Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb36f7cd9d4d3d9c…

MALICIOUS

PDF

36.8 KB Created: 2021-07-01 14:13:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 3832647a3b3710217004c51c8bb533f0 SHA-1: 910acf8e67bcde77764d43d4d9bb22fb52bdc932 SHA-256: eb36f7cd9d4d3d9c8126d4d296a55129bc8f4b7f8232d76e4a8d765b8ac35988
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The document body and embedded links strongly suggest a social engineering attempt to trick users into visiting these malicious sites, which likely serve as a gateway to further malicious activity such as malware downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/infinte-moneuz-roblox-injector-hack-game-hack In PDF document text
    • http://library.atim.ac.id/repository/roblox-shard-seekers-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-cheat-in-guess-the-song-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/pubg-uc-bc-com_GM1330123889.pdfIn PDF document text
    • http://library.atim.ac.id/repository/youtube-robux-hack-html_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-and-know-what-people-are-inmm2-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-make-an-account-on-roblox-laptop-for-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/luis1-coment-robux-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/play-roblox-bloxburg-for-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-hack-ultimate-pro_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-andriod_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/tiktok-free-watermark_GM835599320.pdfIn PDF document text
    • http://library.atim.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-hack-computer-no-app-download-computer_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-poke-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/real-robux-hack-pastebin_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_off0000333f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333F 24292 bytes
SHA-256: f13d8483db64470d5d79e66d27df8e62a8bb311e9d926a472e432d85852de938
font_01_sfnt_off00006995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6995 19488 bytes
SHA-256: e036bee80d0c857819a314ec475b2f65a177004f9b01c255c4c68fb833679445

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