Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce65fe43ca0e2d50…

MALICIOUS

PDF

33.5 KB Created: 2021-07-01 22:35:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 86b3fa686d90c718f700cb0809bbb920 SHA-1: 6b1148419e899bd08ea2c3ed5cda9155c20b867b SHA-256: ce65fe43ca0e2d50fbbd44a822ba5c8e121c0fdfb6640f66ef533ece2fd2500c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The primary URL, http://netcdn.co/app/431946152/best-free-roblox-exploit-auto-update-game-hack, is identified as a malicious redirector, indicating the document's intent is to lead users to potentially harmful content. No scripts were extracted, but the document's structure and content align with a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/best-free-roblox-exploit-auto-update-game-hack In PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-202120210-woking-feb-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hack-shrek-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/wie-kann-man-auf-roblox-hacken_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-free-robux-on-pc-2021-easy_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/project-lazarus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/linkmon-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hack-de-fly-en-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-admin-hack-dll-download_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-do-you-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hack-roblox-click-tp_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/name-change-client-roblox-free_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_off00002b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3A 22460 bytes
SHA-256: 93f12bb7fcfa5e38cabdaf647bf4fe53a89073a47405300dea3e7c3486acbdf3
font_01_sfnt_off00005d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D16 19364 bytes
SHA-256: da3e25f7068ff37bccdc3ce87ff1b15c628a46b1b8985271c947b83678919c51

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