249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
103s
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

chrome_100_percent.pak
Size

138KB
MD5

03aaa4f8525ba4b3e30d2a02cb40ab7a
SHA1

dd9ae5f8b56d317c71d0a0a738f5d4a320a02085
SHA256

c3f131faeefab4f506bf61c4b7752a6481f320429731d758ef5413a2f71441f7
SHA512

c89a1b89b669602ba7c8bf2c004755cac7320189603fecb4f4c5cf7a36db72da651c7b613607146f0c6da9eec5df412c7fba75475352192351c02aebdaa7d9a9
SSDEEP

3072:igKzw9bpyZFM5fgm32Z8Gb0+VRLf0ld0GY3cQ3F2DExm/KLQ2I:nKzw9ozA4m3m8Gb0OV8ld0GecQ3mExhk

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
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
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	rundll32.exe
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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
2748 AcroRd32.exe

pid	process
2748	AcroRd32.exe

pid	process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3012 wrote to memory of 2232	3012	cmd.exe	rundll32.exe
PID 3012 wrote to memory of 2232	3012	cmd.exe	rundll32.exe
PID 3012 wrote to memory of 2232	3012	cmd.exe	rundll32.exe
PID 2232 wrote to memory of 2748	2232	rundll32.exe	AcroRd32.exe
PID 2232 wrote to memory of 2748	2232	rundll32.exe	AcroRd32.exe
PID 2232 wrote to memory of 2748	2232	rundll32.exe	AcroRd32.exe
PID 2232 wrote to memory of 2748	2232	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:3012

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2232

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\chrome_100_percent.pak"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2748

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
71a20521c238887bd2fbe3789c86406e

SHA1
2da0179aaa318f304c1c3410574f56b37727527e

SHA256
2bd5078fba42150a469c39d879366e77d1ea50109dae78fd73ddf7737952923f

SHA512
d9609ad0623fa43adfec2bdaca19de1b0436fe92999828f463d396e42f5176ade4f08de6022d3fdbbbc8f80384dea2375457d039f3ae81e6f339c2a567366bbb

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