Malicious PDF — malware analysis report

Static analysis result for SHA-256 e53ce944e01eb73c…

MALICIOUS

PDF

42.1 KB Created: 2021-05-11 05:30:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 202ac582f129db8111da594939ada7e9 SHA-1: 1515db1c035a8e5b6de7f9ec84d7f3134c2fdccf SHA-256: e53ce944e01eb73c01c5bafb1f952a9906e53e4158e997a6e267b379b2bc50bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting "game hacks" and "free generators" to lure users. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The primary malicious activity observed is the redirection to potentially harmful websites, likely to host further malware or phishing content.

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/406889139/coin-master-card-hack-apk-game-hack In PDF document text
    • http://mohacad.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://mohacad.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mohacad.com/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://mohacad.com/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://mohacad.com/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://mohacad.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://mohacad.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://mohacad.com/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://mohacad.com/images/free-minecraft-server-hosting-with-plugins_GM479516143.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
stream_003_off00004a98.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A98 24624 bytes
SHA-256: b3ea9332bda9aae5768c60ad65a35329eb9b195df31577c1d2d68132d51bbe43
font_01_sfnt_off000082d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D5 18068 bytes
SHA-256: 253c022fea36e2edfdded8e932a5d2c5ace7c2c75107348eb73538d72e63084f

Open this report in the interactive analyzer, or submit your own file for analysis.