Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fc7a95618b4d6e8…

MALICIOUS

PDF

45.1 KB Created: 2021-05-16 01:32:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3c60efba6b33486186d55eff8244ab15 SHA-1: aaaadb6210fc5c3882c099d687a0fc867e5de8d8 SHA-256: 7fc7a95618b4d6e8009324cfaf4896726befe5f96b83b63ce3b43a1dfb681760
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and free currency. The document body, though heavily obfuscated, contains URLs that align with the heuristic findings of a malicious redirector lure. The primary goal appears to be directing users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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-free-minecoins-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/i-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/client-minecraft_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-coins_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_003_off00004a79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A79 25736 bytes
SHA-256: 6243364e8bf6270df8e16761bf07a45638e2b3c0c15ec7e5799ec1bcb3d42392
font_01_sfnt_off00008581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8581 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F90 17712 bytes
SHA-256: 84922fa40070066ef4f1a201e85f9de45244526ee00faa1dc92053ed0f889265

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