Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae7c45b16311d0b…

MALICIOUS

PDF

39.2 KB Created: 2020-05-18 18:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: fe3582169e545b0bf1e8972ee22712c7 SHA-1: afbacf99e32fd58e8ea68e3ca4ca8cd4e341bf49 SHA-256: bae7c45b16311d0b5c88697cccf50e4c4f47164a2d1474a8d5ed07c35c3ad9b6
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The document body contains text related to 'Hava nagila sheet music pdf', which appears to be a lure to disguise the malicious nature of the links. No scripts were extracted from this sample.

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://hello-baby-toys.com/uploads/1/3/0/4/130477775/130477775.html#hava+nagila+sheet+music+pdf PDF link annotation
    • http://waterfallsorlando.com/uploads/1/3/0/5/130551391/8182101.pdfIn PDF document text
    • http://brynnviar.com/uploads/1/3/0/5/130539255/7736885.pdfIn PDF document text
    • http://diamonddrivewaysandpatios.com/uploads/1/3/1/4/131437554/9536489.pdfIn PDF document text
    • http://cortkrekoullc.com/uploads/1/3/0/2/130273762/midifajagedef-vanuti-dorixuroteteg.pdfIn PDF document text
    • http://jessieswift.com/uploads/1/3/0/7/130775053/5486457.pdfIn PDF document text
    • http://sterlingmedicalinsurance.com/uploads/1/3/1/3/131379866/6562734.pdfIn PDF document text
    • http://joanwills.com/uploads/1/3/1/3/131398597/degexe.pdfIn PDF document text
    • http://elementcontractors.net/uploads/1/3/0/4/130435631/f3a0499.pdfIn PDF document text
    • http://hogbosscatering.com/uploads/1/3/0/6/130620555/52a027537.pdfIn PDF document text
    • http://kosumomorishitapiano.com/uploads/1/3/1/4/131438086/6542e571167.pdfIn PDF document text
    • http://almostarthistory.com/uploads/1/3/0/5/130539297/2053318.pdfIn PDF document text
    • http://elite-caribbean.com/uploads/1/3/0/5/130543402/denafuwekenu_situjipu_kejaw_jikirunusefowu.pdfIn PDF document text
    • http://chompchoice.com/uploads/1/3/1/3/131382078/noxixoxi.pdfIn PDF document text
    • http://pruefungsangst-winterthur.com/uploads/1/3/0/2/130273791/visunolakogu.pdfIn PDF document text
    • http://myhandyhomeplan.com/uploads/1/3/0/3/130312976/kosobexibijewevibox.pdfIn PDF document text
    • http://anothercollegefashionblog.com/uploads/1/3/0/4/130483114/poximepikodew-wotupipeka-moverawalimaw.pdfIn PDF document text
    • http://koreaworldtexas.com/uploads/1/3/0/8/130813645/koresuwizifetam.pdfIn PDF document text
    • http://fabiolasaglimbeni.com/uploads/1/3/1/4/131453934/ravoges.pdfIn PDF document text
    • http://malamaaquatics.com/uploads/1/3/0/7/130775961/fikeretegagerurudow.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 5

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_off00006927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6927 12148 bytes
SHA-256: 0776d51e852d0e1b4f9d42384e0e11ec9f9c175996d90e24663142d37f04731a

Open this report in the interactive analyzer, or submit your own file for analysis.