Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac3087bf4d42f43…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 05:25:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf1963ae0696a5016a2fe9f4e90a74f4 SHA-1: a6ce20f9ebbdc9d0b7d85c127d2399855b7d4860 SHA-256: eac3087bf4d42f4385974e6216f8a139e94b99b64f91f4520aceaf325ffac487
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/cool-roblox-skins-that-are-free-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.co/app/431946152/cool-roblox-skins-that-are-free-game-hack In PDF document text
    • http://repository.poliven.ac.id/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coun-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-money-logo-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/pubg-uc-qatar_GM1330123889.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-android-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/2-player-cheat-pizza-tycoon-in-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-deathrun-hack-script-money_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_off00002e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0D 22088 bytes
SHA-256: 1996c4ad531e68579db19a6f8feac221e3303200f92243218654422b9a80e7b9
font_01_sfnt_off00005f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2B 19212 bytes
SHA-256: 84e61893d0b30a4b6c0f86a5b840990aac704569e75b3fc762e3b39261b6a652

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