Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46b00b0974c4ca2…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 01:41:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1dd638b3d1e5dc0fa95595fa8b6f5476 SHA-1: a90b314f9fc4a643e2449f323cf93625f0a20074 SHA-256: c46b00b0974c4ca23af8d55193f20dd7c5d110ef7a52bea93c85a60362113d66
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/how-can-i-get-free-coinsn-coin-master-game-hack PDF link annotation
    • http://perpus.smkn1pemangkat.sch.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/how-to-get-free-robux-without-email_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_off000030b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B2 22816 bytes
SHA-256: 1e97f345352b785f38f35de7a0699d5da53e8a4cc3d12c21247c27c2a5cb866d
font_01_sfnt_off000063c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C7 18164 bytes
SHA-256: fa47a7a0c7c4ec8ea8fe3afb2e8d91ccfaa7851461a3b0a3b74041f8effbb9c2

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