Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d30a04726c30d95…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 13:09:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: a5817e0e407e4ba2eb9390566cf909bd SHA-1: f2e1e9eae5a8b5888c0bcfaf37b300aaf9c61864 SHA-256: 0d30a04726c30d95e1e5443c8a7c56776297ed86fde737c554e71d7178231b43
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to harvest credentials or deliver further malware. No scripts were extracted, but the presence of multiple malicious redirector links is a high-confidence indicator of malicious intent.

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/roblox-games-com-free-game-hack In PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-ios-hack-no-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/cheat-engine-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/tiktok-free-folowers-free_GM835599320.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-snyapse-free_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/roblox-mobile-app-free-download_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/rbx-claim_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/free-robux-easy-robux-today_GM431946152.pdfIn PDF document text
    • http://pustaka.stikesperintis.ac.id/repository/get-free-cards-in-coin-master_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
font_00_sfnt_off00002ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED6 22360 bytes
SHA-256: d564cbe831cf4704f8b255104164927221845e666eaf4dfc67ba7c2fbe562b12
font_01_sfnt_off000060b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B3 18908 bytes
SHA-256: 63fcf197efd0ab2731d200d540b33a8cc2102b08d529c7d5467440d1b6216513

Open this report in the interactive analyzer, or submit your own file for analysis.