b159d4e94f3db24a3cc68ef49fa4a6d2fa87fd55ae86e4980749740c9689c8b5

Analysis

max time kernel
129s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2023, 14:31

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General

Target

B159D4E94F3DB24A3CC68EF49FA4A6D2FA87FD55AE86E4980749740C9689C8B5.rtf
Size

36KB
MD5

3386d715eeed326e62df9653371d4313
SHA1

41c0882c487a2fcf4b689ef25853a1ce15cfffa5
SHA256

b159d4e94f3db24a3cc68ef49fa4a6d2fa87fd55ae86e4980749740c9689c8b5
SHA512

47afdb85144a43ca76ddfaa590611c054e75fd6d39b828f2eb608cf52c1bd8d7d70faed2619770dfe1174283ad53ec09a359bba4b93ac0fb8fee0ebda016d809
SSDEEP

768:5Fx0XaIsnPRIa4fwJMicCKUBAeQmy9xEgwD:5f0Xvx3EM4KC7Vy9CZD

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{3A8164E9-F931-41FD-AC93-9E0CA1603E67}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{F73936B9-E771-4997-BB98-11ABC73CDBEC}.catalogItem	svchost.exe

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
860	WINWORD.EXE
860	WINWORD.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE
860	WINWORD.EXE

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:3056

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\B159D4E94F3DB24A3CC68EF49FA4A6D2FA87FD55AE86E4980749740C9689C8B5.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:860

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

Replay Monitor

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Downloads

memory/860-133-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-134-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-135-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-136-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-137-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-138-0x00007FFAE4720000-0x00007FFAE4730000-memory.dmp

Filesize
64KB

Download
memory/860-140-0x00007FFAE4720000-0x00007FFAE4730000-memory.dmp

Filesize
64KB

Download
memory/860-170-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-172-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-171-0x00007FFAE6A50000-0x00007FFAE6A60000-memory.dmp

Filesize
64KB

Download
memory/860-173-0x00007FFAE6A50000-0x00007FFAE6A60000-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