Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dbd5549a11cda94…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 20:45:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e63c1762b81894a0a651953948ec6f6a SHA-1: 8a4b2f7d322bc7020f7720997aa4ee51e31426d1 SHA-256: 3dbd5549a11cda941e476589887b94668d86f0dd56b8660b5e7767354803532b
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/how-can-i-get-free-robux-game-hack PDF link annotation
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-free-gears-hat-faces-clothes-2_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-how-to-hack-admin-on-any-game_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-all-free-stuff_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/gana-500m-de-robux-con-este-hack-2021-100-real_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-free-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-hack-into-roblox-accounta_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_off0000324b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324B 21672 bytes
SHA-256: 797d57ce3da621122d4b8db39e421dedcc679171a895e848938c3dd1ae8d79cc
font_01_sfnt_off000061ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BA 18984 bytes
SHA-256: 88d69eb3e5aacbb9415b7e9d5cab519469ee3fdfdf18acc61836835876a3bab2

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