31475717735f9aee20def2a4044b42a52cb92e8cf885b92a042099a273688135

Analysis

max time kernel
105s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
05-05-2022 15:37

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General

Target

Challenge_FIles/Employees_Contact_Audit_Oct_2021.docx
Size

12KB
MD5

d5742309ba8146be9eab4396fde77e4e
SHA1

8aaa79ee4a81d02e1023a03aee62a47162a9ff04
SHA256

ed2b9e22aef3e545814519151528b2d11a5e73d1b2119c067e672b653ab6855a
SHA512

37367ea06191c8a949f6c092bc4137736b344cc9892bf8a19e149557919d9276fb1301009a700cede0f2ca05d6827c827992817aee7b8968a5429e433fe0c8ba

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:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\Challenge_FIles\mhtml:http:\175.24.190.249\note.html!x-usc:http:\175.24.190.249\note.html	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2300 WINWORD.EXE
2300 WINWORD.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WINWORD.EXE

description pid process

Token: SeAuditPrivilege 2300 WINWORD.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

2300 WINWORD.EXE
2300 WINWORD.EXE
2300 WINWORD.EXE
2300 WINWORD.EXE
2300 WINWORD.EXE
2300 WINWORD.EXE
2300 WINWORD.EXE

pid	process
2300	WINWORD.EXE
2300	WINWORD.EXE

description	pid	process
Token: SeAuditPrivilege	2300	WINWORD.EXE

pid	process
2300	WINWORD.EXE
2300	WINWORD.EXE
2300	WINWORD.EXE
2300	WINWORD.EXE
2300	WINWORD.EXE
2300	WINWORD.EXE
2300	WINWORD.EXE

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Challenge_FIles\Employees_Contact_Audit_Oct_2021.docx" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2300

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/2300-130-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-131-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-132-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-133-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-134-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-135-0x00007FFAE68C0000-0x00007FFAE68D0000-memory.dmp

Filesize
64KB

Download
memory/2300-136-0x00007FFAE68C0000-0x00007FFAE68D0000-memory.dmp

Filesize
64KB

Download
memory/2300-138-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-139-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-140-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download
memory/2300-141-0x00007FFAE8AD0000-0x00007FFAE8AE0000-memory.dmp

Filesize
64KB

Download