43fc4d67b0150124d5da346a700b4cfc92a91c141653d9d3cb4beddb91642aca

Resubmissions

27-07-2024 06:21

240727-g4hl3svaqb 4

27-07-2024 05:35

240727-f92rgasfrc 10

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 05:35

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General

Target

Asuna Lite/Asuna.deps.json
Size

1KB
MD5

002373b12dbfd5d6141ab74065e4b8ee
SHA1

c2ed967b0588a30957c5ea891071f45ac4ed3dbc
SHA256

8bea64e412256cffda9ad3d27b5966b1211967dcb722268de1be2b64172c7ae2
SHA512

347c9f957fffa7e77cc934e248f02310fbb5f425c34e19ab6c714f6d0f2fcbbea03e335c3cb4277a9b69ecdcff13eee286ba8b874b0a4b433ca3f8bac3515746

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-1-5-21-3450744190-3404161390-554719085-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2752 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2752 AcroRd32.exe
2752 AcroRd32.exe

pid	process
2752	AcroRd32.exe

pid	process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2812 wrote to memory of 2240	2812	cmd.exe	rundll32.exe
PID 2812 wrote to memory of 2240	2812	cmd.exe	rundll32.exe
PID 2812 wrote to memory of 2240	2812	cmd.exe	rundll32.exe
PID 2240 wrote to memory of 2752	2240	rundll32.exe	AcroRd32.exe
PID 2240 wrote to memory of 2752	2240	rundll32.exe	AcroRd32.exe
PID 2240 wrote to memory of 2752	2240	rundll32.exe	AcroRd32.exe
PID 2240 wrote to memory of 2752	2240	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Asuna Lite\Asuna.deps.json"
1⤵
- Suspicious use of WriteProcessMemory
PID:2812

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Asuna Lite\Asuna.deps.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2240

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\Asuna Lite\Asuna.deps.json"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2752

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
2bef2abc5334218a83deeb5113a049eb

SHA1
ae905cd2bd9ddaa1057cdb91d92817eda8081e0a

SHA256
398f30fd8ba1873d1830261ddbad36981a6a953cfcee2eed4d0eb5d6e452bc44

SHA512
3167de7026405f4294ba82257a3ae850dabfcde85c155aa4d63039c7b72afaf508bd413759ec86dd8cd64fcedf91ab5721e2b06cc2c7123c13add256af9c965f

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