Malicious PDF — malware analysis report

Static analysis result for SHA-256 00872106b5f69fb5…

MALICIOUS

PDF

33.1 KB Created: 2021-07-05 14:05:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8a7d269dcfb37f0ec3331be3abd32999 SHA-1: 121f9ee8b017dea117a099989aaa73647638ea48 SHA-256: 00872106b5f69fb5ef0570f564462784fcbca0e909fcb98bb6e4ad5ecef4b3dd
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/479516143/minecraft-free-android-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/hack-roblox-passwords-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/hack-into-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/como-conseguir-robux-gratis-sin-hacks-con-dos-links_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/descargar-natevangisapotato-stella-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hacke-auf-spaghetti_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/tiktok-free-prints_GM835599320.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-alcutally-works_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/fearless-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-easy-and-fast-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-hack-no-download-games_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/a-hack-to-ban-people-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-para-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-without-installing-anything_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_off00002fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB5 21588 bytes
SHA-256: f80d37c4061a494812dc9492427fda5b21d917566c24dc10fde96dba1937a31d
font_01_sfnt_off00005eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEF 18172 bytes
SHA-256: 76a46b6ffa672d4629705b025ed1d2900a12de91bcde6df1b9c7209dc48d6afd

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