Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c05a809580b5137…

MALICIOUS

PDF

45.7 KB Created: 2021-05-12 18:31:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3aead493267c074d378a5e5ccdab6b54 SHA-1: 6648977f20432f0e80c8726eacedbe620cef7b93 SHA-256: 9c05a809580b5137c8e3ef8049313a720990010856a94dc7b3fe907794516cf7
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 0.9507

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 https://netcdn.xyz/app/406889139/get-free-spins-on-coin-master-game-hack PDF link annotation
    • https://pa-waingapu.go.id/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/rbx-website_GM431946152.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/daily-spin_GM406889139.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/free-robux-codes-no-verification_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ca9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CA9 24600 bytes
SHA-256: e874c5fda0e441325d64420491bd53ec92cca9f5d0a9fb980b493c5276a6f2e1
font_01_sfnt_off000084c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C8 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off0000914d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914D 17884 bytes
SHA-256: 200850e3a78b1b50c9881a74b6d24eace04c65468f288c9b2f31b5952499e453

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