Malicious PDF — malware analysis report

Static analysis result for SHA-256 792c34274e2eecf5…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 04:43:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edb6967dee44a1e06246091fab13ddd9 SHA-1: a0b72177206dc72bd5869d25e6aedf4de4c21580 SHA-256: 792c34274e2eecf5b0c400c12605587bc9cfb8974fc79a730b5e5a9f1d814533
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The heuristic firings confirm these links point to known malicious redirectors and a game hack lure. The document body, though partially garbled, contains references to these lures and URLs, indicating a social engineering attempt to trick users into visiting malicious sites.

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/robuxmatchcon-game-hack In PDF document text
    • http://perpus.stfm.ac.id/repository/hack-para-simon-says-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pubg-uc-new-redeem-code_GM1330123889.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-be-a-vip-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-hack-ipad-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pokemon-go-free-100-iv-map_GM1094591345.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pokemon-go-free-legendary-hack_GM1094591345.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-script-executor-free-download-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3197 22552 bytes
SHA-256: e7167369d6be8044985656fae2829dfd10ff9d075dd0298a24e38b01bb15e3e7
font_01_sfnt_off000063df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DF 19084 bytes
SHA-256: 22fb853357d700a883506443e03244379ebe89dfe763389f41fb0df375e68649