Malicious PDF — malware analysis report

Static analysis result for SHA-256 566185282d4cf7a5…

MALICIOUS

PDF

44.9 KB Created: 2021-06-02 16:33:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 66939e685898cf906fe80c38cc109296 SHA-1: 05bb4825a6442fe1d7e45563491cb041c5747c54 SHA-256: 566185282d4cf7a5c8c612813af1ed118b4dd36b6b597ac4fd4ea60ed2dd451b
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. These links redirect to malicious infrastructure, specifically the URL https://netcdn.xyz/app/431946152/robux-roblox-hack-tools-game-hack, which is associated with known malicious redirectors. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL, reinforcing the phishing and redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/robux-roblox-hack-tools-game-hack In PDF document text
    • http://www.e-lysis.com/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://www.e-lysis.com/images/pubg-uc-100-bonus_GM1330123889.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-roblox-cupcake-toppers_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-spins-for-coin-master-game_GM406889139.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_off00004f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F76 26948 bytes
SHA-256: 0067560f4c35f2f2a0dc8a7862d886ee52686c1b44407ca768dd3bb7fbbf0f50
font_01_sfnt_off00008cd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD7 18320 bytes
SHA-256: d9786e6d9449518bca2055a4adec3ec6f7ce03e8eb42fd2928aa1298a418190a

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