Malicious PDF — malware analysis report

Static analysis result for SHA-256 e75fc21e539746af…

MALICIOUS

PDF

44.1 KB Created: 2021-05-18 02:00:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cf38ab6ed3b5d02391e58a5307395a7d SHA-1: 1a3d7fdb252e9f5357a859189acb09d250d01401 SHA-256: e75fc21e539746af676653c731d86646eb0bd92ddedcf3b739c4f942b182f4ef
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 0.9976

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-blogspot-game-hack PDF link annotation
    • https://www.anders-sofa.com.tw/uploadpic/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/fb-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/clients-minecraft_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e2d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E2D 25748 bytes
SHA-256: f5b97f1d6496b8db518fabcb0ac41abc250cb13252d17a065ac78be0259699e7
font_01_sfnt_off00008a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0A 18300 bytes
SHA-256: da6108506d645fcbe3414e0c69cdcf67670a59a1c8ef58446631e8e12bd9067e

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