Malicious PDF — malware analysis report

Static analysis result for SHA-256 454599a3539017ef…

MALICIOUS

PDF

46.0 KB Created: 2021-05-13 23:54:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3805750adccf8cf622703f4a6296b7b3 SHA-1: a9931a8a3d950e99cba0a35b8524ed577f51c30a SHA-256: 454599a3539017efa4470a9ef77d4efe26154586a6ae3118b2e7dc684b2b0a34
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that point to known malicious redirectors and potentially malicious content related to game hacks and generators. The ML classifier also flagged this PDF as malicious. The presence of these links suggests an attempt to redirect the user to sites that may host malware or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/431946152/roblox-its-free-game-hack In PDF document text
    • http://livsgnistans.se/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/2021-roblox_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-actually-get-free-robux_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47B9 26736 bytes
SHA-256: 601774e2d9d7d132958947c329b6be6e1c7b55bbc1f835c4c1520cab6c60db81
font_01_sfnt_off000084d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D0 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000091e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E2 18052 bytes
SHA-256: 28e620bd92ed75496c639b0b0098322fdf5e49df4814623abb0c2769f623a81c

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