7aa391fd5872835bc1d3f685a63636069051e45dc215db56aa873606983bb045

Analysis

max time kernel
138s
max time network
133s
platform
windows10_x64
resource
win10v200430
submitted
11-07-2020 07:22

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General

Target

file,07.20.doc
Size

147KB
MD5

2c2b8e0cc062e057eaa471446127dba4
SHA1

5258cd9d3d811f0be112ae125fbf543d80479e07
SHA256

7aa391fd5872835bc1d3f685a63636069051e45dc215db56aa873606983bb045
SHA512

f5405a79e7a11e091970a8563130ee1d7a81fd3016a6541620d620aee1290aa9f6a46f025ffd688327274f674fa2def651d9f404ddd3dfb4d92e369905979e88

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 19 IoCs

Processes:

WINWORD.EXE

pid	process
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE
3656	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3656 WINWORD.EXE
3656 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	1308	3656	regsvr32.exe	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 3656 wrote to memory of 1308	3656	WINWORD.EXE	regsvr32.exe
PID 3656 wrote to memory of 1308	3656	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

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\file,07.20.doc" /o ""
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:3656

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" wG.tmp
2⤵
- Process spawned unexpected child process
PID:1308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1308-1-0x0000000000000000-mapping.dmp

Download
memory/3656-0-0x0000022426702000-0x0000022426708000-memory.dmp

Filesize
24KB

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