Malicious PDF — malware analysis report

Static analysis result for SHA-256 be26e2748afd5a63…

MALICIOUS

PDF

49.3 KB Created: 2021-06-03 06:56:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d15dea358ca4a7770c1bd3e26f0e92ef SHA-1: aae89546d19addb43e334848a9410c43237a644d SHA-256: be26e2748afd5a63decc7ac016a42b15e743405886198b0f9f29ae8e2c8abce3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' or 'game hacks' for popular mobile games. The primary lure URL is https://netcdn.online/app/406889139/coin-master-free-spons-apk-2021-game-hack, which is flagged as malicious infrastructure. The document's content and embedded links strongly suggest a phishing or scam attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/coin-master-free-spons-apk-2021-game-hack In PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-generator-com_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-blogspot_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000547d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x547D 25844 bytes
SHA-256: a22d9c2ce2739dbc142289167c5b8f3c3eb0d02076f8d9e8df90e036bb128a53
font_01_sfnt_off00008e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8C 3204 bytes
SHA-256: b7fe42cb1da39e96c756399b3532633df029c1fbb3443b9e17d98df25c90dc65
font_02_sfnt_off00009990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9990 19784 bytes
SHA-256: 464fd26c57017d0fc6483e41aadcfd40656d610657598202d965cf2e3c3f01f0

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