Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1f8046a3ad04e0…

MALICIOUS

PDF

50.1 KB Created: 2020-06-07 18:08:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab6c46eb9754257e27d28c2d2bd09420 SHA-1: 4643d85a83c047c41e432922c1cea9a474736445 SHA-256: 2e1f8046a3ad04e076d07357d51f1418ff8cd94f10f342bdfd03bd69150cde60
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating a likely attempt to manipulate search engine results or lure users to phishing pages. The embedded URL and the document body text, though partially garbled, also point towards external link engagement.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • 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://nameplates.ie/uploads/1/3/0/7/130739584/130739584.html#evangelio+ap%25C3%25B3crifo+de+juan
    • http://ipsum-gaming.com/uploads/1/3/1/0/131071066/vuzunavones.pdf
    • http://garyjacksonfarms.com/uploads/1/3/0/3/130313466/5198674.pdf
    • http://ladylatraverse.com/uploads/1/3/1/1/131163991/dowulosujaz-xironidubegud-wepuge.pdf
    • http://weakleycolepc.wc911.com/uploads/1/3/1/6/131606281/fojowanikoseju-joxodef.pdf
    • http://kjacsafetytraining.net/uploads/1/3/0/8/130814562/bb5c1303cd4b9.pdf
    • https://kibufolawof.files.wordpress.com/2020/06/24830220705.pdf
    • https://purekekimol.files.wordpress.com/2020/06/dikubexofuduvenidegijus.pdf
    • https://firizake.files.wordpress.com/2020/06/99537472772.pdf
    • https://zomifuv.files.wordpress.com/2020/06/gejefixepozeled.pdf
    • https://kozaxijewob.files.wordpress.com/2020/06/wudeles.pdf
    • https://vajozix.files.wordpress.com/2020/06/16973052124.pdf
    • https://tefaluvutas.files.wordpress.com/2020/06/51415738725.pdf
    • https://tobodinu.files.wordpress.com/2020/06/sukazetuxuberepo.pdf
    • https://torowusaxi.files.wordpress.com/2020/06/verawefobixivepik.pdf
    • https://nuxiperavef.files.wordpress.com/2020/06/wimejutunufototizes.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_off000090d1.bin
1bcbd71218fc75e326a58d260031535a088ac9c44640d1540d97106abc9b12bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90D1 13348 bytes

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