Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e7ca1bd065a1ad8…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 11:24:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 842fe9d61734901a4b67585783c557f5 SHA-1: 94636a260f9340da86970bd27cc49d6c57e884c9 SHA-256: 4e7ca1bd065a1ad8e0082f9974b518d3860f1f82e3273bca952fbdd6e5cf44fe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to entice users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or exploits. The document's content and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/how-to-hack-a-roblox-account-2021-game-hack In PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-delitive-mod-cheat-codes_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/pubg-uc-whatsapp-group_GM1330123889.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/lacify-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-hack-commercial_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-ultimate-driving-trucker-money-hack_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-in-ipad_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B50 22396 bytes
SHA-256: 8569424c83117c335b3d28e7dab3d11921d3cf760102519d650271116c2fb389
font_01_sfnt_off00005d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3B 19468 bytes
SHA-256: 8490c018c81cc22f14dab8ddf5d074d9e4c4287532f70e565512aa2c5e2164f3

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