Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea31adc4b6229f2…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 06:59:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3fbec2ef3ea0243fd2b29cca3ba2d136 SHA-1: 6a2d085714550f82e98df52827572055c30d7f5f SHA-256: 0ea31adc4b6229f263b5d10248afb52db9fd7665e8c37d376afe7be59ca20945
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to a known malicious infrastructure, likely to lure users into downloading further malware or engaging in scams. The document body and heuristics indicate a lure related to game hacks and free in-game currency, suggesting a phishing or scamming attempt. No scripts were extracted, but the presence of malicious redirectors and the lure content strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.co/app/431946152/roblox-phone-hack-game-hack In PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-character-boy-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/hack-roblox-users-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-boost_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-free-c_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_off0000309c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309C 22480 bytes
SHA-256: 93c2664aa8e312b29f8eab316954539714cafdf4698536aefb6cdc9f1a8bb1a7
font_01_sfnt_off000062be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BE 18976 bytes
SHA-256: 6d205497acb945a39cadacc396375684b42375d1aa514bb6e8ca9f0535836e4f

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