Malicious PDF — malware analysis report

Static analysis result for SHA-256 df42eda160d29ea5…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 15:47:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1f8aba54460ddded413c8237a6cc5e72 SHA-1: 0964989133a8b19d14cce522f09a021fe66bb36c SHA-256: df42eda160d29ea5fd7924b94ae007a1da9b64832bb69272d4a19d6ecc852b5a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency, specifically mentioning Roblox and Minecraft. It contains multiple embedded URLs, including one pointing to a known malicious redirector infrastructure. The document's primary function appears to be directing users to these malicious sites, which likely host further malware or phishing content. No scripts were extracted, but the presence of malicious redirectors and the lure strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.tw/app/431946152/roblox-royale-high-school-hacks-de-todo-tipo-game-hack In PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-hack-2021-phone_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-make-shirt-price-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-roblox-model_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/instantrobux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/car-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/new-map-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/denis-free-robux-obby-omg_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-install-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/is-tiktok-free-on-app-store_GM835599320.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/get-free-coins-for-coin-master_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
font_00_sfnt_off00002e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E44 21748 bytes
SHA-256: 2f25ad4d77169f33b4a696296fbdd57ef9eca00fb62e0798a5bf565356ece161
font_01_sfnt_off00005de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE6 19640 bytes
SHA-256: d45e2271c40289632b35d975ecfc2b847a33e1d26b3b6f4ef060721a8c31a17c

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