32aaffb3abfa622c185dd01ebd7c7e72bed07f9a5f1bdad151ab163a42ab8a80

Analysis

max time kernel
1801s
max time network
1620s
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/fixYouTubeLogin.dylib
Size

65KB
MD5

d34efad14aacde6cbf60406593fff23a
SHA1

bfbeca69f54e3766fd5b2f51851943cf0b3b0bbf
SHA256

5a517df32fae2de20b460cc635d9af207079ad527d6e66d660205bddb1dad767
SHA512

7c6742b2bbdf39e631533caae9757753537ed81c15372f85e94b7620f9afd743f851e052784375116aee9511e295fb9b2a6d70d72e66b375aa2edd0aa859e68e
SSDEEP

96:GSdpiYnAUYuh9MDlHJg36VGF7fbhyzg0:u8h9MBHJO

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-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.dylib	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.dylib\ = "dylib_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dylib_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1004 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

1004 AcroRd32.exe
1004 AcroRd32.exe

pid	process
1004	AcroRd32.exe

pid	process
1004	AcroRd32.exe
1004	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 908 wrote to memory of 2028	908	cmd.exe	rundll32.exe
PID 908 wrote to memory of 2028	908	cmd.exe	rundll32.exe
PID 908 wrote to memory of 2028	908	cmd.exe	rundll32.exe
PID 2028 wrote to memory of 1004	2028	rundll32.exe	AcroRd32.exe
PID 2028 wrote to memory of 1004	2028	rundll32.exe	AcroRd32.exe
PID 2028 wrote to memory of 1004	2028	rundll32.exe	AcroRd32.exe
PID 2028 wrote to memory of 1004	2028	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Payload\YouTube.app\Frameworks\fixYouTubeLogin.dylib
1⤵
- Suspicious use of WriteProcessMemory
PID:908

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\fixYouTubeLogin.dylib
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2028

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\fixYouTubeLogin.dylib"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1004

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/908-54-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

Filesize
8KB

Download
memory/1004-81-0x0000000000000000-mapping.dmp

Download
memory/1004-82-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/2028-76-0x0000000000000000-mapping.dmp

Download