Malicious PDF — malware analysis report

Static analysis result for SHA-256 f79897bbeea1ee00…

MALICIOUS

PDF

37.7 KB Created: 2020-04-15 13:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 058c913bd517f7aaf553dba8af7626b1 SHA-1: c359fee5f8c074f14fc0a0c7c0d4830165effe1d SHA-256: f79897bbeea1ee005271ba9885cc421fc518f57f311dc428c4be5a65555e6c45
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDFs hosted on similar domains. This behavior is indicative of a link farm or SEO scam. The document body, though heavily obfuscated, contains text related to a 'Nielsen music report' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious nature of the links. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://brianedwardofficial.com/uploads/1/3/1/3/131380138/131380138.html#nielsen+music+report
    • http://chrisjcampbell.net/uploads/1/3/0/6/130604541/a2d4fb99c0.pdf
    • http://caninesplashzone.com/uploads/1/3/0/4/130483219/zuzesidukeloje.pdf
    • http://synywaterdamage.com/uploads/1/3/0/5/130541028/5275038.pdf
    • http://healymirkovich.com/uploads/1/3/0/5/130589308/buxidezomaw.pdf
    • http://moorerepairs.com/uploads/1/3/0/9/130969682/9481f1cecaa1007.pdf
    • http://soniassuppers.com/uploads/1/3/0/2/130287883/fitosoziziwija.pdf
    • http://immobranding.be/uploads/1/3/0/7/130739646/6891119.pdf
    • http://thesaddlersapprentice.com/uploads/1/3/0/7/130739164/6461366.pdf
    • http://kinesiologie74.fr/uploads/1/3/1/0/131070374/lurovesipulasi_wuvomoza_dadimipobebego.pdf
    • http://thomasschow.com/uploads/1/3/1/1/131164557/gawunidiwex-zalito.pdf
    • http://remnantsbarbersho.org/uploads/1/3/0/6/130621854/50c5e8f.pdf
    • http://buttemtnews.com/uploads/1/3/1/4/131452950/nigitewenexit_sojibofetiwowe_dubozu_gufetafuxa.pdf
    • http://mycafemath.com/uploads/1/3/1/4/131407214/b1e6a.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_off000068a9.bin
1a29cbe37592803bf802604f812cfb21a1e33925ac9605fee56b054dc708001d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68A9 8632 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.