Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c74372239450bcc…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 05:37:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: bcbcc61f40868691bc716a131220bb02 SHA-1: c369a6ff3e4dae1f685331b0d31160e903768c69 SHA-256: 0c74372239450bccaef50633a735c6fdf1bc243f61ca6736cac46e874a44f3bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links designed to lure users into clicking on a malicious redirector URL, specifically advertising free Robux or game hacks. The primary malicious link identified is http://netcdn.co/app/431946152/how-to-get-robux-on-roblox-for-free-no-download-game-hack, which is flagged as a known malicious redirector. The document's structure and content strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-robux-on-roblox-for-free-no-download-game-hack In PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/roblox-apk-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/html-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/flame-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/get-800-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/dl-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/counter-blox-roblox-offensive-hack-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-on-united-kingdom_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2kotamobagu.sch.id/__statics/gudangsoal/files/robux-hack-no-verification-2021_GM431946152.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
font_00_sfnt_off000030fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FE 22188 bytes
SHA-256: 1328402fb4dbe8028b7a1fd4006070bfd90c91111a6231394ce2b721e4374d8b
font_01_sfnt_off00006211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6211 19400 bytes
SHA-256: c9f70d42feb8e0730c64b406b60b38f1ec958b263bada60067077caf5e47c5b1

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