02cb95700440b100604ece78649b2ef41b2b7ea8ff68afbb02a01148a3f7c106

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

Processes:

WINWORD.EXE

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

Processes:

WINWORD.EXE

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

Processes:

WINWORD.EXE

pid process

4720 WINWORD.EXE
4720 WINWORD.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

WINWORD.EXE

pid process

4720 WINWORD.EXE
4720 WINWORD.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

4720 WINWORD.EXE
4720 WINWORD.EXE
4720 WINWORD.EXE
4720 WINWORD.EXE
4720 WINWORD.EXE
4720 WINWORD.EXE
4720 WINWORD.EXE

pid	process
4720	WINWORD.EXE
4720	WINWORD.EXE

pid	process
4720	WINWORD.EXE
4720	WINWORD.EXE

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

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4720 wrote to memory of 4872	4720	WINWORD.EXE	splwow64.exe
PID 4720 wrote to memory of 4872	4720	WINWORD.EXE	splwow64.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\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

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

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
memory/4872-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads