b8f073052b8bf06d12ff4cf8182bf75c91248ef19f906ca6213e8cb4cd46ca00

Analysis

max time kernel
138s
max time network
133s
platform
windows10_x64
resource
win10v200430
submitted
09-07-2020 09:29

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General

Target

documenti_07.20.doc
Size

147KB
MD5

3f4c57007a3d58bb89067c4a0864b2bd
SHA1

0b17e8eb16e77703d19a06cbcf835881de0ae48c
SHA256

b8f073052b8bf06d12ff4cf8182bf75c91248ef19f906ca6213e8cb4cd46ca00
SHA512

4abd436d78fbad2f981f66a475674d671cd59361665c571bf1b6a260658344197d019569bb37b6aabfaadfd42ef3a42ff24e2e8083680e153c78727e2005e90c

Score

10^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 3692 wrote to memory of 2080	3692	WINWORD.EXE	regsvr32.exe
PID 3692 wrote to memory of 2080	3692	WINWORD.EXE	regsvr32.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

Processes:

WINWORD.EXE

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

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 use of SetWindowsHookEx 19 IoCs

Processes:

WINWORD.EXE

pid	process
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE
3692	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3692 WINWORD.EXE
3692 WINWORD.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	2080	3692	regsvr32.exe	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\documenti_07.20.doc" /o ""
1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
PID:3692

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" U.tmp
2⤵
- Process spawned unexpected child process
PID:2080

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/2080-2-0x0000000000000000-mapping.dmp

Download
memory/3692-0-0x000002A677E10000-0x000002A677E43000-memory.dmp

Filesize
204KB

Download
memory/3692-1-0x000002A677E10000-0x000002A677E43000-memory.dmp

Filesize
204KB

Download