32aaffb3abfa622c185dd01ebd7c7e72bed07f9a5f1bdad151ab163a42ab8a80

Analysis

max time kernel
1801s
max time network
1626s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 15:57

Target

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

64KB
MD5

443e59022c8d27f5a10c7323c287d423
SHA1

eabb295c887913fab51447ea92dfff03f809e4ca
SHA256

3558e6fdc0887569b5d5e296225376f74331b286095b230bd3b11479d2b4065f
SHA512

d53a195f983ec7771ec18e9df6f2e839acd3eea1d75237fe62fbc3f8ca71803f1da366fead47cba18be2eaf360438cc18919bb5bd0a2134340a43bb8edfb3c4b
SSDEEP

48:onG+5nrxOrztAOfYYkpWHVXL/UR6ecV3yjtIV8MbI9mQGOr:onZBWHRMNtObII

Score

3^/10

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-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.dylib	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.dylib\ = "dylib_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\dylib_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1120 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1120 AcroRd32.exe
1120 AcroRd32.exe
1120 AcroRd32.exe

pid	process
1120	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 936 wrote to memory of 1712	936	cmd.exe	rundll32.exe
PID 936 wrote to memory of 1712	936	cmd.exe	rundll32.exe
PID 936 wrote to memory of 1712	936	cmd.exe	rundll32.exe
PID 1712 wrote to memory of 1120	1712	rundll32.exe	AcroRd32.exe
PID 1712 wrote to memory of 1120	1712	rundll32.exe	AcroRd32.exe
PID 1712 wrote to memory of 1120	1712	rundll32.exe	AcroRd32.exe
PID 1712 wrote to memory of 1120	1712	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Payload\YouTube.app\Frameworks\YTABGoodies.dylib
1⤵
- Suspicious use of WriteProcessMemory
PID:936
- 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\YTABGoodies.dylib
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1712
- - 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\YTABGoodies.dylib"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1120

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/936-54-0x000007FEFC181000-0x000007FEFC183000-memory.dmp

Filesize
8KB

Download
memory/1120-81-0x0000000000000000-mapping.dmp

Download
memory/1120-82-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download
memory/1712-76-0x0000000000000000-mapping.dmp

Download