Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0270af97f3aad9…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 04:20:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 98558e1899382b0876e955ea9fc5d858 SHA-1: c5b97c6a8639713eeb76229e3aaa9b4cd95a9089 SHA-256: 3e0270af97f3aad9024d8376d5be8575d47facbc3cd8646c7b6a39b3e5832576
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a free generator or game hack. The primary link redirects to a known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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.tw/app/431946152/free-roblox-cards-pin-number-game-hack In PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/how-to-hack-your-old-roblox-account_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/grab-points-login_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/pubg-uc-digi_GM1330123889.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/top-hat-roblox-free_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/free-tiktok-engagement_GM835599320.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/roblox-hack-scripts-for-jailbreak_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/youtube-how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/roblox-how-to-get-a-free-vip-server_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/can-u-hack-roblox-with-lucky-patcher_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/pubg-uc-app-download_GM1330123889.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/websites-that-give-you-free-robux_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_off000030ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AB 22980 bytes
SHA-256: ecca34abb125ae6fddf93d5933536f1a4380e85e9a86d52c7a399d9571823990
font_01_sfnt_off00006489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6489 19496 bytes
SHA-256: 26f8022740b31f99ec8af4f9d7e2e33f89028674163afa5eede3c1b77efbd679

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