007e6640a49030d68af8679df6ef5b9ad7bb917396f6a2ab1b5eb72037ebf120

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 08:14

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General

Target

New folder/script.a3x
Size

498KB
MD5

04cdff477585cb0747ecd20052f03c2e
SHA1

8eae88d58b300613fc506b5b7e4cbcb083c5a0a9
SHA256

f3df02bf4d10415bfd8d33e0659c038465616e2190086a77dfbe0c73d229f68c
SHA512

385765cd9fe12e85a906e43063e866ed3d221b65a6ba36ca4d02e9d1ec38094b68ed7830c4e9c5402485180af248a649e223269976e2ab20086d9c340ae5d7b1
SSDEEP

6144:59Tm1YXhgkbIFW2soVLdqOnsNE/0+GQPNQTZAmTtlNcCPEXU9qIFJQgYjOWO21iO:5tm1TenOsEVGyYKCPEXUZFJij2wab0

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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.a3x	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.a3x\ = "a3x_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\a3x_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2416 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2416 AcroRd32.exe
2416 AcroRd32.exe

pid	process
2416	AcroRd32.exe

pid	process
2416	AcroRd32.exe
2416	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2236 wrote to memory of 2516	2236	cmd.exe	rundll32.exe
PID 2236 wrote to memory of 2516	2236	cmd.exe	rundll32.exe
PID 2236 wrote to memory of 2516	2236	cmd.exe	rundll32.exe
PID 2516 wrote to memory of 2416	2516	rundll32.exe	AcroRd32.exe
PID 2516 wrote to memory of 2416	2516	rundll32.exe	AcroRd32.exe
PID 2516 wrote to memory of 2416	2516	rundll32.exe	AcroRd32.exe
PID 2516 wrote to memory of 2416	2516	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\New folder\script.a3x"
1⤵
- Suspicious use of WriteProcessMemory
PID:2236

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\New folder\script.a3x
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2516

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\New folder\script.a3x"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2416

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
fedb9b0ceaaf08577c81109c673894b4

SHA1
2f4abd274f4b268883027fdecd87ea61d6b04a29

SHA256
e38e73f631df6b130e9dda0bfb0d7949d7474d278bbb4ff131306859c1aa5a7e

SHA512
324bdb0f95611e02e5574c0d1297b27227fd9211d20afed721f435ca1b04ffde78cda4d34727eabb5e06de368682f62576ed8b973b2c1314d029bd8cf03c48ae

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