Malicious PDF — malware analysis report

Static analysis result for SHA-256 924da90d80ef0b33…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 11:12:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fcc652f4cf0deec12017c1f203255a4 SHA-1: 47df4dec5cb0f89f19f9e2ebe478e01ab725d533 SHA-256: 924da90d80ef0b33ba79f6d441c081b8a04c2f8ebadfec0a4c8f54030f085924
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, disguised as free game hacks or generators. The heuristic firings indicate that the document is designed to lure users into clicking these links, which likely leads to further malicious activity. Although no scripts were extracted, the embedded URLs and the nature of the lure strongly suggest a phishing or redirection attack.

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/479516143/can-i-get-minecraft-for-free-game-hack In PDF document text
    • http://perpustakaanlia.net/katalog/repository/trucos-para-free-vip-ultimatesurvival-rpg-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-hack-script-tampermonkey_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/best-roblox-hacked-clients-2021-youtube_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-robux-hack-online-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-p_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-free-rthro_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-hack-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-race-track-free_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/robux-download_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-account-hack-2021-works-next-video-with-proof_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-promo-codes-wiki_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/funny-roblox-avatar-ideas-free_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-eu5-net_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/how-to-hack-roblox-tycoons_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-weight-lifting-simulator-how-to-hack-stats_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/how-to-get-free-robux-really-fast_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/how-to-fly-cheat-engine-roblox_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_off00003074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3074 22644 bytes
SHA-256: e5d5c10b4dc98a7c4c36c1205af7eb82bb03120d12cf317ad925a0bba502233f
font_01_sfnt_off000061f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F1 17996 bytes
SHA-256: e6fcd10c978a651d981c94814daa7d4c9dc519d22899a404f27347f868a504f2

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