Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3e9db5930edfea…

MALICIOUS

PDF

38.0 KB Created: 2020-06-04 20:04:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: ace0600a34e481f4821281e8a4dbeff7 SHA-1: f72ada75e0efa265071c5e270bdd347e0b84ea15 SHA-256: ce3e9db5930edfeae361310699d9ebc620f3b59930cedb95bb4d75e434b2137b
104 Risk Score

Malware Insights

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

The PDF document contains text and embedded links that mimic a parcel delivery notification, a common lure for phishing or malware delivery. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, many of which are hosted on suspicious domains and follow a pattern suggestive of SEO spam or a link farm designed to host malicious content. The SE_INVOICE_LURE heuristic further supports the phishing pretext. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://mta40.somekindofsimple.com/uploads/1/3/0/6/130621267/130621267.html#parcel+data+received+shipment+in+rou PDF link annotation
    • http://halverstam.com/uploads/1/3/1/6/131606733/dawutoxu.pdfIn PDF document text
    • http://movethissite777.com/uploads/1/3/0/8/130873735/vuremineketesex-figetonivekojer-xuwoz-bojefina.pdfIn PDF document text
    • http://siouxfallssdreview.com/uploads/1/3/1/3/131381204/5019317.pdfIn PDF document text
    • http://rhondasblingandthings.com/uploads/1/3/1/8/131872138/6539351.pdfIn PDF document text
    • http://digitalbusinessmasters.co.uk/uploads/1/3/1/0/131071167/6126610.pdfIn PDF document text
    • http://ips3presentation.com/uploads/1/3/1/6/131636761/xexaxamuvel_zevabelozur.pdfIn PDF document text
    • http://mesfsl.com/uploads/1/3/0/4/130476493/a7e85196012bc.pdfIn PDF document text
    • http://mta40.somekindofsimple.com/uploads/1/3/0/6/130621267/terms.htmlIn PDF document text
    • http://mta40.somekindofsimple.com/uploads/1/3/0/6/130621267/dmca.htmlIn PDF document text
    • http://mta40.somekindofsimple.com/uploads/1/3/0/6/130621267/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vusipubaze.files.wordpress.com/2020/06/zujivibonivanaxo.pdfIn PDF document text
    • https://satubawuk.files.wordpress.com/2020/06/78666115103.pdfIn PDF document text
    • https://nuluvojejuv.files.wordpress.com/2020/06/38279371218.pdfIn PDF document text
    • https://weberex.files.wordpress.com/2020/06/106574498.pdfIn PDF document text
    • https://pogunuji.files.wordpress.com/2020/06/xajubenujujuno.pdfIn PDF document text
    • https://ripogazas.files.wordpress.com/2020/06/vefopiralagitusus.pdfIn PDF document text
    • https://vozedut.files.wordpress.com/2020/06/3737985296.pdfIn PDF document text
    • https://xidiseso.files.wordpress.com/2020/06/parezatufosakapam.pdfIn PDF document text
    • https://vujibidob.files.wordpress.com/2020/06/30407864339.pdfIn PDF document text
    • https://rovekozo.files.wordpress.com/2020/06/getol.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

Related samples 8

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_off00006b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5E 9524 bytes
SHA-256: 62c0ca4be2d0fc2c0aa16f03746d4f2f106b184fd7da9808233b2d23cd1c9918

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