Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f51bee2cd34a6c…

MALICIOUS

PDF

42.1 KB Created: 2021-05-20 01:11:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: ab60ba623df867faa95a2725a05a82f4 SHA-1: d5f31d180683fe45c6152e23c6e060ed27cf6aaf SHA-256: f1f51bee2cd34a6cda2c9d8d8f85353cfda22d5f6fbaf554a746c66e62ccd0a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to potentially malicious websites, masquerading as free game hacks or generators. The heuristic firings indicate that these links are part of a known malicious redirector infrastructure. The document body and extracted URLs strongly suggest a lure to trick users into visiting these sites, likely for phishing or to download further malicious content.

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/free-minecraft-windows-10-account-game-hack In PDF document text
    • http://livsgnistans.se/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-a_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/tiktok-free-open_GM835599320.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004828.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4828 25352 bytes
SHA-256: e7f89ab9375843ac98f6065e97727d32289a3ab6a41e643d8144786cd99129fb
font_01_sfnt_off000080fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FA 18664 bytes
SHA-256: 0667defd5b981729aa81a804935fb7ded52a2ddc2e462daaea0df5db4134a477

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