Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2149f122f3a3075…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 05:38:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 12b07f13d552add02bb84b0af4cb3b52 SHA-1: 4819caeeae59de81258ed3f5ccd7ecae3b478daa SHA-256: f2149f122f3a3075a196af45626ca0e2193d2bf669c8d2ea4a7652d98cf5416a
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1534 Internal Spearphishing

This PDF file contains multiple links to known malicious redirectors and impersonates the Chase brand in a credential phishing lure. The primary link, https://netcdn.online/app/431946152/roblox-free-body-game-hack, is presented as a 'free generator / game hack' and is likely intended to deceive users into clicking it. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to deliver a malicious payload or harvest credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/431946152/roblox-free-body-game-hack.
  • 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 https://netcdn.online/app/431946152/roblox-free-body-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-items_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-promo-codes-2021-no-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-generator-2021_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
stream_004_off0000547d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x547D 24376 bytes
SHA-256: 41b096a58f31fa227e407e5e4018eafa896a3f676c283685192c00c150ca5567
font_01_sfnt_off00008c25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C25 18300 bytes
SHA-256: 18afd95e8d4f71f33520678a0de9ae8deb20909ba5c2eba22890e369374f989b

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