Malicious PDF — malware analysis report

Static analysis result for SHA-256 208b6265e495d131…

MALICIOUS

PDF

35.7 KB Created: 2021-07-05 02:43:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1e27108a2562ba3995ba3d0fa7a356c1 SHA-1: 08e0556c3fe3c1c581618ed019828e50d59bfcd7 SHA-256: 208b6265e495d131d9cd1b2bbb9455a6b1b19ec353307b79b1498ecb304c51a5
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-coins-and-spins-in-coin-master-game-hack PDF link annotation
    • http://perpus.iainkediri.ac.id/pasca/repository/email-roblox-about-hacked-account_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-hack-a-roblox-server-2021_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-exploit-dolphin-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/www-bloxyworld-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-colouring-pages-free-girl_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/robux-win_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-free-printables-part_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/april-2021-hackings-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/level-7-lua-executor-free-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-transformer-roblox-costumes_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/cheat-codes-for-aquaman-roblox-promo_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_002_off00003439.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3439 23356 bytes
SHA-256: f99b2a1f429cc2e52d5feeec57e0c5bcc5fea542cfdecfe6d3f2874be1113288
font_01_sfnt_off000068f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F3 18348 bytes
SHA-256: 3394dff2a2236ff5ebd01f8571ec2988f1167f0416feeddb65e6ed7fa563ded8

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