071606576abbd250bb5b241ac6989d65eb87f1b3955ab180dcf8a4ce642af73f

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10-10-2023 15:43

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General

Target

Autoit3.exe.7z
Size

447KB
MD5

e4b31004454be462c97c0bd6ad794061
SHA1

05f316654bc36398d38e0f06ca9eadb22697dfa8
SHA256

071606576abbd250bb5b241ac6989d65eb87f1b3955ab180dcf8a4ce642af73f
SHA512

31f2135caede5322fc7025780a223418c5c51e8d3ca20a45c135b005844697dfb11ba1e09e34d2503045fa827b5dda7b2d16e4120736a93d7af3e47e63f635df
SSDEEP

12288:CSgctnmzRF3enouzjen3FhswCg3M1SWzfgqKD3X9VAGsJouq+L9r:CSg6nmzRF3utynzCZkfqYLAGAjBr

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.7z	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\7z_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2700 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2700 AcroRd32.exe
2700 AcroRd32.exe

pid	process
2700	AcroRd32.exe

pid	process
2700	AcroRd32.exe
2700	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2392 wrote to memory of 1464	2392	cmd.exe	rundll32.exe
PID 2392 wrote to memory of 1464	2392	cmd.exe	rundll32.exe
PID 2392 wrote to memory of 1464	2392	cmd.exe	rundll32.exe
PID 1464 wrote to memory of 2700	1464	rundll32.exe	AcroRd32.exe
PID 1464 wrote to memory of 2700	1464	rundll32.exe	AcroRd32.exe
PID 1464 wrote to memory of 2700	1464	rundll32.exe	AcroRd32.exe
PID 1464 wrote to memory of 2700	1464	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Autoit3.exe.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:2392

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Autoit3.exe.7z
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1464

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\Autoit3.exe.7z"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
21e8222996cede3d87ead9cc4423a5a6

SHA1
30b4c0896fff99b9651b59632211ca8439a0e80c

SHA256
cb81da437059cf23ad96359150f56928cd89c2c204b16071c29e116b7c678f35

SHA512
2885a97a9709296100b753c6206a55105104b3d12eaea48a82d99e67ec89b638599febdfed992432ca2d65c7669fdafb02c03cf597db63dea8389d92f2e7c3b2

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