923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1

Analysis

max time kernel
188s
max time network
87s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
24/11/2022, 10:35

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General

Target

923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1.vhd
Size

13.0MB
MD5

08c14dd68da6800a6e630b0e6bee8f6f
SHA1

0ee8989e63070dc4bd54bc09189477234344fc8a
SHA256

923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1
SHA512

c2199feeb4e72524e030c36f051d1dcc13b90a278d722d35979c5c98fffee19a4de1d804de4fbe42476faa62b8b7818f0843eaa79415cef7c2805d4706672837
SSDEEP

49152:Hb//8/N+FV3giuequoTWmyjegvtYSN2NYwsmeMcx:bWN29gDeqzHCtYS

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-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.vhd	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.vhd\ = "vhd_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\vhd_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1544	AcroRd32.exe
1544	AcroRd32.exe
1544	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 460 wrote to memory of 688	460	cmd.exe	29
PID 460 wrote to memory of 688	460	cmd.exe	29
PID 460 wrote to memory of 688	460	cmd.exe	29
PID 688 wrote to memory of 1544	688	rundll32.exe	30
PID 688 wrote to memory of 1544	688	rundll32.exe	30
PID 688 wrote to memory of 1544	688	rundll32.exe	30
PID 688 wrote to memory of 1544	688	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1.vhd
1⤵
- Suspicious use of WriteProcessMemory
PID:460
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1.vhd
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:688
- - 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\923f0f8a50fd980789625fa96abff0707a233e75ef83c31b863781d216d743a1.vhd"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1544

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

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Downloads

memory/460-54-0x000007FEFC471000-0x000007FEFC473000-memory.dmp

Filesize
8KB

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memory/1544-82-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

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