6119b7b80971e0152d9064523e594d9b61e3f18703f6aa41d9b21f9cf8837fa8

Analysis

max time kernel
135s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-03-2023 11:24

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General

Target

62.171.178.45_-_Doc1.doc___2b601edc8ae422e3a8d8964c7c9277bf.doc
Size

28KB
MD5

2b601edc8ae422e3a8d8964c7c9277bf
SHA1

529dd89242074c0b1772127aa08df7ba23a37906
SHA256

6119b7b80971e0152d9064523e594d9b61e3f18703f6aa41d9b21f9cf8837fa8
SHA512

f490c0b8ca7184a1ea74a4618d1bd8f80b335682d150c8088218c73aa554267d353a8377e466e465f6e286873084d9c294c02e5c2c2f5383c9fab37e584a4463
SSDEEP

192:wYMRMNslLZEvA+6/6rrILd/Kf3HO8t1ns8R4y0jeDCF3tqtqXa:wj8iSUR/8d1Qy0jeO3tN

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

putty.exe

pid process

952 putty.exe

pid	process
952	putty.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

1688 WINWORD.EXE
1688 WINWORD.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

putty.exe

pid process

952 putty.exe

pid	process
952	putty.exe

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

WINWORD.EXE

pid	process
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 1688 wrote to memory of 952 1688 WINWORD.EXE putty.exe
PID 1688 wrote to memory of 952 1688 WINWORD.EXE putty.exe

description	pid	process	target process
PID 1688 wrote to memory of 952	1688	WINWORD.EXE	putty.exe
PID 1688 wrote to memory of 952	1688	WINWORD.EXE	putty.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\62.171.178.45_-_Doc1.doc___2b601edc8ae422e3a8d8964c7c9277bf.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:1688

C:\Users\Admin\AppData\Local\Temp\putty.exe
C:\Users\Admin\AppData\Local\Temp\putty.exe
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:952

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

C:\Users\Admin\AppData\Local\Temp\putty.exe
Filesize
1.6MB

MD5
f838fdafd0881cf1e6040a07d78e840d

SHA1
2a35456b2f67bd12905378beb6eaf373f6a0d0d1

SHA256
fc6f9dbdf4b9f8dd1f5f3a74cb6e55119d3fe2c9db52436e10ba07842e6c3d7c

SHA512
5c0389eb79e5c2638c0d770cde1a5c56a237aa596503966d4f226a99f94531af501f8bf4efa00722e12998f73271e50d8c187f8e984125affe40b1ab231503b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\putty.exe
Filesize
1.6MB

MD5
f838fdafd0881cf1e6040a07d78e840d

SHA1
2a35456b2f67bd12905378beb6eaf373f6a0d0d1

SHA256
fc6f9dbdf4b9f8dd1f5f3a74cb6e55119d3fe2c9db52436e10ba07842e6c3d7c

SHA512
5c0389eb79e5c2638c0d770cde1a5c56a237aa596503966d4f226a99f94531af501f8bf4efa00722e12998f73271e50d8c187f8e984125affe40b1ab231503b4

Download Submit
memory/1688-139-0x00007FF961DC0000-0x00007FF961DD0000-memory.dmp

Filesize
64KB

Download
memory/1688-136-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-137-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-138-0x00007FF961DC0000-0x00007FF961DD0000-memory.dmp

Filesize
64KB

Download
memory/1688-133-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-135-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-134-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-177-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-178-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-180-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download
memory/1688-179-0x00007FF9644B0000-0x00007FF9644C0000-memory.dmp

Filesize
64KB

Download