Malicious PDF — malware analysis report

Static analysis result for SHA-256 3895920ec2f5cc15…

MALICIOUS

PDF

44.6 KB Created: 2021-05-16 21:06:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0224574f495c976399fb5bd4a0c27bc SHA-1: d3feaa846d9aa54399fea3dbe46b65ae416fed3d SHA-256: 3895920ec2f5cc15f0ae93350be2bc0a7d383c13c8a329fb40efb1107225b66c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains multiple embedded links that point to known malicious redirectors, specifically advertising 'free generator / game hack' lures. The document body and heuristics confirm the intent is to drive users to these malicious URLs, likely for phishing or to download further malicious content. No scripts were extracted, but the presence of malicious links and redirectors is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-spins-and-coins-coin-master-game-hack In PDF document text
    • https://lobergetart.se/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/roblox-army-robux_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • https://lobergetart.se/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/roblox-ban_GM431946152.pdfIn PDF document text
    • https://lobergetart.se/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://lobergetart.se/images/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47B2 24844 bytes
SHA-256: 88ba95cea11a6a9965147eca8c656b0cfb7aba6401b52977fd827be1a6b5b8d4
font_01_sfnt_off00007fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEE 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off00008c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C73 18060 bytes
SHA-256: d4954d2d00bde9f6a1061857a61d2c62c1ae360f44744af150ee923481526d51

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