Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1402a2175e4312b…

MALICIOUS

PDF

41.8 KB Created: 2021-05-16 16:06:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d87a2ee12a5b925b2fef16b6fb7f7cdc SHA-1: bf5aa824220bf54507239692b48de800e8267cce SHA-256: b1402a2175e4312bfab8d21765e7738fdaccd8639ea56b05fa67890d6b8aac9f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and 'spins'. The document body and heuristics confirm the presence of these lures, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/free-minecraft-hacks-game-hack In PDF document text
    • http://m-sv.net/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/hack-avatar_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • https://discord.ggIn 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_off000049b4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B4 24964 bytes
SHA-256: dc239c9c34c2f2b35399ecb98b7d97b28cab510a59b425df0a62fc5576062b93
font_01_sfnt_off000082b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B8 17740 bytes
SHA-256: 02673fc9b31aa1f7767db1cd16a9f6370da751ac2c2fa3ca820772adadbcecd3

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