Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eeef016702f5161…

MALICIOUS

PDF

46.9 KB Created: 2021-06-08 16:07:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9f2d160ba79f41fa823fc99636ce2c78 SHA-1: 09e98b606b642e426dcb71af5ca1da5a3f8f7f6e SHA-256: 9eeef016702f5161e1a7cbf61fab0e06a118d6bbec564f880bcd3c2a132afc81
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 0.9832

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 https://netcdn.tw/app/431946152/how-to-get-anything-on-catalog-for-free-roblox-game-hack PDF link annotation
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/instant-robux-free_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-free-robux-hack-com_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/promo-codes-for-free-stuff-roblox-2021_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-robux-hack-exe_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-hacks-and-cheats-and-keygen_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-fre-fsp_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-in-your-group_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-robux-calc-and-spin-wheel_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-apk-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/factory-simulator-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-hack-people-on-roblox-easy-2021_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
stream_004_off000055ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55CE 26176 bytes
SHA-256: 08dbd4ab845ae61c26223b1437d420da273927241489c14e4f1b4025b266355a
font_01_sfnt_off0000920f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x920F 19200 bytes
SHA-256: d406f52407d44dd189d054d05629b479592dcaa41851b5d034494a90532f9da1

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