Malicious PDF — malware analysis report

Static analysis result for SHA-256 3734de02afd2e02f…

MALICIOUS

PDF

47.2 KB Created: 2021-05-14 03:52:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d68f5bc59e62f24e15e2c3b5b8d9e430 SHA-1: 925b53d3d6fa4b217a98bdab00a609f33304be1b SHA-256: 3734de02afd2e02fc5ec342f839303d1c46688f94921d8581a9315871ba2e421
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests the intent is to redirect users to potentially malicious websites. While no scripts were explicitly extracted, the nature of the lures and embedded URLs points towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/479516143/how-to-get-minecraft-for-free-on-laptop-game-hack PDF link annotation
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ea0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EA0 28120 bytes
SHA-256: 097cc8ada8d9200bdf72d9c70519c1bf8f1cbaa2d5a6f3024bde45085ebd9957
font_01_sfnt_off00008d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1A 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00009704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9704 18052 bytes
SHA-256: e6c5d90690ade955def54cc348d22ccb2455245c015e9db3c0b43713c916dea5

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