02cb95700440b100604ece78649b2ef41b2b7ea8ff68afbb02a01148a3f7c106

Analysis

max time kernel
180s
max time network
269s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
28-05-2022 02:43

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General

Target

originalfile/PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf
Size

507KB
MD5

42fba80f105aa53dfbf50aeba2d73cae
SHA1

a49b135a66afba5713936d4758ca5d40f19b9e71
SHA256

ac7d02465d0b1992809e16aaae2cd779470a99e0860c4d8a2785d97ce988667b
SHA512

b42b529585da21bae4d36fb1e9b5f2471e77d87505db91f8859068816d355fdd8b4aaaa922512a8a39259b247b9aeaeba92cfb0ab5140122f83dd163b8ed00cf

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4720	WINWORD.EXE
4720	WINWORD.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4720	WINWORD.EXE
4720	WINWORD.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4720	WINWORD.EXE
4720	WINWORD.EXE
4720	WINWORD.EXE
4720	WINWORD.EXE
4720	WINWORD.EXE
4720	WINWORD.EXE
4720	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 4872	4720	WINWORD.EXE	81
PID 4720 wrote to memory of 4872	4720	WINWORD.EXE	81

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\originalfile\PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:4872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4720-130-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-131-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-132-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-133-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-134-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-135-0x00007FFE32930000-0x00007FFE32940000-memory.dmp

Filesize
64KB

Download
memory/4720-136-0x00007FFE32930000-0x00007FFE32940000-memory.dmp

Filesize
64KB

Download
memory/4720-139-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-140-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-141-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download
memory/4720-142-0x00007FFE34990000-0x00007FFE349A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads