Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf459b9c43a2328…

MALICIOUS

PDF

34.8 KB Created: 2021-07-02 08:39:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 01eac99f48a7b38ae324c03ecf675a95 SHA-1: 0d422aec399ae25fe4e87cbf9c10f5252c3c2032 SHA-256: edf459b9c43a23284f6f374304b775df8604811014ccafdf460518c1638ed0b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically advertising free Robux and Coin Master spins, which is a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous embedded URLs reinforces the malicious intent. The document's primary function appears to be directing users to potentially harmful external sites.

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-robux-gift-cards-2021-codes-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hacks-para-mad-city-roblox-rock-spolit_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-hack-roblox-with-cheat-engine-67_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-valkyrie-giveaway_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-on-roblox-2021-easy_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/pokemon-go-free-yellow-egg_GM1094591345.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/script-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-coins-in-murder-mystery-2-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-do-you-hack-roblox_GM431946152.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_off00002ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF6 22276 bytes
SHA-256: f258d6ad62ae906e26a2098c052bcad13a4ee268bde3a1f260e4048a38297891
font_01_sfnt_off00006158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6158 19516 bytes
SHA-256: 29e75f30c5e86761bb92b3b01e6b6c9178fe3a430d56702e6e4d31a38e0984ae

Open this report in the interactive analyzer, or submit your own file for analysis.