4a9d815f284adda187982e2b24da2beaad860739bc4b4cb1cf26408e7c221dd6

Analysis

max time kernel
1800s
max time network
1818s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-04-2024 02:52

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General

Target

lang/pt-BR.json
Size

2KB
MD5

d2c8b30fbd813e99e644df20e1592491
SHA1

abfa50b8840a8672be8cce37966172c4631ba5be
SHA256

8813f8c06dd1b8faabc0b663e15beb2d75af30338e5171c5801a26d1ad8c1053
SHA512

50111ec5cb755635b4db6ad67e0c7bdd578aabaa5e70756a5beb39297b4e6675cc367347dc6d42a3874b4a692207a873c0ce5a8ed80a1390d3894d1b5719893d

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
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\json_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

1528 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

1528 AcroRd32.exe
1528 AcroRd32.exe

pid	process
1528	AcroRd32.exe

pid	process
1528	AcroRd32.exe
1528	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2524 wrote to memory of 2608	2524	cmd.exe	rundll32.exe
PID 2524 wrote to memory of 2608	2524	cmd.exe	rundll32.exe
PID 2524 wrote to memory of 2608	2524	cmd.exe	rundll32.exe
PID 2608 wrote to memory of 1528	2608	rundll32.exe	AcroRd32.exe
PID 2608 wrote to memory of 1528	2608	rundll32.exe	AcroRd32.exe
PID 2608 wrote to memory of 1528	2608	rundll32.exe	AcroRd32.exe
PID 2608 wrote to memory of 1528	2608	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\lang\pt-BR.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2524

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\lang\pt-BR.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2608

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\lang\pt-BR.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
0fb279d11a89c02ea800ffb413126be1

SHA1
4ac0d91f591b3565ee5f1d48b07b4651407aa958

SHA256
81147058441aaed1dfacf61a2aac8e80a2b49896ee02b13c63a39592eb609bb3

SHA512
ae9dbeb652d2e6b25d3cb22831dacb398fcc29c68c8af4e222283bab5db041ea4d95a07efac62b3beb1da27f0b3a3b678169d744b3eb2c18bb1007f5062be5a0

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