Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd0719f27cc3f29…

MALICIOUS

PDF

46.9 KB Created: 2021-05-10 17:30:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f3fe196404e6a95eeeda5531bbe1d40b SHA-1: a2ac4f43dc8b8007a52762c8b1be4fa216900169 SHA-256: 5dd0719f27cc3f29308c9d3af6f4547df9d5206ec9b6b07e8c80611bae7c224a
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 0.8958

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/free-roblox-accounts-with-robux-that-work-not-banned-game-hack PDF link annotation
    • http://srisaket.nfe.go.th/UserFiles/File/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/free-robux-images_GM431946152.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-box_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
    • http://srisaket.nfe.go.th/UserFiles/File/coin-master-free-spins-and-coins-link-today_GM406889139.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_off0000482d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x482D 27340 bytes
SHA-256: 6ddbf4c9cf7314d58b1d8f43a92f7a189a16c9f292f5d27e26fff29005cc9c3f
font_01_sfnt_off000085a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A0 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9248 19248 bytes
SHA-256: efa3c9b2c8f55d2ce8a78f8ae751aa117ac14b1934403b15023fd1527a527783

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