Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d572bf61a18c6c…

MALICIOUS

PDF

44.4 KB Created: 2021-05-19 17:46:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7424e4be373aed423d80e0a6f0d085a4 SHA-1: f4e155018d9317d28010f9e05ad3400826033dce SHA-256: 02d572bf61a18c6cf8bf71e126c19c8f196d36cee39a351c6cd43163a15d3516
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 0.9892

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/431946152/rewardex-robux-game-hack PDF link annotation
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-map_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000046e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46E6 25256 bytes
SHA-256: a36564fe41b1d23c11739cbbc3baae45e422ca008fd9c1ee08d70f8d4640a4bc
font_01_sfnt_off00008122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8122 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD0 18416 bytes
SHA-256: 91cea90fcd43e96c29d32d7d1c05fec8b48306368efea06df772574bb2ca2603

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