Malicious PDF — malware analysis report

Static analysis result for SHA-256 7faf772ab2a97002…

MALICIOUS

PDF

44.7 KB Created: 2021-05-13 23:55:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 894f9ab9a349d1e8a15ab87f4041fbdd SHA-1: 2030d46188c1bcf4fa3d6981ad0f948e54bc259b SHA-256: 7faf772ab2a9700231ca432db6b91c6da326eba7576b04f661270d888b038661
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator / game hack" lures. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The primary function appears to be directing users to malicious websites, likely for further exploitation or credential harvesting.

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/431946152/dailyrobux-game-hack In PDF document text
    • http://cosmosdawn.net/images/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-gift-hack_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_off000045a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45A1 25640 bytes
SHA-256: aeb918ef563e81eed237f9f9213344dcc462d1527652ca39a36f721b901e32ee
font_01_sfnt_off000080df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DF 2896 bytes
SHA-256: 0f10adbf105d053971010bc1f17c4dd55814d599674c84f75a6eb4cb46a9c89b
font_02_sfnt_off00008ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD6 18620 bytes
SHA-256: 006376ad9c7b73d4fd15d3b6dd3ffa9064f0af8ff6d6cdc29d45d1e9c8c3f0f5

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