Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf72ce8a5bcd50c…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 16:18:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cef2c817f5517cf9e2e7a3b006873d9f SHA-1: 5bfdec7dbcf1f1e107a858419683ca351101d0e8 SHA-256: abf72ce8a5bcd50cb12ff32680b76f1e985eb4f639f2a84dad0fafeca5818b2d
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/can-i-get-free-robux-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/btools-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/pubg-uc-nepal_GM1330123889.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-and-tix-giver_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-hack-without-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/pokemon-go-free-username_GM1094591345.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-easy-mobile_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-twitter_GM406889139.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_off00002fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCB 22440 bytes
SHA-256: 1df4a15d18ef710e40fefba96ebd9dcceae4f9896e9676179d2e39a4be5b5fa8
font_01_sfnt_off000061c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 18820 bytes
SHA-256: 1482418a342ed3f1ed9b37dd8c37f12d98a52023a9223b967d12e27c0c804d73

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