Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3079a46b6f5b61…

MALICIOUS

PDF

44.6 KB Created: 2021-05-17 07:07:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7c7955289e965010b51dfacdc0de2974 SHA-1: 28ef69d8d4521dfdbc7c758add5e234c8906dd55 SHA-256: ce3079a46b6f5b61fc9f4a4ba306e2ba75415924fffd58434d1c2bf05c0823e0
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 0.9632

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 https://netcdn.xyz/app/406889139/coin-master-spin-link-free-game-hack PDF link annotation
    • http://m-sv.net/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/hack-avatar_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-items_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000485e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485E 25068 bytes
SHA-256: 5f5b799370496aa32b87f39ad1f5347cffbc99f4cf94b0db1debac65128a03a8
font_01_sfnt_off00008188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8188 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00008c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C66 18056 bytes
SHA-256: bee5a9cff4eb0812c8f57e0175ace783495889a774d5691716bc6e23f3d4a072

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