171197fa4de9c7bb2a92c42c7487964199511f0d72f2ce1894cd4c6be6179b41

General

Target

virus yunyun/_vti_cnf/My name is Yuyun.rtf
Size

1KB
MD5

5f973c8004be579518a85dfe2bcd56d7
SHA1

f691293fefabe3ff7f1bdd72230e0791f3777b80
SHA256

f48ed7892dd1743f121840d13ce017aabaea41b121438eca2fbf615352226a0a
SHA512

8c625bbecf326053fea32e895d1e1d8b4da45f0e5e5e2d01fe198ba577644d1d7db27f17423482771f448e4d707004bbfe67bf48ff382e052463037d8a250295

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 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

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
2400	WINWORD.EXE
2400	WINWORD.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	WINWORD.EXE
2400	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\virus yunyun\_vti_cnf\My name is Yuyun.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\TCD757.tmp\gb.xsl

Filesize
262KB

MD5
51d32ee5bc7ab811041f799652d26e04

SHA1
412193006aa3ef19e0a57e16acf86b830993024a

SHA256
6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97

SHA512
5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2400-17-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-538-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-5-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-0-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-12-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-9-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-8-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-7-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-6-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-13-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-15-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-14-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-4-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-2-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-10-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-11-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-18-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-21-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-20-0x00007FF9D76C0000-0x00007FF9D76D0000-memory.dmp

Filesize
64KB

Download
memory/2400-19-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-3-0x00007FFA1988D000-0x00007FFA1988E000-memory.dmp

Filesize
4KB

Download
memory/2400-41-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download
memory/2400-1-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-16-0x00007FF9D76C0000-0x00007FF9D76D0000-memory.dmp

Filesize
64KB

Download
memory/2400-539-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-541-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-540-0x00007FF9D9870000-0x00007FF9D9880000-memory.dmp

Filesize
64KB

Download
memory/2400-542-0x00007FFA197F0000-0x00007FFA199E5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads