249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
151s
max time network
24s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 18:01

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General

Target

resources.pak
Size

4.9MB
MD5

91f8a4b158df6967163ccbbe765e095a
SHA1

95db67f0a2352fd898f4a4cfdfc860f6a9c58c87
SHA256

a30b8269e588c6cc2cea5fd4685da3012fd10451edb59a283005116f8e033182
SHA512

6450d75d53f24d11e1c1e7e3cacfc57ee9dd09c00ca0dc2ff30f580b59a6b17e7ad7d96682195bd7d806b49068653538c77ca4200491560cecff128a0b012d92
SSDEEP

98304:L300L4ikWDclBYMiqOs7y33cJIVh1uiUdrwrAUFJ7rK5zkIFvd4XTI:z0Q4ivKYMDJOh8iqkrAUXrK5D

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-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2768 AcroRd32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

2768 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2768 AcroRd32.exe
2768 AcroRd32.exe
2768 AcroRd32.exe

pid	process
2768	AcroRd32.exe

pid	process
2768	AcroRd32.exe

pid	process
2768	AcroRd32.exe
2768	AcroRd32.exe
2768	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2532 wrote to memory of 2400	2532	cmd.exe	rundll32.exe
PID 2532 wrote to memory of 2400	2532	cmd.exe	rundll32.exe
PID 2532 wrote to memory of 2400	2532	cmd.exe	rundll32.exe
PID 2400 wrote to memory of 2768	2400	rundll32.exe	AcroRd32.exe
PID 2400 wrote to memory of 2768	2400	rundll32.exe	AcroRd32.exe
PID 2400 wrote to memory of 2768	2400	rundll32.exe	AcroRd32.exe
PID 2400 wrote to memory of 2768	2400	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2532

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources.pak
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2400

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\resources.pak"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2768

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
b6ad267c0d6f2bc0b1a4d6e8ab729c80

SHA1
d8890e8758de135ba567ed919db95043c4dbb696

SHA256
a0059980f2e6bfd39d3190cc6acf409fcd954c4136ad93c216d8f28f6ef7e48c

SHA512
ab614a504689b789b4039ab443e1d51615d32f16be01ea192b4d1106cb3cfc268e16080418b7fb32718a4fd2aaa8e4ce96952105002e270a6e0bf7ab1d35ec79

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