Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ecf928d4a3ed0df…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 22:08:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b5fef332bfe9351daf3c0d96e4e56583 SHA-1: c2da3eea827be3682dfde9e74841a51eff70ff32 SHA-256: 7ecf928d4a3ed0dfa99190cb2627c8f17e971be9a9ecb29615b882cc2141d3b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and sites offering game hacks and free currency, such as 'https://netcdn.xyz/app/431946152/free-robux-android-game-hack'. The document body and embedded URLs strongly suggest a social engineering lure to drive traffic to potentially malicious websites. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/free-robux-android-game-hack In PDF document text
    • https://labdagatismk1pundong.com/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b77.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B77 25644 bytes
SHA-256: e2aec451dfd8d19cdeb7aca82354362e8455dd47d9d00fa07fcd2599a67adf8f
font_01_sfnt_off000086a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A5 18308 bytes
SHA-256: 3d682ae06d788585f0d48ef4471ddbfed33e391fd6a867cb0ce2fb595824b3ec

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