Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e250dc9797195b6…

MALICIOUS

PDF

34.3 KB Created: 2021-06-20 20:18:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 21de18268e8e7d210d281e76834c29c8 SHA-1: 7245cca8f528ef392f1fb14e16b5323466ea9d47 SHA-256: 7e250dc9797195b6667e2e36b04ab6891373811ac870baf10366c2668dd3f2d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure directs users to 'http://netcdn.co/app/431946152/fencing-reach-hack-roblox-game-hack', which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or social engineering attack aimed at driving traffic to potentially harmful 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.co/app/431946152/fencing-reach-hack-roblox-game-hack In PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/april-fools-roblox-hack_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-hack-robux-download-pc_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-cheat-engine-hack-robux_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-how-to-get-free-robux-without-cheat-engine_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-lua-script-hacks-gui_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0B 22484 bytes
SHA-256: aaed35449bc861e299b1c05ba803ee5534c28fe15730c56d047b71a8116f9785
font_01_sfnt_off00006114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6114 19104 bytes
SHA-256: 0a6c1bc66e325858c078f709c9e18fa2e7ef7909c3229cfca4579c0a830c30bf

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