Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9da9363310cecc5…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 01:39:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6d8120e598db27bf45b1bcccf0f4b452 SHA-1: 5a179b0fedfcec452f5f756dbc41ec9d9d05c624 SHA-256: d9da9363310cecc518b542e3f834785171951ad2bdf39eea09ef5b40b720623b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, presenting deceptive links related to game cheats and free items. While no scripts were extracted, the primary attack vector appears to be social engineering via a malicious link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-admin-thumbnail-roblox-game-hack In PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/mcpe-116_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/dragon-ball-rage-roblox-cheat-engine-hack_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-hack-online-pc_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5B 21952 bytes
SHA-256: e04342bf5f98acff17f3f43cbc62b96f7491b474b77b460075e0c8071202db45
font_01_sfnt_off00005f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1D 19508 bytes
SHA-256: a32c7b49e18dfec3a8148a0648ceb2b1c379732b014c35f0a1389685949a3d56

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