General

  • Target

    Request for PO_2023.js

  • Size

    1MB

  • Sample

    230202-nlldksfh82

  • MD5

    70653ab99274c82b0a279a3385f62d04

  • SHA1

    fc35767cfddafe185ec263c1eaf2d5acc65714a8

  • SHA256

    85e2252b565492389e6dc161551a3c82b9fcc6b3873ca2f7f4a2e99d87ca6c9f

  • SHA512

    5686564725d64a1883e62d50399d8b650e3deb45e7b569b0def53573bc9dd21c2fc276c1e5422c4b26ba66b0cdccb032ebe770b6f974bea45679ea4adc88042b

  • SSDEEP

    24576:ju9bPTr3v4HG3dvjcYxRVBw+H8AirMFTYs0RU:iFTrw4LcfpMCRK

Malware Config

Targets

    • Target

      Request for PO_2023.js

    • Size

      1MB

    • MD5

      70653ab99274c82b0a279a3385f62d04

    • SHA1

      fc35767cfddafe185ec263c1eaf2d5acc65714a8

    • SHA256

      85e2252b565492389e6dc161551a3c82b9fcc6b3873ca2f7f4a2e99d87ca6c9f

    • SHA512

      5686564725d64a1883e62d50399d8b650e3deb45e7b569b0def53573bc9dd21c2fc276c1e5422c4b26ba66b0cdccb032ebe770b6f974bea45679ea4adc88042b

    • SSDEEP

      24576:ju9bPTr3v4HG3dvjcYxRVBw+H8AirMFTYs0RU:iFTrw4LcfpMCRK

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks