f71f038f516a58a3217ff0e7850abcab832e1834bcd4329ba14025bf4ab61fda

Resubmissions

20-03-2024 13:08

240320-qdmyjshb67 7

20-03-2024 13:05

240320-qbnr3ahh2y 3

Analysis

max time kernel
361s
max time network
364s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
20-03-2024 13:08

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General

Target

script.au3
Size

469KB
MD5

e1803b01e3f187355dbeb87a0c91b76c
SHA1

b78bc11afacf9cfcaade0e200a344c4602f2053d
SHA256

46c5ed90e3d6b8bc85ae369aa87ba75a12eed6a7cfa8edeb497e5ec7f7c75d9e
SHA512

bfcc8cf7c72bcbf2aa2586a653df00e5c0e7fccb748a5fcdf97ebfaa594fbf81e1c24ce1f5ced039dea76bf251a76ec85db2187614039fa882d702bdc14c6bda
SSDEEP

12288:ZkvyTm8GvC4sSTNJhtXVX9Asbbyhz2mfBLa7EVRcJu4pLrFpUGn6KG5N0iAe+:AsJGvBtTT1OBLZvu6N0a+

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.au3	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.au3\ = "au3_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\au3_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2388 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2388 AcroRd32.exe
2388 AcroRd32.exe

pid	process
2388	AcroRd32.exe

pid	process
2388	AcroRd32.exe
2388	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2884 wrote to memory of 2648	2884	cmd.exe	rundll32.exe
PID 2884 wrote to memory of 2648	2884	cmd.exe	rundll32.exe
PID 2884 wrote to memory of 2648	2884	cmd.exe	rundll32.exe
PID 2648 wrote to memory of 2388	2648	rundll32.exe	AcroRd32.exe
PID 2648 wrote to memory of 2388	2648	rundll32.exe	AcroRd32.exe
PID 2648 wrote to memory of 2388	2648	rundll32.exe	AcroRd32.exe
PID 2648 wrote to memory of 2388	2648	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\script.au3
1⤵
- Suspicious use of WriteProcessMemory
PID:2884

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\script.au3
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2648

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\script.au3"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2388

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
7cf082de2389bc2f163aa56c17d3b876

SHA1
72998db724af6f83a7db83dda132f6172b7fe603

SHA256
465b7be5077d85918bdd0ba7f936cb3ee7e67f81ce83267a2756937bce2ae117

SHA512
07d7f757a483bfb75f97fa120ffff90f8b29e5b894dc0930e4a9c8548e019d58b5ee2d07b7196a20dcb9aa4a8a4a5d8ee7d4bc42d6160e198d7b9e544d94871b

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