Overview

overview

10

Static

static

1

Chasebank_...eb.lnk

windows10-2004-x64

10

Sharing

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General

  • Target

    Chasebank_statement_feb.lnk

  • Size

    3KB

  • Sample

    240510-xstszace8v

  • MD5

    7c362c0f48b3ccfd8e6b19c8c0027b5f

  • SHA1

    05c23b1099393f18084ba766f79f7a04e92143af

  • SHA256

    164434e81da57b4e1f82572eb06c93ecb1ec9efd427892a4425e31ab37a8cbc3

  • SHA512

    7a5bc5ec05bff3121358a75030bfa9dd213d8145d51529f090d634fac1fbbf60e7384712e7aac4be68e85dcef5b6f13bcf2268d87fc9e57a9e687b7e5fb11c09

Score
10/10
koiloaderexecutionloader

Malware Config

Extracted

Family

koiloader

C2

http://45.129.199.204/config.php

Attributes
  • payload_url

    https://www.fuchs.com.sd/media/media/js

Targets

    • Target

      Chasebank_statement_feb.lnk

    • Size

      3KB

    • MD5

      7c362c0f48b3ccfd8e6b19c8c0027b5f

    • SHA1

      05c23b1099393f18084ba766f79f7a04e92143af

    • SHA256

      164434e81da57b4e1f82572eb06c93ecb1ec9efd427892a4425e31ab37a8cbc3

    • SHA512

      7a5bc5ec05bff3121358a75030bfa9dd213d8145d51529f090d634fac1fbbf60e7384712e7aac4be68e85dcef5b6f13bcf2268d87fc9e57a9e687b7e5fb11c09

    Score
    10/10
    koiloaderexecutionloader

    • KoiLoader

      KoiLoader is a malware loader written in C++.

      loaderkoiloader

    • Detects KoiLoader payload

      loader

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

JavaScript

1
T1059.007

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks