PDF static analysis report

Static analysis result for SHA-256 5a869ca7def9aca4…

SUSPICIOUS

PDF

32.1 KB Created: 2021-07-19 13:31:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 554310d31a90e7a17915161de589fc7e SHA-1: cc0c101bc3d1be84da4b86305b261f9fe64ed08e SHA-256: 5a869ca7def9aca4c9632b5b377cb5e733e215c1e57fe43ecb40c92d54119996
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The primary URL, http://netcdn.tw/app/431946152/free-robux-master-game-hack, is presented as a 'Free Robux Master' generator, a common lure for tricking users into downloading malware or providing personal information. While no scripts were explicitly extracted, the ML classifier flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 3

  • 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 http://netcdn.tw/app/431946152/free-robux-master-game-hack PDF link annotation
    • http://acp-institut.fr/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://acp-institut.fr/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://acp-institut.fr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://acp-institut.fr/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://acp-institut.fr/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://acp-institut.fr/images/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • http://acp-institut.fr/images/free-ways-to-get-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B55 21324 bytes
SHA-256: 76773ee9ce151cdb3c87fe5a966d4281aed931781209b7decb29ab04273d1cbd
font_01_sfnt_off000059f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F5 18728 bytes
SHA-256: c36130a063a45563017e09323de84a52060dcd5c611ba01078cf3d59063abc1c

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