a60b7a2ef406fd853f59afb392ba91901e059cb256ae7f09de38344c55de4fa0

Analysis

max time kernel
150s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
09-06-2023 23:27

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General

Target

background_2d.frag
Size

1KB
MD5

8eea3e88fd747c334f3f0572b557165a
SHA1

bb48688af7d54be033e0ab141bec20135c131187
SHA256

996bac8b90b0f5aaf911774f834b720f895c5106847648342db2ac83117bb87e
SHA512

1de7d8ff88615986da1522afdc9c6681ae555ca2fc44e0f6f478efdbb4f3cdca5ee515a1790b772ce911f2e05cf1f1d20a10bbad1c9d77a1b4ace9fbd3c5a6a2

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 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.frag	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.frag\ = "frag_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\frag_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2016 AcroRd32.exe
2016 AcroRd32.exe
2016 AcroRd32.exe

pid	process
2016	AcroRd32.exe
2016	AcroRd32.exe
2016	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1744 wrote to memory of 1288	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 1288	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 1288	1744	cmd.exe	rundll32.exe
PID 1288 wrote to memory of 2016	1288	rundll32.exe	AcroRd32.exe
PID 1288 wrote to memory of 2016	1288	rundll32.exe	AcroRd32.exe
PID 1288 wrote to memory of 2016	1288	rundll32.exe	AcroRd32.exe
PID 1288 wrote to memory of 2016	1288	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\background_2d.frag
1⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\background_2d.frag
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1288

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\background_2d.frag"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2016

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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