Malicious PDF — malware analysis report

Static analysis result for SHA-256 865a1f8810697f7d…

MALICIOUS

PDF

39.9 KB Created: 2020-03-15 12:59:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 8ffe9140a971541dec9a9f45c296e98e SHA-1: 98b9241a470c3b6d6e77cae61e4481c620e6d04a SHA-256: 865a1f8810697f7da6240ff480c04bae9b2152b1aa623fa657ac67dc47ca9e32
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO manipulation tactic. The embedded URLs and the document body text, which includes phrases like 'Behold our god pdf', indicate a potential lure to engage users. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://host15.pleasingfood.com/uploads/1/3/0/6/130604379/130604379.html#behold+our+god+pdf PDF link annotation
    • http://shortlistproperties.com/uploads/1/3/0/4/130435594/manijodalo_sawotawaza.pdfIn PDF document text
    • http://www.5thgradescienceiv.com/uploads/1/3/0/8/130874648/702513.pdfIn PDF document text
    • http://www.mrsmckiskissocialstudieswebsite.com/uploads/1/3/0/5/130551063/rizoxekizip.pdfIn PDF document text
    • http://123-give.com/uploads/1/3/0/4/130489363/bimefuzesufun.pdfIn PDF document text
    • http://www.ericraymundo.com/uploads/1/3/0/7/130738963/mifivodefaxote.pdfIn PDF document text
    • http://www.alicemanganphd.com/uploads/1/3/0/9/130969141/373783.pdfIn PDF document text
    • http://netflixhomeacc1.com/uploads/1/3/0/5/130590153/gapuxawo.pdfIn PDF document text
    • http://jcleskoasueportfolio.com/uploads/1/3/0/2/130272390/goworevabuzaz-zidixafeteni.pdfIn PDF document text
    • http://www.trimblevancouver.com/uploads/1/3/0/5/130551794/fedufolasus.pdfIn PDF document text
    • http://www.sandstonelaw.com/uploads/1/3/0/7/130740368/nikib-lojudog-ranufimivajin.pdfIn PDF document text
    • http://thrivingbudget.com/uploads/1/3/0/2/130288320/jilegejisuvalalemi.pdfIn PDF document text
    • http://avalonbusinessconsulting.net/uploads/1/3/0/3/130313624/f61ac7c7.pdfIn PDF document text
    • http://pixelbeatscreations.com/uploads/1/3/0/7/130739004/vuwovubifuvi.pdfIn PDF document text
    • http://orangecountyflamenco.com/uploads/1/3/0/5/130540507/ximujikudom-vadawanulum.pdfIn PDF document text
    • http://webmail.bold-essentials.com/uploads/1/3/0/6/130639980/9207928.pdfIn PDF document text
    • http://daksfalk.com/uploads/1/3/0/2/130287307/pulolemeta-miladejivesusas-jewuki-xurozodagoxuso.pdfIn PDF document text
    • http://noahhotels.com/uploads/1/3/0/3/130379482/1014056.pdfIn PDF document text
    • http://didodey.vip/uploads/1/3/0/6/130620267/94935afddd46ba4.pdfIn PDF document text
    • http://mail.pulpfunctions.kiwi/uploads/1/3/1/0/131070152/cc91104bae0.pdfIn PDF document text
    • http://greenbuiltroof.com/uploads/1/3/0/6/130622066/kobiwegide.pdfIn PDF document text
    • http://naveedsonikamembers.com/uploads/1/3/0/7/130775032/xudekiwurib_sebetazodinuv_metadoxanedak_dolanibugib.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

Related samples 6

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_off00007149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7149 9076 bytes
SHA-256: 8e01670774061aeb9b7429a4502c1253746363f17de387fadbb091df2c752979

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