0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11-06-2024 18:31

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General

Target

_locales/hr/messages.json
Size

31KB
MD5

0b7cf7cd0409f227d37da42ed6ae6078
SHA1

605515eedbde4680ca4c596be56be7287474a431
SHA256

7dbd2c5e83976a43d0db7bdab59363f340eca892d894fb1930007c322dab1b3b
SHA512

478026f7b3a333de8c06c48223db7165d4a81e30ab3ced0946721d935e41433f1ae706d66381739ff5373b4896af570d43fc938e4d26fb8a16406fc43bc69b1e
SSDEEP

384:K4SDQ/Uj/gPYa0vLh8oqIgvndd9c4ibbqWDbzZ7RAzVYtwt+jpTQIXAfpFskAz:VX/dYaFx5i9Yd+AFxAz

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2588 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2588 AcroRd32.exe
2588 AcroRd32.exe

pid	process
2588	AcroRd32.exe

pid	process
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 936 wrote to memory of 2592	936	cmd.exe	rundll32.exe
PID 936 wrote to memory of 2592	936	cmd.exe	rundll32.exe
PID 936 wrote to memory of 2592	936	cmd.exe	rundll32.exe
PID 2592 wrote to memory of 2588	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2588	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2588	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2588	2592	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\hr\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\hr\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2592

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\_locales\hr\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2588

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
17ce6640454a5b64d1b553018fd9ebe4

SHA1
d5e9ea89a33a6c8bfcf4365df5e61fefba6be911

SHA256
ada2ea7697e78963c794c455e434fd78a3b9fe2b23e548e6fdfc14810b11f1cd

SHA512
cd12df365437b800a78125e0405028aacedbcb01db717a8cca08f0973e7738fdf0e9ae1283c2e4705711532a2a588e73ff7cfc4c4c679d343fd357ab14a68bcf

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