Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd967054999ed102…

MALICIOUS

PDF

47.3 KB Created: 2021-06-03 15:24:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0cf43a543c13f5dfeefa913793d6dbbc SHA-1: 89bf6ccfe2619dfdd7ee8a8ee4b9be5f4f079762 SHA-256: dd967054999ed102e72571730468cb0543af46fd70d089e8b3beeae39fc9b8ed
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 0.9769

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.online/app/406889139/hack-coin-master-game-apk-download-game-hack PDF link annotation
    • https://www.jcn.co.uk/uploads/files/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/pubg-4-uccom_GM1330123889.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/rbx-free_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-games-like-minecraft_GM479516143.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_004_off00004fb7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FB7 25512 bytes
SHA-256: 8c16ccedf7aa1fd4857338c674a22bbebc52a717be71c1acfbc871d4ace0f120
font_01_sfnt_off00008b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0E 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000094bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94BF 18732 bytes
SHA-256: 4ebed6c5917eda7f6a467b80cf1b151ee52591b50f9ea0fed8e534379f201ae7

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