2187745dcc704a8e203aa138a9a6f63f1ffe5ebb08129899cdec638ab48b7e41

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
12-07-2023 06:09

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General

Target

fdd8c54cb9c4249532e2e00910c8ff36.rtf
Size

43KB
MD5

fdd8c54cb9c4249532e2e00910c8ff36
SHA1

a63ab26f4adde349872fd4785449b76d74f8592c
SHA256

2187745dcc704a8e203aa138a9a6f63f1ffe5ebb08129899cdec638ab48b7e41
SHA512

62266f92bd5bb49545b6db4a5e4ae357e564762c89757580b7e0ea9b63bf6800e17df5a2ef503ed11b43ec49feede9ac51def550d141deb3b8467012445152bd
SSDEEP

768:EFx0XaIsnPRIa4fwJMrwEm2eY+UIAntUvQTd9zS4VDPThO0af7oK:Ef0Xvx3EMcEBeynxHzS49PVO0ajoK

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{BE4BF88D-730B-4249-8AA4-EC09AF04475C}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat	svchost.exe

Checks processor information in registry 2 TTPs 6 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
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
3168	WINWORD.EXE
3168	WINWORD.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE
3168	WINWORD.EXE

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

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\fdd8c54cb9c4249532e2e00910c8ff36.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3168

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4004

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

C:\Users\Admin\AppData\Local\Temp\wsuE8AA.tmp

Filesize
14KB

MD5
c01eaa0bdcd7c30a42bbb35a9acbf574

SHA1
0aee3e1b873e41d040f1991819d0027b6cc68f54

SHA256
32297224427103aa1834dba276bf5d49cd5dd6bda0291422e47ad0d0706c6d40

SHA512
d26ff775ad39425933cd3df92209faa53ec5b701e65bfbcccc64ce8dd3e79f619a9bad7cc975a98a95f2006ae89e50551877fc315a3050e48d5ab89e0802e2b7

Download Submit
memory/3168-133-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-134-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-135-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-136-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-137-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-138-0x00007FFBDC0B0000-0x00007FFBDC0C0000-memory.dmp

Filesize
64KB

Download
memory/3168-139-0x00007FFBDC0B0000-0x00007FFBDC0C0000-memory.dmp

Filesize
64KB

Download
memory/3168-201-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-203-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-202-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download
memory/3168-204-0x00007FFBDE850000-0x00007FFBDE860000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads