Malicious PDF — malware analysis report

Static analysis result for SHA-256 3898c9600543c9f8…

MALICIOUS

PDF

36.3 KB Created: 2021-06-18 15:59:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ab3be6e6cbfb50a2b0e433a56ef633a7 SHA-1: 92534db348180d74e7e2aaea8994290a2e2a777a SHA-256: 3898c9600543c9f88656570f0b7c17cdff4911b197c2478ec202bdb3074b805d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. The ML classifier strongly supports the malicious nature of this PDF.

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.co/app/431946152/how-do-you-get-free-robux-in-real-life-game-hack In PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/how-to-make-free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/how-to-make-your-own-shirt-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/hack-on-god-simulator-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/robux-maker-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/roblox-treasure-hunt-simulator-202120219-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/free-exploits-for-roblox-v3rm_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/how-to-get-anything-from-catalog-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1magetan.com/__statics/gudangsoal/files/how-to-get-free-money-in-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000358a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x358A 22360 bytes
SHA-256: 7decc0b860d096cbaac88e891459d1d11c2a73ea0f9993d45f96bd7e8c9c404b
font_01_sfnt_off00006773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6773 19508 bytes
SHA-256: d51241e89f4f338859be71f83b97d5113597b56e54ba95d5f0a17f8bb085cf48

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