d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 20:20

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General

Target

base002.avd
Size

15KB
MD5

0c81faaf2e8a8668734e159e31367059
SHA1

7a8f9f679c25de849b7185de7e5302bdeedea55b
SHA256

5d68981bf1c14119b05b57a59ec918566c71e11da24a5b425e1d00a0324e9f95
SHA512

e59c03c4f70e3dbf0a043a1f9cac8f680738fd4b68527bf2be3070ed95429b460608f47c4261ab9672d9f0ee94edc42bae921370f3427a4e4870ac938b705e86
SSDEEP

384:2GroxvfRKLZy6XxbV1pj071IzRqMx14pPtbeQVRNWONm+R:xGvp8xbvpASqE1eRM70

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.avd\ = "avd_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.avd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\avd_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2752 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2752 AcroRd32.exe
2752 AcroRd32.exe

pid	process
2752	AcroRd32.exe

pid	process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1284 wrote to memory of 2684	1284	cmd.exe	rundll32.exe
PID 1284 wrote to memory of 2684	1284	cmd.exe	rundll32.exe
PID 1284 wrote to memory of 2684	1284	cmd.exe	rundll32.exe
PID 2684 wrote to memory of 2752	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2752	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2752	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2752	2684	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\base002.avd
1⤵
- Suspicious use of WriteProcessMemory
PID:1284

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\base002.avd
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2684

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\base002.avd"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2752

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
1ea3c4a4636e56f86a950ff80ad6ee70

SHA1
51649991817e7e089f12805a361442180a625350

SHA256
ae16d51129df39ca7931cc11edea7be7ec575093170a47b9cc39f01fb80b3635

SHA512
1c5371a29aeb17babb24207a50c3f09675c03be89054a84c9bcfeb227f77d42ba79354303224f4a5aa81172be47d1969040916ad1d076daf0abce883ef28298b

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