Malicious PDF — malware analysis report

Static analysis result for SHA-256 0642b466ed3081c0…

MALICIOUS

PDF

43.2 KB Created: 2021-05-19 22:37:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9efbab1f5140e38f16e934bbf2136327 SHA-1: 7ff05c77147c307bdc1ba0309bdb5b1f22ba8e7a SHA-256: 0642b466ed3081c010e5b4606cc814be73f44f72bae7e82392f5215adaab1cd1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free Robux'. The primary lure URL is https://netcdn.xyz/app/406889139/free-coin-master-hack-no-verification-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick users into visiting potentially harmful sites, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/free-coin-master-hack-no-verification-game-hack In PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/minecraft-client_GM479516143.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://elearning.min2kotamalang.education/__statics/gudangsoal/files/free-custom-minecraft-skins_GM479516143.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_003_off00004c4b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C4B 25876 bytes
SHA-256: 02c589a89369899c613b5488ad57921c506dece5d1ce202b2d06f8ae829d0c51
font_01_sfnt_off00008779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8779 18016 bytes
SHA-256: 22df04c4dacbc852f4ecaf83adb1826ed6293343c5161e377e09b669fc2092ee

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