Malicious PDF — malware analysis report

Static analysis result for SHA-256 35cdb68126a8e6a5…

MALICIOUS

PDF

32.0 KB Created: 2021-07-20 03:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fba1fe8f5049f11fcc9a881ae3788425 SHA-1: 863245d11f797299a276995604a480d74ad6f3a5 SHA-256: 35cdb68126a8e6a54b3fc1e35385526ad75f7b068295e77020dff344d0abb143
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs pointing to websites offering free game currency or social media followers, likely as a lure. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button heuristic further supports a malicious intent. The document's content and structure suggest it is designed to trick users into visiting these sites, which could lead to credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/835599320/free-tiktok-fans-no-verification-game-hack PDF link annotation
    • http://118.174.0.244/UserFiles/File/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/robux-free-c_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-spins-for-coin-master-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADE 22328 bytes
SHA-256: 0e8f791cc8dbc6367a91304472ecc8ab380a303bfa52388b3148dd299e50b414
font_01_sfnt_off00005c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C53 17816 bytes
SHA-256: db30cff21771a834018d301e3e15668d4f696dd14c251b75c79f93eed26cd5f9

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