Malicious PDF — malware analysis report

Static analysis result for SHA-256 2799cad627661f08…

MALICIOUS

PDF

43.9 KB Created: 2021-06-10 19:54:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3cbdfe2413cd55b24c806eeb8ba281c6 SHA-1: 3bcadf015cecd70ffc7a3203af2dc33a53e301d0 SHA-256: 2799cad627661f084cb1172b28899ca7286418b65af405f065a25c65ebc2a255
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to malicious infrastructure. The embedded URL and document body text reinforce this, indicating a phishing attempt to trick users into visiting a malicious site. No scripts were extracted, but the primary attack vector is the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/roblox-scripters-for-free-game-hack In PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/hack-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-for-pc-no-human-verification_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-hack-net_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-coins-on-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-ore-tycoon-2-bag-obby-cheats_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_004_off00004f1a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F1A 25772 bytes
SHA-256: 305728a1d131e943b9a17aff261d2ec16840d5341c2dc7699d43d557ab51bc26
font_01_sfnt_off000088ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88EA 18348 bytes
SHA-256: cccedb3595a553abad8ffc8b57408a087ed01c193b1981bc02d693842ba12d0b

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