Malicious PDF — malware analysis report

Static analysis result for SHA-256 1797e38f1fc0936e…

MALICIOUS

PDF

44.5 KB Created: 2021-05-19 04:00:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b5ed4d56aecb963c684fe9d0693f33d4 SHA-1: d75d77e2ef8eca5b6651d811ba85a7f9667d2880 SHA-256: 1797e38f1fc0936ec104a46b792aeb23354e4340d57b750e733a8cd2c91e8198
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The document body and extracted URLs suggest a phishing attempt to lure users to potentially malicious websites. No scripts were extracted from this sample, but the presence of numerous malicious links indicates a high likelihood of further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/835599320/where-tiktok-free-views-app-game-hack In PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004760.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4760 25140 bytes
SHA-256: 1ddb823b0695bf2ff4481974c502a80fce5a47041cf4eb35f243e144de92e2af
font_01_sfnt_off00008188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8188 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00008b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6D 18296 bytes
SHA-256: 297a1d53986411a73f6d92cb1550f3f20582921c283b5bec7c5f38d296dd6923

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