395b6bf1b3a8155aaaca12672272c976a29854d12bdeac948e8d6d0059e81cd2

Analysis

max time kernel
135s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
13/04/2023, 20:35

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General

Target

Herramienta_de_Seguridad_SII.jse.js
Size

117KB
MD5

7fe97d4e29e17f39e343a9ef5fde03ca
SHA1

505f56074185eb1073277fdcaf8344345198a1e6
SHA256

395b6bf1b3a8155aaaca12672272c976a29854d12bdeac948e8d6d0059e81cd2
SHA512

03f4b7b681ea029cf3b0ae62dd187635fdf1bd1a104a3b82999fb777fd5523d7daeeaa9a87c3589bebe50c9980fe4d36440157aa411870d52574ced40b36825d
SSDEEP

3072:zVnHL7UGW38ZPcmN2qCJPUbxfwWOfDiROmFcS3xKOyDA1UOdClVTFpwfMwNTjc1s:xnr7UGo8ZUmN2qauxfwWOfDiROmFcShf

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	996	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	wscript.exe

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

System Information Discovery
T1082

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1836	powershell.exe
1836	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 1836	996	wscript.exe	84
PID 996 wrote to memory of 1836	996	wscript.exe	84

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Herramienta_de_Seguridad_SII.jse.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -c <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>404 Not Found</title> </head><body> <h1>Not Found</h1> <p>The requested URL was not found on this server.</p> </body></html>
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zmggz1qp.r3w.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1836-138-0x000002AA3AAE0000-0x000002AA3AAF0000-memory.dmp

Filesize
64KB

Download
memory/1836-144-0x000002AA3AAE0000-0x000002AA3AAF0000-memory.dmp

Filesize
64KB

Download
memory/1836-140-0x000002AA3AA40000-0x000002AA3AA62000-memory.dmp

Filesize
136KB

Download