Malicious PDF — malware analysis report

Static analysis result for SHA-256 941120418eda55b4…

MALICIOUS

PDF

57.1 KB Created: 2021-06-03 19:48:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 12926fdb0647ba397b5f07c7af8f774b SHA-1: 3705789af587781bd74a1ccab2e19e417511ad67 SHA-256: 941120418eda55b4684ff32d48ed71eb4ff5dbf8dff589dc578d37ebe4dd4871
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting "free generators" for games. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest it's designed to lead the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9680

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.online/app/406889139/free-coin-master-app-game-hack In PDF document text
    • http://www.rewaqousha.net/userfiles/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/wurst-commands_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A9 27144 bytes
SHA-256: b713fb9cae286bc180827d307daa136b5a4a54f9ba91aaa8d6d677f65dab8b4a
font_01_sfnt_off00009125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9125 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off00009bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF0 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000af16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF16 17884 bytes
SHA-256: c91e1147911e8cb6a9d887c860ea45f4a2f31ad94033e64533e9785798adbab1
font_04_sfnt_off0000cfd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD6 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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