Malicious PDF — malware analysis report

Static analysis result for SHA-256 54d1d51861d08844…

MALICIOUS

PDF

35.7 KB Created: 2021-07-05 03:16:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9ab759434ea0413bb027930d11dd42c9 SHA-1: 9a0bae6dde6c431e59c47d87f239900510b2e121 SHA-256: 54d1d51861d088446f471fa03279997192f95d7517cf97738c705a454412fb71
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://www.ma-plast.hr/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/hack-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-project-jojo-white-snake-free_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-free-wings-code_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-cheat-codes-for-rocitizens_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
font_00_sfnt_off00003467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3467 22708 bytes
SHA-256: 8158aa2102e30738a5585ad39045c6834a2485ba6e82027d04a5b85dbc282df3
font_01_sfnt_off00006755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6755 18748 bytes
SHA-256: 8d119a4c648bdbcdb702e6b2637ce89b675d402599e3c746c9fba888505a2c80

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