f71c236c3e632754e7b1d2beec8f6127d7835d54a35638b0e9507137ddd2928c

Analysis

max time kernel
124s
max time network
145s
platform
windows10_x64
resource
win10v20210408
submitted
15-04-2021 19:19

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General

Target

2021BR04IS14.doc
Size

1.4MB
MD5

753885c288a257139fc732fa450b1b7c
SHA1

d8e5d2a366bfe2a5c81a87976ed8c4e3dc2788c5
SHA256

f71c236c3e632754e7b1d2beec8f6127d7835d54a35638b0e9507137ddd2928c
SHA512

9db623c6f57d61fc1da835428702650e916e97cb8121403b22941d009f72b66968558bdf2a2e4c85d1f1d0b0c1b321642d5f803e25565206052713cb54160eb7

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

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3492 WINWORD.EXE
3492 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE
3492 WINWORD.EXE

pid	process
3492	WINWORD.EXE
3492	WINWORD.EXE

pid	process
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	WINWORD.EXE
3492	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\2021BR04IS14.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3492

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

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Downloads

memory/3492-114-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

Filesize
64KB

Download
memory/3492-115-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

Filesize
64KB

Download
memory/3492-116-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

Filesize
64KB

Download
memory/3492-117-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

Filesize
64KB

Download
memory/3492-119-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

Filesize
64KB

Download
memory/3492-118-0x00007FF9F02D0000-0x00007FF9F2DF3000-memory.dmp

Filesize
43.1MB

Download
memory/3492-122-0x00007FF9E9FA0000-0x00007FF9EB08E000-memory.dmp

Filesize
16.9MB

Download
memory/3492-123-0x00007FF9E80A0000-0x00007FF9E9F95000-memory.dmp

Filesize
31.0MB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads