Malicious PDF — malware analysis report

Static analysis result for SHA-256 c62e0f6f2fbcf9cc…

MALICIOUS

PDF

46.9 KB Created: 2021-05-13 20:47:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bdeb03765974d472c77f5168f56eaa52 SHA-1: 4de4eec3b74111741f208ede82fcb4e9a9a4e262 SHA-256: c62e0f6f2fbcf9cc54eaf61e9700bbcccb0920b0273ecefbb7f8a102f855d36e
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 0.8948

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/websites-that-give-free-robux-game-hack PDF link annotation
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coins-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/unlimited-free-spins-coin-master_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_003_off00004c8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8E 25896 bytes
SHA-256: 625dcf6a981188e3320ceaab55317184ed373a45033160bd56e7634d93d8692f
font_01_sfnt_off0000890d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000092bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92BF 18944 bytes
SHA-256: 78a0fcf68a5d31112d03f33f6a87e59a8dd4ec5e5d54fb5213929ff381de215f

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