Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f7cb2297502cec…

MALICIOUS

PDF

47.9 KB Created: 2021-06-11 04:55:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f496801af1d09f8bbd688321a9563d26 SHA-1: 093d821454f79438805bce4df266ea6f1dbf57be SHA-256: d9f7cb2297502cec326feba94ad496b0cdb049749d980df72a417c4caf036894
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and free generators. The primary lure appears to be related to Roblox and Coin Master, aiming to trick users into clicking malicious links. The document body, though partially corrupted, contains references to these lures and the malicious URL. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/play-store-games-free-download-roblox-game-hack In PDF document text
    • http://www.eaapiaria.es/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/como-conseguir-el-egg-hunt-de-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/jojo-characters-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/roblox-hack-game-2021_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-robux-hacker-come_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/hack-crack-for-coin-master-currency_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E63 24800 bytes
SHA-256: 2a8d09e7cbcf2c627c850e8e85aaa85d9ed4005c0f793c7219a71231eb5c188b
font_01_sfnt_off00008675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8675 6100 bytes
SHA-256: f866077ce59d6ea276f75e4af76daa2aab5f3a1a679df144776123d85664d65c
font_02_sfnt_off00009501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9501 19380 bytes
SHA-256: 8446119bfa71c62e2dafba89a25c048318802444e79f4d19649508d64ea241c3

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