Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7c0416b7df2d7f…

MALICIOUS

PDF

54.5 KB Created: 2020-06-03 19:26:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: 8ba8b7b1fcb155ce957147655eb5f81e SHA-1: 969b5a488be5b9257bc73e282810bf9e19ad0953 SHA-256: fe7c0416b7df2d7fb52cf6490d091fb649bfa2fba3706f23b866b9db56c0f04a
96 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body mentions a scholarship program, suggesting a lure to entice users to click the embedded links. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, with 'zenithenergylimited.com.au' being a dominant host among them.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://avidaenglish.com/uploads/1/3/0/5/130588640/130588640.html#financial+sumo+educational+scholarship+program PDF link annotation
    • http://zenithenergylimited.com.au/uploads/1/3/0/6/130605440/4912721.pdfIn PDF document text
    • http://cpanel.pinklabelfashion.com/uploads/1/3/0/4/130488265/xenifojalar-tefinuzavew.pdfIn PDF document text
    • http://healthyattitudes.co.uk/uploads/1/3/0/4/130476784/dupojedikezerewotis.pdfIn PDF document text
    • http://kidsvestjacket.com/uploads/1/3/1/3/131398530/tokavogiwitoxixo.pdfIn PDF document text
    • http://octantnavigates.com/uploads/1/3/0/7/130775103/8017199.pdfIn PDF document text
    • http://artsfordementiajapan.net/uploads/1/3/0/3/130379199/losaf.pdfIn PDF document text
    • http://mrshowtimeexpressllc.com/uploads/1/3/1/6/131606778/9104830.pdfIn PDF document text
    • http://tabulavox.com/uploads/1/3/0/5/130590467/vegogimerejiwog.pdfIn PDF document text
    • http://chrislockett.com/uploads/1/3/0/7/130775458/4787315.pdfIn PDF document text
    • http://acarolinanutcracker.org/uploads/1/3/0/3/130313286/xisuvivilagexa_zumivesimowona_walor.pdfIn PDF document text
    • http://intenseaudioandvideo.com/uploads/1/3/0/7/130738661/zizurowe.pdfIn PDF document text
    • http://mta-sts.wasabigreen.com/uploads/1/3/0/5/130551700/50854c498.pdfIn PDF document text
    • http://avidaenglish.com/uploads/1/3/0/5/130588640/terms.htmlIn PDF document text
    • http://avidaenglish.com/uploads/1/3/0/5/130588640/dmca.htmlIn PDF document text
    • http://avidaenglish.com/uploads/1/3/0/5/130588640/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://zeraperusute.files.wordpress.com/2020/05/81363197242.pdfIn PDF document text
    • https://samomewirasa.files.wordpress.com/2020/06/15566387087.pdfIn PDF document text
    • https://pakikedew.files.wordpress.com/2020/06/50591216277.pdfIn PDF document text
    • https://valisapopal.files.wordpress.com/2020/06/67027965211.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: zenithenergylimited.com.au 4 samples

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA913 10740 bytes
SHA-256: 1e4556b92422f0f3bf7d3ba9cbdddb5ca159059610688effb48035d9ef9cb21d

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