Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce70077662096cb…

MALICIOUS

PDF

32.4 KB Created: 2020-05-19 03:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: 3dd00efac72428b183f71523ecd2d84b SHA-1: d36c55004b3bcc3e17f8fae811ed294aadf08899 SHA-256: fce70077662096cb838137d984185063422127546b5891882f3ac74acc80e1de
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous PDF files hosted on various domains. The embedded URLs suggest a redirection or download mechanism, likely intended to lead the user to malicious sites or files.

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://westhollywood-rc.com/uploads/1/3/0/4/130488688/130488688.html#yellow+korner+nantes PDF link annotation
    • http://thecare888.com/uploads/1/3/0/6/130640229/bedez.pdfIn PDF document text
    • http://robynandwill.com/uploads/1/3/0/3/130379380/3727805.pdfIn PDF document text
    • http://savannahlejeune.com/uploads/1/3/0/2/130289238/jimab-jinet-likupotuwemi-tafosafijapata.pdfIn PDF document text
    • http://nanmade-bags.com/uploads/1/3/1/4/131484467/76bae7faac9f928.pdfIn PDF document text
    • http://cequime.com/uploads/1/3/0/4/130436313/pofugonadoraxa.pdfIn PDF document text
    • http://pennyflickart.com/uploads/1/3/0/6/130621076/denejer.pdfIn PDF document text
    • http://freyapty.com/uploads/1/3/0/3/130379311/8882730.pdfIn PDF document text
    • http://stratasoft.org/uploads/1/3/1/6/131606073/vobusoniwewa_tupejuti_radoda.pdfIn PDF document text
    • http://innerleithen.online/uploads/1/3/0/4/130435600/5274978.pdfIn PDF document text
    • http://bringyourgurltoworkday.com/uploads/1/3/1/3/131384403/kesovajowuwa.pdfIn PDF document text
    • http://twosistersdips.com/uploads/1/3/0/6/130621000/9779357.pdfIn PDF document text
    • http://frederickmartialarts.com/uploads/1/3/1/6/131606065/4668461.pdfIn PDF document text
    • http://mgeducation.net/uploads/1/3/0/4/130488365/fipebaxabu.pdfIn PDF document text
    • http://joshross.org/uploads/1/3/0/4/130477309/2672766.pdfIn PDF document text
    • http://roaminitaly.com/uploads/1/3/0/8/130873717/dobefutobuperefun.pdfIn PDF document text
    • http://premiumbrickandblocklaying.com/uploads/1/3/0/4/130476309/9416877.pdfIn PDF document text
    • http://arjandoornbos.com/uploads/1/3/0/7/130776756/1739321.pdfIn PDF document text
    • http://foodietee.com/uploads/1/3/0/6/130620420/3862358.pdfIn PDF document text
    • http://hartmanconsultingllc.net/uploads/1/3/0/7/130775271/2894377.pdfIn PDF document text
    • http://coconsaonline.com/uploads/1/3/1/4/131437005/bowumovapivuroloduru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 4

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_off000051bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51BF 10504 bytes
SHA-256: 6340cf2e2ef47c8a8e3d6950efc2f4b36152c521d31d54ee76eff8ec39496608

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