Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c1e6dd0cf7fa138…

MALICIOUS

PDF

46.7 KB Created: 2021-05-30 14:59:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2a71ca47e838b79b84dc38158837973d SHA-1: 0156b7e593e280cdf6bc97e49e2d63248e9476f6 SHA-256: 9c1e6dd0cf7fa1383e60b9f6761ad15d441a09474eb032b86df9d32383e01585
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 'free game hacks' or currency. The primary lure URL is https://netcdn.xyz/app/431946152/how-do-you-get-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering tactic to drive users to potentially malicious websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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/431946152/how-do-you-get-free-robux-game-hack In PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://iba.org.fj/wp-content/uploads/fsqm-files/coin-master-daily-free-spin-app_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
font_00_sfnt_off00003f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F36 24952 bytes
SHA-256: d36549fd2fd731351e4b82d46e135c3b79bafad99044628964037c89cfab2233
font_01_sfnt_off00007902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7902 8376 bytes
SHA-256: 092b7a11ef2af93d0b61b37032e6f669359ea7bc5bcb682d43a712f599a5ca39
font_02_sfnt_off000093d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D0 18612 bytes
SHA-256: 37b0398febc23a1417b5642eaebf6c5e0b941c8fdaeae9a9e3ba89062b3e12f9

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