0432dca5d3f8623103c1e112f052a4ed7990d550b029c445858ffc94a9abe65b

Resubmissions

15/04/2024, 17:37

240415-v66nksed8w 7

15/04/2024, 17:34

240415-v5ll1sed3z 7

15/04/2024, 17:30

240415-v3fmzsca66 3

15/04/2024, 17:27

240415-v1vdcseb8w 7

Analysis

max time kernel
27s
max time network
19s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 17:37

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Report Analysis Logs

General

Target

WindowsPowerShell/v1.0/Modules/VpnClient/PS_VpnServerAddress_v1.0.cdxml
Size

1KB
MD5

f45547e60663d7b4bc02a4182fda841d
SHA1

a0a2bbdcd7f33e988115c588bd77fa80c3de7456
SHA256

71813b448a93a70d846dee293ebee26d0f3d75d2601c96e8a25a954857045622
SHA512

c78478485365d87e89f523615fbcbdcb3882e1795ad07cdbaa4e6730c3f0f02201bbe956e4686d060922bfea7793fa1599963ab447a329ca17dc4a8062610a69

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.cdxml	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.cdxml\ = "cdxml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\cdxml_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2620	AcroRd32.exe
2620	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2552	3000	cmd.exe	29
PID 3000 wrote to memory of 2552	3000	cmd.exe	29
PID 3000 wrote to memory of 2552	3000	cmd.exe	29
PID 2552 wrote to memory of 2620	2552	rundll32.exe	30
PID 2552 wrote to memory of 2620	2552	rundll32.exe	30
PID 2552 wrote to memory of 2620	2552	rundll32.exe	30
PID 2552 wrote to memory of 2620	2552	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnServerAddress_v1.0.cdxml
1⤵
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnServerAddress_v1.0.cdxml
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2552
- - 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\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnServerAddress_v1.0.cdxml"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2620

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
f1e0b20930d626b55d95bccb4d31e5a0

SHA1
5886ba20bb745781816f4563f547643245dfe531

SHA256
1f615dc33d7076325372adac48b9d18ea0bafbc34385b35d854a2a47497f46c3

SHA512
e4c50d1d101411dc458ce2a3032ad72a6fe8f16ccb2b83942a6f815d9fc8ef2e57e93e5bf20bca54ac10f6d676247b18277f558a7a1da93d667b539df4caa975

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