Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2f5d8328f52b64…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 03:51:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 31033da70f18d4b50cb227c5ef59121c SHA-1: 15fabcf28c37e2a06bca730dfb887a0650dbf581 SHA-256: 6a2f5d8328f52b64aa3cabc42f420786d02f5e354a04d085282f085c19492f98
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free generator / game hack' which is a common social engineering tactic to trick users into downloading malicious content. The document links to several URLs, with http://netcdn.co/app/431946152/hackear-gta-5-updated-roblox-game-hack being a primary indicator of this malicious intent. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.co/app/431946152/hackear-gta-5-updated-roblox-game-hack PDF link annotation
    • http://sd-olimp.hr/files/cheat-engie-how-by-past-roblox_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-free-robux-unlimited-robux-and-tix_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/free-robux-cheatengine_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/how-to-hack-roblox-and-get-robux-on-first-attempt_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/pubg-uc-jarir_GM1330123889.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/best-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://sd-olimp.hr/files/how-to-get-free-likes-and-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://sd-olimp.hr/files/how-to-download-minecraft-for-free-on-pc_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
font_00_sfnt_off00002ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE1 22240 bytes
SHA-256: dca3e96f85bc06b6df85686076749a9805a29eb4d12e431547a9cd30485c24e1
font_01_sfnt_off0000604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604B 19244 bytes
SHA-256: 93c70d202808798532885fa15a3e72501e54e24dc6fe27ff7fdc0bd586e80b0f

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