Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c049f5fb429475c…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 18:13:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94d90f7a86ff5c6a9b2cc0b81da85617 SHA-1: e56b95ab0d6a68895673270b812a7639eb2b5e35 SHA-256: 7c049f5fb429475c459f649a7e7a68f6f03335d530cb6bff4a2d3290625d61fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and heuristics indicate a social engineering tactic to trick users into visiting a malicious URL, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the primary attack vector is the malicious redirector link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/get-free-robux-com-game-hack In PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-game-for-free-online-in-toysrus_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-roblox-robux-sites-that-have-no-human-verifacations_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-mad-city-money-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-make-shirt-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/cheat-codes-for-roblox-legends-of-speed_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-giveaways-top-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-robux-no-download-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-hack-piano-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-robux-no-anti-spam_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/anyway-to-legally-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-computer-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-robux-bettergenerator-us_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/get-free-robux-now-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-change-your-name-for-free-on-roblox_GM431946152.pdfIn 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
font_00_sfnt_off00003172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3172 21880 bytes
SHA-256: 79246808a30fa8543f4d6b1b962b7d54fc14233a0f619b76f8f850e4d0e3894c
font_01_sfnt_off000061c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C6 19080 bytes
SHA-256: bd48df5b3587c62f460ac4547970d78652d76b982da8f06603591dccd4bca80f

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