Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebedb832b7ccfb8…

MALICIOUS

PDF

34.4 KB Created: 2020-04-02 05:11:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bc1e5242bc63d2398c15f8ddf70bbbf9 SHA-1: 6aae05137859ef4bb8c83176d62c8283813670a2 SHA-256: eebedb832b7ccfb8c94b9a2067ba5d361db8ca6a7c4bd5837193dba02792a41b
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating a likely attempt to manipulate search engine results or distribute content across multiple domains. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link redirection.

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://qadomaintesting-04-19.com/uploads/1/3/1/4/131406036/131406036.html#majestic+fireplace+model+mbu36i
    • http://wwww.jelleleistra.nl/uploads/1/3/0/8/130874681/6781804.pdf
    • http://scentneutrality.com/uploads/1/3/0/9/130969553/zadiduwime.pdf
    • http://essentialoil-education.com/uploads/1/3/1/3/131379699/9a80430aba19a3.pdf
    • http://jodiedolls.com/uploads/1/3/0/3/130324315/suvuzodo_koremomixi.pdf
    • http://beeronlyfast.com/uploads/1/3/0/5/130589019/96294198c9cd9.pdf
    • http://emmausroadpegs.com/uploads/1/3/0/7/130776277/8dcf8c987b.pdf
    • http://rentingcentraloregon.com/uploads/1/3/1/4/131453555/kifarad_baguxivoge_zojasukovawo_rovasigasobor.pdf
    • http://wadsworthupward.com/uploads/1/3/0/7/130776428/77c7ec939c8ef5.pdf
    • http://ecosoccdiaspora.org/uploads/1/3/0/6/130604771/ruzuwixatawekuzeb.pdf
    • http://kimberlifreilinger.com/uploads/1/3/0/5/130588876/fitisupapewolaxo.pdf
    • http://jgholbrookdesign.com/uploads/1/3/0/5/130538925/tutozujuwunij.pdf
    • http://erikhansenart.com/uploads/1/3/0/7/130775655/ravewomivisusakape.pdf
    • http://aufuturclothing.com/uploads/1/3/0/4/130483819/6384850.pdf
    • http://leafit2me.net/uploads/1/3/0/6/130620670/7067676.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_off00005ca8.bin
501edd7898324095ce7d4f2d7fb978f25632f3c2f831d54d770a9db0e8429d5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA8 8276 bytes

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