836a2e783094f585d7edc7261b44ca7ad68b30f375b2f14618e05929141c2c8b

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
17/08/2023, 21:15

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General

Target

SEGUNDA NOTIFICACION.7z
Size

1KB
MD5

2b82e8d1310540fd750bd2d56e93ee4e
SHA1

4124e696d506749d2a217ab5236a93051ab68e6b
SHA256

836a2e783094f585d7edc7261b44ca7ad68b30f375b2f14618e05929141c2c8b
SHA512

10e51ea6566e3f91dfef2691593c82d9cb454c32131f9faf098ec73f455745bd6590b60884f54ddacce6475b973c46b0c270a2b937089d550137fa00dccbfb3f

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-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.7z	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2244	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2244	AcroRd32.exe
2244	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2880	1908	cmd.exe	29
PID 1908 wrote to memory of 2880	1908	cmd.exe	29
PID 1908 wrote to memory of 2880	1908	cmd.exe	29
PID 2880 wrote to memory of 2244	2880	rundll32.exe	30
PID 2880 wrote to memory of 2244	2880	rundll32.exe	30
PID 2880 wrote to memory of 2244	2880	rundll32.exe	30
PID 2880 wrote to memory of 2244	2880	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\SEGUNDA NOTIFICACION.7z"
1⤵
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SEGUNDA NOTIFICACION.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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\SEGUNDA NOTIFICACION.7z"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2244

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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