249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 19:02

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General

Target

icudtl.dat
Size

9.9MB
MD5

80a7528515595d8b0bf99a477a7eff0d
SHA1

fde9a195fc5a6a23ec82b8594f958cfcf3159437
SHA256

6e0b6b0d9e14c905f2278dbf25b7bb58cc0622b7680e3b6ff617a1d42348736b
SHA512

c8df47a00f7b2472d272a26b3600b7e82be7ca22526d6453901ff06370b3abb66328655868db9d4e0a11dcba02e3788cc4883261fd9a7d3e521577dde1b88459
SSDEEP

196608:+UGwSv9AAQnt6liXUxR0rHa93WhlU6tcCLhl:+oKlQnAliXUxR0rHa93WhlU6t3Ln

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-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\dat_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2876 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2876 AcroRd32.exe
2876 AcroRd32.exe

pid	process
2876	AcroRd32.exe

pid	process
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3040 wrote to memory of 2720	3040	cmd.exe	rundll32.exe
PID 3040 wrote to memory of 2720	3040	cmd.exe	rundll32.exe
PID 3040 wrote to memory of 2720	3040	cmd.exe	rundll32.exe
PID 2720 wrote to memory of 2876	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2876	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2876	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2876	2720	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:3040

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\icudtl.dat
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2720

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\icudtl.dat"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2876

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
169ac809e7aab4affde0e866a16dcccd

SHA1
347f2401dd88a711dbf746270c4d50e12293a0c9

SHA256
968705524af8d71d1485916c6aea0dc960a953f561f9b60ce56d2c5e40df40b3

SHA512
6a2778b0322dcd5b8f27fa8ad3d2a7ebf6a667c16e266e4a0c6b02814e0dde1e1ba9dde7163fdd9ae819a616fd258ed1c14624cc0778905e76ce4717c9d10b4d

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