Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cfc49ad1de993c2…

MALICIOUS

PDF

43.9 KB Created: 2021-05-14 09:06:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aceab698dcce2359bcb0b0ff8a59b3b0 SHA-1: 6d37bcb4f8eac2f5a3fd82cc2c3957f44ff8093f SHA-256: 3cfc49ad1de993c2631ed6ab24cff0911271aa3b0cca41c5c8f24369e3f1c5cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a critical link to a known malicious redirector infrastructure. The document body text and heuristic firings indicate a lure for 'game hacks' or 'free generators', suggesting the intent is to trick the user into visiting these sites, likely to download further malicious content or exploit them. No scripts were extracted, but the presence of embedded URLs and the malicious redirector link strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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.xyz/app/406889139/how-to-earn-free-stars-on-coin-master-game-hack In PDF document text
    • http://dopheide.be/images/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://dopheide.be/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/roblox-hack_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/free-spins-on-coin-master-app_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CD 24888 bytes
SHA-256: 1368afb4204d0c5167b57f297449d5402504f04e6d19702f78924b8725483866
font_01_sfnt_off0000807a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807A 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A1D 17872 bytes
SHA-256: 0709ca684ad5453d4a1c2d42e2fc6702b99f6275411c4f1e468931145e99bc4e

Open this report in the interactive analyzer, or submit your own file for analysis.