Malicious PDF — malware analysis report

Static analysis result for SHA-256 730526f2a57cfeaf…

MALICIOUS

PDF

35.7 KB Created: 2021-07-05 22:40:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 09bce2d78e5c830e56f9d59f327ed77d SHA-1: 863975b12d9846f44d1379d51f87206f516ef217 SHA-256: 730526f2a57cfeaff65c750d3e048e201c6dbc0558b2ab6e238a1717060ef0f1
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/coin-master-hack-pro-gamers-com-game-hack PDF link annotation
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-gift-ard-pin-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-games-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-build-a-boat-for-treasure-hack-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-pc-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/pastebin-robux-hacks-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/tiktok-free-64-bit_GM835599320.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/unlimited-jump-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/pokemon-go-free-apk-download_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/op-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/hack-esp-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/real-free-robux-websites_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-get-free-robux-2021-on-android_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/ingame-free-rubux-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/where-can-you-get-free-robux_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_off000033c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C6 23340 bytes
SHA-256: 1e32c983b69857c7d1c83cc2fec1861f96a338c08b2ea24d379f2f6f45c473dd
font_01_sfnt_off0000688c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688C 18416 bytes
SHA-256: 42eb204123647df6f85ca188dd99f1d84b9bafa3d0fb5c7709fcc50fb0944608

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