32aaffb3abfa622c185dd01ebd7c7e72bed07f9a5f1bdad151ab163a42ab8a80

Analysis

max time kernel
1801s
max time network
1846s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 15:57

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General

Target

Payload/YouTube.app/Frameworks/YouTubeDislikesReturn.dylib
Size

99KB
MD5

9de9ac2c1c65dffde8a80b85f3810223
SHA1

ae47bd6df241135896cb6fa106e87108f7c1c646
SHA256

d9504e35684bc77d33501f330a22f693097dd334d0c1c73f805f4c350beaab0f
SHA512

7a0fd4493b2e964a3953e6e1765d1c25dfd11b2c170f63719a1f6adfd49fc1ff8e3f2ff7048347dc48dd71459b087b8c7b002f676e6506019bc74be2c6c6da2d
SSDEEP

768:YJcPA+RvqPLFgL1nZ8fvce3OXr4AHBvfW25jnYZi:5A+g2RZMce+RX7jn9

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.dylib	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.dylib\ = "dylib_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dylib_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

468 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

468 AcroRd32.exe
468 AcroRd32.exe
468 AcroRd32.exe

pid	process
468	AcroRd32.exe

pid	process
468	AcroRd32.exe
468	AcroRd32.exe
468	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1996 wrote to memory of 820	1996	cmd.exe	rundll32.exe
PID 1996 wrote to memory of 820	1996	cmd.exe	rundll32.exe
PID 1996 wrote to memory of 820	1996	cmd.exe	rundll32.exe
PID 820 wrote to memory of 468	820	rundll32.exe	AcroRd32.exe
PID 820 wrote to memory of 468	820	rundll32.exe	AcroRd32.exe
PID 820 wrote to memory of 468	820	rundll32.exe	AcroRd32.exe
PID 820 wrote to memory of 468	820	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Payload\YouTube.app\Frameworks\YouTubeDislikesReturn.dylib
1⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Payload\YouTube.app\Frameworks\YouTubeDislikesReturn.dylib
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:820

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\Payload\YouTube.app\Frameworks\YouTubeDislikesReturn.dylib"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:468

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

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Downloads

memory/468-81-0x0000000000000000-mapping.dmp

Download
memory/468-82-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/820-76-0x0000000000000000-mapping.dmp

Download
memory/1996-54-0x000007FEFBB21000-0x000007FEFBB23000-memory.dmp

Filesize
8KB

Download