Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fb1be0172362210…

MALICIOUS

PDF

48.1 KB Created: 2021-05-17 20:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3b43fa13c0f58d176ac15fa82e657089 SHA-1: 00a0da719adf20b4cbe599d13a6701be2178c317 SHA-256: 7fb1be01723622109c82163096502d13a4025cf07b9d2ce12173e5a9e7d813e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks or generators. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The primary malicious activity observed is the redirection to potentially harmful websites, likely to deliver further malware or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/coin-master-game-hack-link-game-hack In PDF document text
    • https://elite-house.su/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/robuxfree-con_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/body-roblox_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-ad_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b30.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B30 25888 bytes
SHA-256: 28a04a95dfb3b3d8da2d317f9b4f1d956b663b274fd7bd10d93855332c3cd271
font_01_sfnt_off000085ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85ED 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00009a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A77 17976 bytes
SHA-256: 4c1d26c1fb4feed8092d99a8761960172faa49b0c213e7324f16c91828cd6f14

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