Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c02ed4b5d3030c4…

MALICIOUS

PDF

38.1 KB Created: 2021-05-30 05:38:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 45de849a39391138bc159071771ed050 SHA-1: aa684bba25b33db0ba3e4dc5144011a49fd04b2b SHA-256: 8c02ed4b5d3030c43c4edb114e55fe7cca5e1aae88963a5a4b5e06d579fe8a10
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free game hacks" or "generators". The document body explicitly mentions "Minecraft Pocket Edition Free" and "CLICK HERE TO ACCESS MINECRAFT GENERATOR", reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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/minecraft-pocket-edition-free-game-hack In PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/is-minecraft-java-edition-free_GM479516143.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_off00003b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B86 24612 bytes
SHA-256: 9fbccd74219483f1d5085dd15c0b232ecd7d78eb4b2fb0cf6890dc3e7e9a42c9
font_01_sfnt_off000073ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AB 18208 bytes
SHA-256: 2ed6c6c26b313aca39a14255061e0cb7ebbe0fc3f7500b174c0a7a92c92a7b7b

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