Malicious PDF — malware analysis report

Static analysis result for SHA-256 8443fc820d2e05f9…

MALICIOUS

PDF

46.2 KB Created: 2021-05-15 08:16:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3cbd9fef52771eefff8bf316b9c070a6 SHA-1: d515a851c4f5f0adae4c2fa4ec09c30af0350171 SHA-256: 8443fc820d2e05f9c2f424b9e91685424eb8299ae2f932de77aeae544547bf22
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors, masquerading as game hacks and generators. The primary lure is related to hacking Minecraft servers, with other links pointing to Roblox and Coin Master exploits. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack In PDF document text
    • https://cormixhydro.ru/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://cormixhydro.ru/images/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/free-download-coin-master_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://cormixhydro.ru/images/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/roblox-download_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://cormixhydro.ru/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/get-free-coin-master_GM406889139.pdfIn PDF document text
    • https://cormixhydro.ru/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://cormixhydro.ru/images/blogspot-coin-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ba8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA8 25600 bytes
SHA-256: 7dbcf5dc6c36ff538281a52ea977869249abce6b72cf136fc4d4c01bc3e87ea8
font_01_sfnt_off00008629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9039 18884 bytes
SHA-256: c6c75348c8512da505ae943a266b7446b2e14ebdee3fe9748eb8d749779a3ee4

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