6287c1d00f8e1777bd47c273c7dea2438321a5147aa0b9d722a8671718701cc0

Analysis

max time kernel
120s
max time network
139s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-08-2024 22:24

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General

Target

IDA/til/xnu_4903_x86.til
Size

1.1MB
MD5

4232e00d580a370a6a4ba7f42ae8573c
SHA1

cb822354411f33ea8fc8e51b4277ea1373b8afcb
SHA256

6893daa6fe3506d04fd318b1b643270678f8b445233733275d606d8028eb92d5
SHA512

e601f766a129d7d6588d2b9d77ee00c2e1a860c815664c6ab10dffbdb60a89d70aeb528f60b362705776e2535d11be4f26b4427dd48ba5e24ce5bf27e38a5a40
SSDEEP

24576:2a9ybWRp3XwPoqxIMrBSFkrDQg2MrmryVaru6k04YjCc6:ngbWfXSoypNv24WyVmxjCc6

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

AcroRd32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.til	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.til\ = "til_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\til_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2552 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2552 AcroRd32.exe
2552 AcroRd32.exe

pid	process
2552	AcroRd32.exe

pid	process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2672 wrote to memory of 2740	2672	cmd.exe	rundll32.exe
PID 2672 wrote to memory of 2740	2672	cmd.exe	rundll32.exe
PID 2672 wrote to memory of 2740	2672	cmd.exe	rundll32.exe
PID 2740 wrote to memory of 2552	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2552	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2552	2740	rundll32.exe	AcroRd32.exe
PID 2740 wrote to memory of 2552	2740	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\IDA\til\xnu_4903_x86.til
1⤵
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\IDA\til\xnu_4903_x86.til
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2740
- - 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\IDA\til\xnu_4903_x86.til"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
d20a4fd4e92cc6e94884456fe8c0241e

SHA1
a5fdb79812b6ad853c63a132faeb0ac59e9e2a05

SHA256
a3e4609b6278e18a30baa285347bd8ee6db63968bf38f9d5e4457576f359b618

SHA512
2618113b77202d5ca92524a544810e3709f2271161035706071107087f44709c6b3b9c3e5e66cbdcb7e9d47345b7bb5e080ee832f2617e5358839daecb677272

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