Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0150c53317828c…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 02:19:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b98352c99d808bb006a71c312df41e73 SHA-1: 1cc945fccf1148aeea5b9dfbe077e7c274b1fa89 SHA-256: 1c0150c53317828c5901bbc7163a58d23600cb0cf9e9efb10a1ed47aa11a93d7
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 'free generator / game hack' lures. The presence of a visual download button further encourages user interaction. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest it is designed to trick users into downloading a second-stage payload.

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/835599320/freer-pro-tiktok-game-hack In PDF document text
    • http://library.patria-artha.ac.id/repository/edit-avatar-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-no-hack-or-download-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/como-hackear-una-cuenta-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-real-easy_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/hack-roblox-jailbreak-2021-agosto_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-script-executor-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/is-it-illegal-to-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/weird-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/gas-station-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-ninja-animation-pack-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/robux-come_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_off0000314a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314A 21936 bytes
SHA-256: 37a50ab703b1dbc14bccadead60dfbadf4d529e3eedfe7ac5e1613459f406b35
font_01_sfnt_off000061a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A4 18128 bytes
SHA-256: 0125a7370cc2e28d0f68b335d7434c4e8f9dafa1e0130f090b4414da76c3f937

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