Malicious PDF — malware analysis report

Static analysis result for SHA-256 baad0e50965a80d3…

MALICIOUS

PDF

38.1 KB Created: 2021-06-29 02:53:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7a500d38e9504e146a2bfc642de6af56 SHA-1: ec492c21882ab2abd52d15a7d234f733d65faa32 SHA-256: baad0e50965a80d35f45af18b4f13d10d7b0b5ab398a08e9682f162162e2f430
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector pointing to game hack content. The document body and embedded URLs suggest a lure for free game items or cheats, likely leading to a malicious download or phishing site. No scripts were extracted, but the PDF structure and embedded links indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/roblox-town-factory-cheats-game-hack In PDF document text
    • http://library.ulb.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/pubg-uc-image_GM1330123889.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-hacking-code_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-generator-no-human-survey_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/can-u-create-dress-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-pets-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-hack-in-robux-no-pastebin_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-cheat-in-leavels-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-cheats-no-download_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-studio-are-datasotres-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-evite-ban-roblox-hack_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_off00003d90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D90 22440 bytes
SHA-256: 4ebcde574e25d942d40f9be34219b82aadc0f30f9ff98b670c768171a775fdc0
font_01_sfnt_off00006f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F96 19264 bytes
SHA-256: 767fcddb2ebca679e733b5ed1593fb42f327a3dbd252cfce93549e7c18fe34dc