11f8bd1484d0adeed4997fc6b593e38f59ee365939924fd0fffc3ee92e0e73da

Analysis

max time kernel
152s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
18/12/2022, 18:06

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General

Target

Fluent-for-Steam-0.4.4.2fix/public/screenshotnotification.res
Size

1KB
MD5

a1ee098b2a2ca0c35f7a571ce3975d82
SHA1

32ad24cf89ac545a6c64e0626c2870a0407f048a
SHA256

9a619fb987efd8dba938e57f119ced2170c9ff3020f07c96ca69dc7ffe521233
SHA512

2435d95b4d4c83f5f1dd0bae20c8aae88507c2529767b9bf038b6369c7b5f8b6e39242d5bfc79b4fdd7db76f8ca53986680eeb09183b5e8a5774e4c52f9ff58f

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.res\ = "res_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.res	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\res_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
520	AcroRd32.exe
520	AcroRd32.exe
520	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1716	1976	cmd.exe	29
PID 1976 wrote to memory of 1716	1976	cmd.exe	29
PID 1976 wrote to memory of 1716	1976	cmd.exe	29
PID 1716 wrote to memory of 520	1716	rundll32.exe	30
PID 1716 wrote to memory of 520	1716	rundll32.exe	30
PID 1716 wrote to memory of 520	1716	rundll32.exe	30
PID 1716 wrote to memory of 520	1716	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Fluent-for-Steam-0.4.4.2fix\public\screenshotnotification.res
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Fluent-for-Steam-0.4.4.2fix\public\screenshotnotification.res
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1716
- - 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\Fluent-for-Steam-0.4.4.2fix\public\screenshotnotification.res"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:520

Network

MITRE ATT&CK Enterprise v6

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

memory/520-82-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

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memory/1976-54-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

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