Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea174f6d22f65211…

MALICIOUS

PDF

42.8 KB Created: 2021-06-07 10:18:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4d85d7ebf91a513fbb0d5a4449f9a5d SHA-1: bb7bae9f13f978b7877d7d73cbb4ba803ad8b246 SHA-256: ea174f6d22f65211924ac721f5c835721344d0e5d03eb6bb3a117d14d655f20d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to known malicious redirectors, specifically promoting 'robux hack tool' lures. The document body and embedded URLs reinforce this theme, directing users to sites that likely host scams or phishing content. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.tw/app/431946152/robux-hack-tool-android-game-hack In PDF document text
    • http://ims-77.fr/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/como-hacer-hacker-en-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/best-way-to-get-free-robux_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
stream_004_off00004acf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACF 25688 bytes
SHA-256: fa4d81fa7a7326c0d39082b1deb405a9675f2bf989a90d31f89560dcbfed37d5
font_01_sfnt_off0000837f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837F 18616 bytes
SHA-256: 392671823920e604afc4ceb9600492f1c359103b88a1f1f4aa9a29971f69618d

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