000-0x000001FA2ED32000-memory.dmp

Filesize
8KB

Download
memory/2324-128-0x00007FFEEFFC0000-0x00007FFEEFFD0000-memory.dmp

Filesize
64KB

Download
memory/2324-129-0x00007FFEEFFC0000-0x00007FFEEFFD0000-memory.dmp

Filesize
64KB

Download