Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de733664647c479…

MALICIOUS

PDF

35.6 KB Created: 2021-07-04 02:02:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3a078c0b532b01a531943a300cece63b SHA-1: b44ecde9bdf8da336020e817b948cdeaf2f05cbf SHA-256: 7de733664647c4798fc1f0da3e399a515d4fd3b575e6e17023bd5a1327417e45
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-free-link-2021-game-hack PDF link annotation
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/i-think-someone-tried-to-hacked-my-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-hacks-to-hack-any-game_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-money-codes-dor-roblox_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-roblox-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/boku-no-roblox-remastered-cheat-codes_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-redeem-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/master-coin-free-spin-daily_GM406889139.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_off0000348f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x348F 22796 bytes
SHA-256: 90f853a95d554e077586391b616a6daec312ef118349532a653faa3ab073cc79
font_01_sfnt_off000067b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B2 18568 bytes
SHA-256: 5c6f2b8c8950227f34c0c7c762a0319831c5dcbb819f0110f1dbfe9ff8d1e338

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