Malicious PDF — malware analysis report

Static analysis result for SHA-256 faaf3d386ca69e29…

MALICIOUS

PDF

30.5 KB Created: 2020-05-15 21:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48e9493d71c49ce1909fbec80628d8a5 SHA-1: 601f3ee99b0d73a8874252bf7663642c9d408ee8 SHA-256: faaf3d386ca69e29bd89560ddca08499e93322488bc37d482f5e1c6faadd8a65
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The presence of a 'Download Button' lure further supports the malicious intent of directing users to external content. No scripts were extracted from this sample, and the document body contains obfuscated text and URLs.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vote4mollie.com/uploads/1/3/0/4/130435684/130435684.html#7up+album+songs++starmusiq
    • http://circleofserendipity.net/uploads/1/3/0/6/130639145/8b14342c336e4.pdf
    • http://chartoularios.eu/uploads/1/3/0/7/130775309/7566688.pdf
    • http://fromblocktorock.com/uploads/1/3/1/1/131163981/8305323.pdf
    • http://twisted-chicks.com/uploads/1/3/1/3/131380345/8731721.pdf
    • http://cdtaleadership.com/uploads/1/3/1/4/131453335/xogoz_xitamaz_sosopape.pdf
    • http://qualitypestproducts.net/uploads/1/3/0/9/130969260/zoxow-wetepa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d36.bin
bcacf87acda958e83f14089e52d5566148ab424356437707f7e46d9491457a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D36 10072 bytes

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