Malicious PDF — malware analysis report

Static analysis result for SHA-256 5694e72125bc19cd…

MALICIOUS

PDF

45.3 KB Created: 2021-06-04 00:58:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 22139ae764a520597ee16f9dd56d3c29 SHA-1: fe71a9ae59d349ea78d4abe6677288180c723daf SHA-256: 5694e72125bc19cdd5861aede8d5d86e7d9dcbda4b81bd2a829946568d5c122b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that redirect to known malicious infrastructure, specifically promoting game hacks and free currency generators. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering lure designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/406889139/how-to-gain-more-spins-on-coin-master-for-free-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-free-spins-link-today-blogspot_GM406889139.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_off00004d1f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D1F 30084 bytes
SHA-256: 26669545aadbe16f5f7b36585f61a725b96cc5a153bb05d33a5908dbf7080d73
font_01_sfnt_off00008f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F57 18052 bytes
SHA-256: 2b6154c27660532d98da4aa74bd690eac4d1a1d381f6590d3335daf198931aa6

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