06a191350f2df652d86e6f602638635dfdc621b3677419560bcefd980bb288d7

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 20:32

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General

Target

data/flutter_assets/FontManifest.json
Size

208B
MD5

dc3d03800ccca4601324923c0b1d6d57
SHA1

bca264548730f8b1871672891b0ad0c02444bfaf
SHA256

cd7e03645bc44b2dd47b7cb626f51c4ecbf55a197ab77241628b47ac165fbe21
SHA512

eda04affa31ef1d3fe4b081762380a6a5a9364a48e7b6998e870c84495f51a9658724e3f496d90a574f7d5e13740dcf47ccc1c7914b77b6ef0826fe87379cdf8

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.json	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2704 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2704 AcroRd32.exe
2704 AcroRd32.exe

pid	process
2704	AcroRd32.exe

pid	process
2704	AcroRd32.exe
2704	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2348 wrote to memory of 2632	2348	cmd.exe	rundll32.exe
PID 2348 wrote to memory of 2632	2348	cmd.exe	rundll32.exe
PID 2348 wrote to memory of 2632	2348	cmd.exe	rundll32.exe
PID 2632 wrote to memory of 2704	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2704	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2704	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2704	2632	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\flutter_assets\FontManifest.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2348

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data\flutter_assets\FontManifest.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2632

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\data\flutter_assets\FontManifest.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2704

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
d9bcfdba8485ba2b185f881d202afae0

SHA1
ad13c44d18a5d1c8e9a4615f58c54d76a7b66a9b

SHA256
75acde1f6efc17affd9a7f6d0bf3d2c768be2bb3720fb1bb8602efcce7089860

SHA512
8f074f77b5b63e2e89503ff24950760a5a0e059f85fbcb0929031e42fb07b111861b74c19ccd31817a0312617acb4a7c4576bcc93b6fc04082aa73ce38fb3e8e

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