30091faafd62ea7ba9868db2ee575dab98fd126a78d39590f57ea7b38b20d966

Resubmissions

21-09-2024 02:25

240921-cwhvna1bmc 10

20-09-2024 21:59

240920-1wjzqa1amp 10

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 21:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

chrome_100_percent.pak
Size

150KB
MD5

b1bccf31fa5710207026d373edd96161
SHA1

ae7bb0c083aea838df1d78d61b54fb76c9a1182e
SHA256

49aff5690cb9b0f54f831351aa0f64416ba180a0c4891a859fa7294e81e9c8e3
SHA512

134a13ad86f8bd20a1d2350236269fd39c306389a600556a82025d5e0d5adaab0709d59e9b7ee96e8e2d25b6df49fefea27cdccefe5fba9687abf92a9a941d91
SSDEEP

3072:AzwJCGIekwENgMBsFAXg6VKdL2o418Gb0+VRLf0ld0GY3cQ3ERVm2I:Azw1IekmMBdQXK18Gb0OV8ld0GecQ3Ey

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-1-5-21-312935884-697965778-3955649944-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2828 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2828 AcroRd32.exe
2828 AcroRd32.exe

pid	process
2828	AcroRd32.exe

pid	process
2828	AcroRd32.exe
2828	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 632 wrote to memory of 2872	632	cmd.exe	rundll32.exe
PID 632 wrote to memory of 2872	632	cmd.exe	rundll32.exe
PID 632 wrote to memory of 2872	632	cmd.exe	rundll32.exe
PID 2872 wrote to memory of 2828	2872	rundll32.exe	AcroRd32.exe
PID 2872 wrote to memory of 2828	2872	rundll32.exe	AcroRd32.exe
PID 2872 wrote to memory of 2828	2872	rundll32.exe	AcroRd32.exe
PID 2872 wrote to memory of 2828	2872	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:632
- 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:2872
- - 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:2828

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
131638805ad74f700d275792e8ef86b2

SHA1
c226dd4ad9c09eb4f99586d87d6fab5d1f0b0e39

SHA256
6cea41c5c3e427572c7c871636f95a5932fd98753827473d602bce5c9a65a04b

SHA512
9ba1addeb93b447144e8db7edea1397dba8ee76dbcd019584e1749ba77a317036dafcec757f4b527376120d62c09d4cf7b22ea62328265726d62c7dd0b40fff9

Download Submit