Malicious PDF — malware analysis report

Static analysis result for SHA-256 07fcab02181cd176…

MALICIOUS

PDF

42.9 KB Created: 2021-06-03 22:34:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 29f1d0374ec0cc4c235b490d9008aa99 SHA-1: 150e7b56ba0e4c3ac1b23a2e8f71efb7a4927a33 SHA-256: 07fcab02181cd1766194fc0c903676407ad71dcca0ac99dd93e2a6a0d2a4774d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to a known malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body, though partially corrupted, also contains a similar URL, reinforcing the lure. The presence of embedded links and the nature of the lures strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/406889139/free-spin-coin-master-app-download-game-hack In PDF document text
    • http://www.elibrary.perludem.org/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-game_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-box_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/pokemon-go-free-coins-2021_GM1094591345.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-tiktok-comments_GM835599320.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
stream_004_off00004e3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E3A 23876 bytes
SHA-256: c1f3dfd348c0da9dfdc3a6d2aa14beb7557bc6f8a707e8178d851b9cf9912798
font_01_sfnt_off00008489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8489 18464 bytes
SHA-256: 5d479065cf79f2f9a0a9ab9e4084ffa9868228cef0b1d352b42e78b889d944c6

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