Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68b8c7258512457…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 13:51:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33f0f0494ca463fe25f419a8a4525313 SHA-1: c876c8c82589562c2f09394c12603466650bbc15 SHA-256: d68b8c72585124576ce36915663c22707ecb6eb315841fe9c6fdcbab763c4240
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising 'robux generator' and 'game hack' lures. The document body confirms this deceptive content, aiming to trick users into clicking the links. These links likely lead to further malicious sites, potentially for phishing or malware distribution.

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/robux-generator-no-human-verification-or-survey-game-hack In PDF document text
    • http://artistaone.co/userfiles/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/pokemon-go-free-7-day-research-reward_GM1094591345.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/ip-grabber-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free4now-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-from_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
font_00_sfnt_off0000311a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311A 21892 bytes
SHA-256: 7670af35282a72d9a40f4eedea27088d5c61036b7e5d789af7c3c5c08446f828
font_01_sfnt_off00006168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6168 19464 bytes
SHA-256: e75e93f144ed77cd9995c7c4aa01cfc8705db85b6b3206baee453575801eae7c

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