Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be3d69b87247e9e…

MALICIOUS

PDF

42.8 KB Created: 2021-05-15 09:43:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: a0b0c1827512a179d531446fcb37b965 SHA-1: 2e1b65e84f2a10f8c6f4f00049863c94afc6cf77 SHA-256: 5be3d69b87247e9ed2c57a964b972653a8a032eb13e053064a3c0136a599fe36
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector at 'https://netcdn.xyz/app/431946152/freerobux-hack-us-game-hack'. The document body and embedded links suggest a lure for game-related cheats or currency, a common tactic for phishing or malware distribution. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for further exploitation or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/freerobux-hack-us-game-hack In PDF document text
    • http://xenonsvjetla.com/files/2021-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/chisel-and-bits-mod-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-apk-hack-2021-ios_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
stream_003_off000047d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D7 26448 bytes
SHA-256: 4249303c4328a7808aeba1356ef5ee3e4df4240030d88fef8651c6cd36b143cb
font_01_sfnt_off0000842f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842F 18600 bytes
SHA-256: 62478865cf2de8d1447abac5e796ebf67ed8e61bb9aa673ba70a1d199c2393a3

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