Malicious PDF — malware analysis report

Static analysis result for SHA-256 10a2eecd002efba9…

MALICIOUS

PDF

36.9 KB Created: 2021-07-03 12:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 06165a79b10b26471c3c1f4b8dad3cdf SHA-1: ecbe3503b77a8c46e1a0cfba1440422b6ef55aa8 SHA-256: 10a2eecd002efba9f3c0caf47e8c3d41daeb8013db44f3197845765b14247637
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and embedded URLs reinforce this lure by referencing 'free spin link coin master' and similar game-related cheats. The ML classifier also strongly flagged this PDF as malicious, indicating a high likelihood of a malicious payload or phishing attempt behind the lure.

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-spin-link-coin-master-today-game-hack PDF link annotation
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-getter_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/hacks-cbro-roblox_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-robux-without-human_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/roblox-best-free-exploit-march-2021_GM431946152.pdfIn PDF document text
    • http://web.smkn1indramayu.sch.id/e-lib/repository/roblox-inappropriate-games_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_off000037ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37EE 23212 bytes
SHA-256: 58dc677b9b9a4d709848fd5e62a7b65fd12c807e489f4430152b4a09812f1e70
font_01_sfnt_off00006c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C42 18696 bytes
SHA-256: 31881190b33b808cb817da8829c891faee4b93e4bfb09ae76d7fe90b75b9481b

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