1223897eca4325cd7291ec4bd0ff77d8e8e13cd82347a037153b9acc052e1465

Analysis

max time kernel
138s
max time network
137s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
17-08-2022 15:35

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General

Target

Tax Documents.doc
Size

4.9MB
MD5

fea98f3eb09ddfc5686d45c91ed887fd
SHA1

9abf062130a086e1809fdaac26ac33dcd00e7f5e
SHA256

1223897eca4325cd7291ec4bd0ff77d8e8e13cd82347a037153b9acc052e1465
SHA512

3499e81f2cf90f95bc82a8db4b26ecdcb23886c7f579e48eb76618847c28e4e83c23ebc34b4a3671c81519f7f98348e92a1a7880eb0e5e05a4d35842db929cbc

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

java.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	4556	3976	java.exe	WINWORD.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3976 WINWORD.EXE
3976 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE
3976	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 3976 wrote to memory of 4556 3976 WINWORD.EXE java.exe
PID 3976 wrote to memory of 4556 3976 WINWORD.EXE java.exe

description	pid	process	target process
PID 3976 wrote to memory of 4556	3976	WINWORD.EXE	java.exe
PID 3976 wrote to memory of 4556	3976	WINWORD.EXE	java.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\Tax Documents.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3976

C:\ProgramData\Oracle\Java\javapath\java.exe
java
2⤵
- Process spawned unexpected child process
PID:4556

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/3976-119-0x00007FFF0A340000-0x00007FFF0A350000-memory.dmp

Filesize
64KB

Download
memory/3976-120-0x00007FFF0A340000-0x00007FFF0A350000-memory.dmp

Filesize
64KB

Download
memory/3976-121-0x00007FFF0A340000-0x00007FFF0A350000-memory.dmp

Filesize
64KB

Download
memory/3976-122-0x00007FFF0A340000-0x00007FFF0A350000-memory.dmp

Filesize
64KB

Download
memory/3976-125-0x00007FFF06FD0000-0x00007FFF06FE0000-memory.dmp

Filesize
64KB

Download
memory/3976-126-0x00007FFF06FD0000-0x00007FFF06FE0000-memory.dmp

Filesize
64KB

Download
memory/4556-4168-0x0000000000000000-mapping.dmp

Download
memory/4556-4194-0x0000000002660000-0x0000000003660000-memory.dmp

Filesize
16.0MB

Download
memory/4556-4587-0x0000000002660000-0x0000000003660000-memory.dmp

Filesize
16.0MB

Download