Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0bc5958b1b1c19…

MALICIOUS

PDF

40.1 KB Created: 2021-04-30 19:09:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: afbbbc7b80f18ea3d1547f0b5d144858 SHA-1: bfa4ba8c4600dfa6172b48caccc519da6d994c84 SHA-256: ea0bc5958b1b1c196038ee834400bf57b304d891e7c691bf150fae82ec99f4e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as a 'Roblox Hack Generator'. The document body and embedded links strongly suggest a lure to a scam or potentially a malware download site. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/snip-roblox-hack-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/free-doge-hat-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-to-get-robux-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/dragon-ball-n-roblox-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-doge-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-free-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-all-roblox-games.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-5-robux-site.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-long-hair-roblox-codes.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-it-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-no-robot-check.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00003de4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3DE4 26352 bytes
SHA-256: 1e10b82ba30e1fb97d9b4ca32727c6189185af5a6065c244b4d0d0fdc8742881
font_01_sfnt_off00007a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A67 18480 bytes
SHA-256: b8814aa2782caa56d7d34b290211a4548972905cd69485640b0fac79df998f02

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