Malicious PDF — malware analysis report

Static analysis result for SHA-256 e62e4de547b404ee…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 09:37:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a247de4f1a5ac8078261c201926f5ab3 SHA-1: 5666d14ccfa6e377ed585aebbba6d2e7f35f8b87 SHA-256: e62e4de547b404ee78b53341798d13f82bbce562dff58febddfc1ea4cac41478
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-links-for-free-spins-2021-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-chaos-washers-hacked_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/get-a-free-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-cheat-theme-park-tycoon-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-apocalypse-rising-spawn-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-hack-roblox-accounts-with-edit-this-cookie-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/dll-script-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/tiktok-free-package-dialog_GM835599320.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-clothes-in-roblox-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_002_off00003265.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3265 22180 bytes
SHA-256: 2408f10948d35ea5e95c1b1f6ff51f1623cff22b135c0743033e26e78f77a5e7
font_01_sfnt_off000063b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B1 18748 bytes
SHA-256: 8d119a4c648bdbcdb702e6b2637ce89b675d402599e3c746c9fba888505a2c80

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