d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
23-04-2024 14:29

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General

Target

base001.avd
Size

268B
MD5

275c9b3d643f138225d0982245f54f9b
SHA1

a201aa1b25f0236630f190b1f088cad1a7aa2105
SHA256

31b2a7ba93c459ef724e664505240ec8c0dfb495045ca3dda1094ab50f47d2ed
SHA512

9c28ddc3cd080a9ab9a0a0a0bffd38fdea4e76ec2844b909a96db52824714f6b753a4d8fb55d10319cff348b59950812471f77694e90cb234593b5e09b9beba6

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.avd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\avd_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\avd_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.avd\ = "avd_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\avd_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\avd_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\avd_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2968 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2968 AcroRd32.exe
2968 AcroRd32.exe

pid	process
2968	AcroRd32.exe

pid	process
2968	AcroRd32.exe
2968	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2768 wrote to memory of 2548	2768	cmd.exe	rundll32.exe
PID 2768 wrote to memory of 2548	2768	cmd.exe	rundll32.exe
PID 2768 wrote to memory of 2548	2768	cmd.exe	rundll32.exe
PID 2548 wrote to memory of 2968	2548	rundll32.exe	AcroRd32.exe
PID 2548 wrote to memory of 2968	2548	rundll32.exe	AcroRd32.exe
PID 2548 wrote to memory of 2968	2548	rundll32.exe	AcroRd32.exe
PID 2548 wrote to memory of 2968	2548	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\base001.avd
1⤵
- Suspicious use of WriteProcessMemory
PID:2768

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\base001.avd
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2548

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\base001.avd"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2968

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
a39c1b3952b3303ad1786e0bfde44b38

SHA1
091fbf83724ce8f25cce305ff0e27bde3c5eb626

SHA256
293a328ad4869af0e29b2346f38a856635109363cd148d2d58f56b8105fc4814

SHA512
6dcd7ad36f04913d967e14ca29b726acd6fb439b4fc3d8777bc5a36437580e8cbeb207cc8f9bc1123609cd3d9cb77d381f13676c36a99d1f4d2ec827745844ec

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