Malicious PDF — malware analysis report

Static analysis result for SHA-256 b26eed78c6e67cfe…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 14:50:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f3e4e71d11f97d3d6bd5f8ddab23c78e SHA-1: d4d86bf8a194c63cd5e4b37c7c8094c01de7f29b SHA-256: b26eed78c6e67cfe6a477064da1ea6bb8329df1580317e806050a54edc5f08d0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/free-spins-coin-master-android-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/hack-in-roblox-rc7_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-stop-animation-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-vehicle-simulator-money-miles-hack-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-mining-sim-hack-pastebni-december-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-gift-card-free-codes-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-roblox-no-downloads-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-faces-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/best-roblox-games-to-hack-in_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/fre-click-tp-roblox-script_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/comment-hacker-roblox-facilement-sur-pc-2021-en-francais_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-15-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-minecraft-for-free-on-android_GM479516143.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_off00002ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF8 22516 bytes
SHA-256: 2368522a7e3f1bdf5251c9d674290f27b4ba7d83c30f878ddc6e4a4c84c096fe
font_01_sfnt_off000061f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F6 18348 bytes
SHA-256: 5f09792028422a0f3da80369e6b79e1943eb381c954ddc120ae65d5118bfcfa1

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