Malicious PDF — malware analysis report

Static analysis result for SHA-256 97125f8288fc9df7…

MALICIOUS

PDF

35.7 KB Created: 2021-07-04 23:30:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6cf964e6b0540ed1e19489ecbd884eeb SHA-1: 56be446276f5ea4cb10b87c55783a7b13fc2c5fa SHA-256: 97125f8288fc9df7a664113fa28e63bc7d99bf9d2647bf472d9004c6dfad0433
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.tw/app/431946152/how-do-you-hack-roblox-game-hack, which is flagged as a malicious redirector. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or social engineering attempt to lead the user to a compromised site.

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/how-do-you-hack-roblox-game-hack In PDF document text
    • https://allhimalayantreks.com/userfiles/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-controversy_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-level-7-exploiter_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-images_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-free-script-executor_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/mcpe-optifine_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/robux-generator-2021-free_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_off000033d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33D9 22528 bytes
SHA-256: fa944c1b9dfac97a4223d8134842f5a6c708ce7754076bd2c7abf479c0aa8234
font_01_sfnt_off000065a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A6 19292 bytes
SHA-256: 9995eaa591a4ae7360538d13bc69f9b48a4c6000d4d0fc373ba7f602d67ad74d

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