32aaffb3abfa622c185dd01ebd7c7e72bed07f9a5f1bdad151ab163a42ab8a80

Analysis

max time kernel
1801s
max time network
1612s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 15:57

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General

Target

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

24.2MB
MD5

74a4d63d3ea52c7aee2ea12b18a0693d
SHA1

56bca173c3b4d4f069af062e683f6de6dacaaf45
SHA256

0f158f15ef0184a3a54cc75266ac6bf95796dcc0bf80119acdaa261f1b69a787
SHA512

7f5e3b7518e067ab4881d46c3ac028d015a75d1fdf3a7b01ca20042889802524878aa76cc20948ffbd038958d4b23e98c81f50d8bdb2c794000886ccc9643aa1
SSDEEP

393216:yuGh+7GGGcv61Sj3S2tzN3yP/dMxKNjL3GT0pFiSbM1dcUwG:yuGhLcv61M3btx3yqxKLxb4dl

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
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.dylib\ = "dylib_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\dylib_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\dylib_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_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-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\dylib_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.dylib	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\dylib_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\dylib_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

584 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

584 AcroRd32.exe
584 AcroRd32.exe
584 AcroRd32.exe

pid	process
584	AcroRd32.exe

pid	process
584	AcroRd32.exe
584	AcroRd32.exe
584	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2032 wrote to memory of 768	2032	cmd.exe	rundll32.exe
PID 2032 wrote to memory of 768	2032	cmd.exe	rundll32.exe
PID 2032 wrote to memory of 768	2032	cmd.exe	rundll32.exe
PID 768 wrote to memory of 584	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 584	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 584	768	rundll32.exe	AcroRd32.exe
PID 768 wrote to memory of 584	768	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Payload\YouTube.app\Frameworks\YouTubeReborn.dylib
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

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\YouTubeReborn.dylib
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:768

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\YouTubeReborn.dylib"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:584

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

Replay Monitor

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Downloads

memory/584-81-0x0000000000000000-mapping.dmp

Download
memory/584-82-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/768-76-0x0000000000000000-mapping.dmp

Download
memory/2032-54-0x000007FEFB631000-0x000007FEFB633000-memory.dmp

Filesize
8KB

Download