Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f032cb39f873f86…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 09:19:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4acc5765c14876f70c6c50e1ec734f21 SHA-1: 4bb94b8943249247e60bed2a28e9331f7b03c874 SHA-256: 2f032cb39f873f86295b7d3e92de1789933f8ba3339272ffcb9cbe5f063ac41a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/431946152/hack-dragon-ball-rage-for-roblox-danload-game-hack. This URL is presented as a lure for game hacks and generators, indicating a social engineering tactic to trick users into visiting a potentially harmful site. The presence of numerous similar URLs suggests a broad phishing or malware distribution campaign.

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/hack-dragon-ball-rage-for-roblox-danload-game-hack In PDF document text
    • http://library.stieyapan.ac.id/repository/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/hack-vehicle-simulator-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-ninja-legends-cheat_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-mster-free_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-piano-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_off000030d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D9 21640 bytes
SHA-256: f663c2c7011c89e346b42cee396cda57a13d7f58ee4d5eb522912e28ca883a2f
font_01_sfnt_off0000608f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608F 18976 bytes
SHA-256: 383396763cc448dc8c8b6b9fddf3938507bf4c493ff556990a9cfa910d7311d8

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