a943f6bfcea59de3df3c5cfe269479cb8a9a9678720be9f54c05a52c755ced3c

Analysis

max time kernel
128s
max time network
147s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
21-03-2023 23:37

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General

Target

a943f6bfcea59de3df3c5cfe269479cb8a9a9678720be9f54c05a52c755ced3c.doc
Size

280KB
MD5

1ed78c12c4ff7dd9b7107b2b5ec0ddb3
SHA1

56282ca3aa2300155a7ef2d125e6df963e9d0354
SHA256

a943f6bfcea59de3df3c5cfe269479cb8a9a9678720be9f54c05a52c755ced3c
SHA512

c8a3cf440d30e21756c5da7581af3c70b2ed1219126db817750c1a0e558894eb6869a8adedbd49f2587fbd6f6a998a75334a1c325eaa76d434711c48c6e24d21
SSDEEP

3072:DRtgb85gk/qpAn0wIQFAN5iRZVGgge3WzN09JYUCJVE4gz7+W9iJF:tNgkHn905e6JkJYUCJV2+iW

Score

1^/10

Malware Config

Signatures

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

Script User-Agent 10 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	14	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	22	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4480 WINWORD.EXE
4480 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE
4480 WINWORD.EXE

pid	process
4480	WINWORD.EXE
4480	WINWORD.EXE

pid	process
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	WINWORD.EXE
4480	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\a943f6bfcea59de3df3c5cfe269479cb8a9a9678720be9f54c05a52c755ced3c.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4480

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/4480-116-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-117-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-118-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-119-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-122-0x00007FF96CCA0000-0x00007FF96CCB0000-memory.dmp

Filesize
64KB

Download
memory/4480-123-0x00007FF96CCA0000-0x00007FF96CCB0000-memory.dmp

Filesize
64KB

Download
memory/4480-386-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-388-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-387-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download
memory/4480-389-0x00007FF970260000-0x00007FF970270000-memory.dmp

Filesize
64KB

Download