Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fcc2039a2a13d84…

MALICIOUS

PDF

35.4 KB Created: 2021-06-20 11:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 513494afde3a75e743920771c8585b38 SHA-1: dfba86e2d2c80614e93e59ec0d616d0c45a2c55f SHA-256: 7fcc2039a2a13d845d340f974d670e0f456c61b0c467ff44de3659d965c203c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free in-game currency for Roblox, directing users to a malicious URL. This URL is identified as a known malicious redirector, indicating a high likelihood of leading to a phishing site or malware download. The presence of multiple similar PDF files hosted on the same domain further supports a campaign distributing malicious content.

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.co/app/431946152/roblox-is-giving-away-free-i-robux-at-rbxgift-cf-game-hack In PDF document text
    • https://www.devries-group.de/images/roblox-hack-crazy_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/tiktok-free-likes-app_GM835599320.pdfIn PDF document text
    • https://www.devries-group.de/images/free-gift-card-ins-roblox_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/imba-tools-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-currency-hack_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-dragon-ball-final-hack_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-robux-come_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-email-and-password-hack_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/rbx-gg-free-robux_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_off0000322d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322D 22400 bytes
SHA-256: 70a7fb2798c4ee77d2ba47c023d43bbeed69d5a332a5d422ec848d68bddf485f
font_01_sfnt_off000063d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D1 19472 bytes
SHA-256: 20eb2e40118b4e2abc87de034b118ebb8beb0289b4323a2acaa31cee814297f8

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