Overview

overview

10

Static

static

1

HJN0FI75O6FQ.js

windows10-2004-x64

10

HJN0FI75O6FQ.js

windows11-21h2-x64

10

Sharing

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General

  • Target

    HJN0FI75O6FQ.js

  • Size

    1KB

  • Sample

    240708-da7gkayfnk

  • MD5

    9e620d8152d31eaf4d6bebf8988966e2

  • SHA1

    bd12978de9ee93deb533aba5fd73cb200834cda1

  • SHA256

    a849120692103626a0e93b97e44f50f87d9388fe7b6ef921b4aad64d9f8cc77a

  • SHA512

    6c61e84987403e16eca2b8a29516b02a2fade84ef22f382681489363f7b5f4b801b24495b19e53b675a2aa28a982bfc4bc0c32acfe12aa6e3b1ecf55d01762d2

Score
10/10
koiloaderexecutionloaderspywarestealer

Malware Config

Extracted

Family

koiloader

C2

http://135.125.242.196/guana.php

Attributes
  • payload_url

    https://krishnafoils.co.in/wp-content/uploads/2015/05

Targets

    • Target

      HJN0FI75O6FQ.js

    • Size

      1KB

    • MD5

      9e620d8152d31eaf4d6bebf8988966e2

    • SHA1

      bd12978de9ee93deb533aba5fd73cb200834cda1

    • SHA256

      a849120692103626a0e93b97e44f50f87d9388fe7b6ef921b4aad64d9f8cc77a

    • SHA512

      6c61e84987403e16eca2b8a29516b02a2fade84ef22f382681489363f7b5f4b801b24495b19e53b675a2aa28a982bfc4bc0c32acfe12aa6e3b1ecf55d01762d2

    Score
    10/10
    koiloaderexecutionloaderspywarestealer

    • KoiLoader

      KoiLoader is a malware loader written in C++.

      loaderkoiloader

    • Detects KoiLoader payload

      loader

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

3
T1059

PowerShell

2
T1059.001

JavaScript

1
T1059.007

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks