Malicious PDF — malware analysis report

Static analysis result for SHA-256 926497e9b18c8aac…

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 13:26:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 4d419a4b6ed73fc2d4cc634cf8345c2b SHA-1: 084c7599baad018cf2d0297050780b6c1cbd0b3a SHA-256: 926497e9b18c8aac662fc89677ce01ecfd7ed307495b71fa13ceba63c9f458d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free generators' for popular games. The primary lure URL is https://netcdn.online/app/479516143/hacked-client-for-minecraft-bedrock-game-hack, which is associated with malicious redirector infrastructure. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure strongly suggest a phishing or social engineering attack aimed at driving users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/hacked-client-for-minecraft-bedrock-game-hack In PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/grabpoints-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/moon-active_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spin-link-in-coin-master-game_GM406889139.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
font_00_sfnt_off000054c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54C0 24972 bytes
SHA-256: aaeb5d18add642dab5520cb6fd4c32aa1cc7173ccacefaa7c9b4a19c294af8ae
font_01_sfnt_off00008d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D3C 18344 bytes
SHA-256: b450419ed0caa9533e558d664a7e2ff52fef1aac842a5808c0deaab1d85c69fe

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