Malicious PDF — malware analysis report

Static analysis result for SHA-256 18612c00dd2dd1be…

MALICIOUS

PDF

44.2 KB Created: 2021-05-11 04:49:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f02e512101aa6153640fbe885db534a5 SHA-1: 668455bb136a40210ccf5946752db3149e3c3a72 SHA-256: 18612c00dd2dd1be3065d1cc541de9ccc617b6d5392b78503219ba470df5f59c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces this assessment. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/how-do-you-get-free-food-on-coin-master-game-hack PDF link annotation
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/robux-money_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/www-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/game-hunters-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00005117.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5117 24640 bytes
SHA-256: 38f4c45905959f9d2439229d4f67d13b227c142b9a8742ba38b493f2dc25cb02
font_01_sfnt_off000089e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E5 18516 bytes
SHA-256: 557830b2ad610ffe463328ddee8e306bc821290f27b0270072ca1ff007a6db1d

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