249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 18:01

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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

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-1-5-21-3502430532-24693940-2469786940-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\dat_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_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-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\dat_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2832 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2832 AcroRd32.exe
2832 AcroRd32.exe

pid	process
2832	AcroRd32.exe

pid	process
2832	AcroRd32.exe
2832	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3056 wrote to memory of 2280	3056	cmd.exe	rundll32.exe
PID 3056 wrote to memory of 2280	3056	cmd.exe	rundll32.exe
PID 3056 wrote to memory of 2280	3056	cmd.exe	rundll32.exe
PID 2280 wrote to memory of 2832	2280	rundll32.exe	AcroRd32.exe
PID 2280 wrote to memory of 2832	2280	rundll32.exe	AcroRd32.exe
PID 2280 wrote to memory of 2832	2280	rundll32.exe	AcroRd32.exe
PID 2280 wrote to memory of 2832	2280	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:3056

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:2280

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⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2832

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
277b51606340a034633433a4bfd2cd49

SHA1
e521eebca98363ce71fc1bb013ceb84a67051c2f

SHA256
afb09534eac26620d062061ee2e4ed80571e04af3a41ace8f1b4d6fa55dcca69

SHA512
56efb85f52ed28cc6b1b6eea62f3ca4e7318c792365ac3f9c1a94e9947e0682b676cbd01acf5a53b61edc74fdcc7b262c2eb5001960bfbce0bf819185e452bb3

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