0bb9083847724d2a8e487e4eea494ad7362a67acb73ca0c649786c97368ed288

Analysis

max time kernel
150s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03/04/2023, 04:07

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General

Target

Modules/credentials.json
Size

701B
MD5

f9bddb298baa4dfb77c350cbeedd7320
SHA1

bee1870a3350f27afdffa141c606c7037807c094
SHA256

fdffeef363d6d338b67aa1a5c7cb7febeaf91da3805dc76ad71cc20720ce4252
SHA512

1599097bfd6718890a5dcb64e58121733f1148f4af55e5c0fbf06964f590280879cc60d24cd5fa31cc61fa1edc3f71198471f36af38f04fb4053dde43d9702f7

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-1-5-21-3430344531-3702557399-3004411149-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1964	AcroRd32.exe
1964	AcroRd32.exe
1964	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 1348	1148	cmd.exe	29
PID 1148 wrote to memory of 1348	1148	cmd.exe	29
PID 1148 wrote to memory of 1348	1148	cmd.exe	29
PID 1348 wrote to memory of 1964	1348	rundll32.exe	30
PID 1348 wrote to memory of 1964	1348	rundll32.exe	30
PID 1348 wrote to memory of 1964	1348	rundll32.exe	30
PID 1348 wrote to memory of 1964	1348	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Modules\credentials.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Modules\credentials.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1348
- - 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\Modules\credentials.json"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1964

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

Windows 7 deprecation

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