Malicious PDF — malware analysis report

Static analysis result for SHA-256 093b2b4dff347a8e…

MALICIOUS

PDF

35.9 KB Created: 2021-07-09 03:13:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a25629b0ad4c2680aea873891493ea5b SHA-1: af0f888cbc469c641ce62df9ee55a74f01dd0780 SHA-256: 093b2b4dff347a8ec841d13cbbfc0f3d7b5090bb56f235e5b0e423e9a721cd7b
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/431946152/old-roblox-accounts-for-free-game-hack PDF link annotation
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/juegos-para-hackear-en-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/best-roblox-game-to-hack-on_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/cheat-codes-vhicule-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/_GM479516143.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/roblox-free-vip-t-shirt_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-robux-command_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-subscribe_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/download-phantom-forces-roblox-aimbot-hack-script-2021_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/roblox-obby-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-a-phone_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/100-free-roblox-templates_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-robux-scripts-2021_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • https://elearning.alhurriyah1.sch.id/__statics/gudangsoal/files/cm-spins_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_off0000338b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x338B 22844 bytes
SHA-256: 2dd128eb3aeafcf5c9e3f714fbfdcea35c3063a6c1bac7f04de7ef34e4436893
font_01_sfnt_off0000670f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670F 19068 bytes
SHA-256: f5f13600f2f438e5ce12c91dd09359bed6a89aadbe705308ce4f0d1f141ce3b5

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