Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b89607485f24e5a…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 01:01:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 41e0307736849b92170320f6760df578 SHA-1: 50af03956b18656bd9546008538970c0ab8b7650 SHA-256: 7b89607485f24e5a9c299f4c5b74c0ee2053914daf225439e0a306bc7ed55009
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and free in-game currency. The primary lure is a link promising 'how to get minecraft for free on tablet game hack'. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the heuristic firings strongly indicate a redirection-based social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-to-get-minecraft-for-free-on-tablet-game-hack In PDF document text
    • http://neltalen.nl/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://neltalen.nl/images/robux-page_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://neltalen.nl/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://neltalen.nl/images/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://neltalen.nl/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://neltalen.nl/images/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://neltalen.nl/images/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://neltalen.nl/images/robux-free-online_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
stream_003_off00004add.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADD 25460 bytes
SHA-256: 407b027dacf467bb9840a3ad4990382a1d74f69230b6fb82e4a7aaf5bdf9099d
font_01_sfnt_off000084b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B7 18104 bytes
SHA-256: 355b14cb1237cfcb324f2687d1fc3cafef0ca686705333751d3cf0333155011f

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