Pdf.Dropper.Agent-8257594-0 — PDF malware analysis

Static analysis result for SHA-256 84586ced49897223…

MALICIOUS

PDF

42.5 KB Created: 2020-05-14 04:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: feecfda364b100123d700a39f8991221 SHA-1: 18057a32a9a9122ad9bc0bb3709ace888b7318d8 SHA-256: 84586ced49897223cbadb3ce8677ac59a47d27ad58692194b175b4a6e0222a99
156 Risk Score

Malware Insights

Pdf.Dropper.Agent-8257594-0 · confidence 95%

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

The PDF file was detected as Pdf.Dropper.Agent-8257594-0 by ClamAV and flagged by an ML classifier. It contains a large number of external links, indicating it functions as a dropper or a link farm for distributing other malicious content. The primary purpose appears to be directing users to a vast array of other PDF files hosted on various domains.

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.
  • ClamAV: Pdf.Dropper.Agent-8257594-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8257594-0
  • 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://block1949-asu.com/uploads/1/3/1/4/131453046/131453046.html#gasteracantha+cancriformis+for+sale
    • http://caravansalesni.com/uploads/1/3/0/5/130550879/4387b85af0.pdf
    • http://kristamalia.com/uploads/1/3/0/6/130621749/3198140.pdf
    • http://mcalistermarketingmn.com/uploads/1/3/1/4/131453111/83d53a4ffa6bf01.pdf
    • http://camillasdesignandinteriors.com/uploads/1/3/1/3/131398509/f504d35.pdf
    • http://anewconversation.net/uploads/1/3/0/8/130813550/ravozemobede.pdf
    • http://markroselab.org/uploads/1/3/0/6/130620924/9e9cb43690d1351.pdf
    • http://alloexo.solutions/uploads/1/3/1/4/131453603/mirolepude.pdf
    • http://foccocontabilidade.com/uploads/1/3/0/5/130588202/kopefopebezinina.pdf
    • http://wehappyhair.com/uploads/1/3/1/4/131437487/bupopopelimuna_mojurokexivaju.pdf
    • http://kidsgalaxylearningcenter.net/uploads/1/3/0/6/130639965/wegilegiv.pdf
    • http://samevenson.com/uploads/1/3/0/5/130588842/2907548.pdf
    • http://discobeauty.org/uploads/1/3/0/7/130738568/gaxutedija.pdf
    • http://southboundboutiqueco.com/uploads/1/3/1/4/131453241/1126403.pdf
    • http://pipersbbq.com/uploads/1/3/1/4/131437410/4920206.pdf
    • http://thechurchofbrotology.com/uploads/1/3/0/8/130815137/furowo.pdf
    • http://frasergoodfellows.com/uploads/1/3/1/4/131407183/banipafukawulujedav.pdf
    • http://edibleessential.net/uploads/1/3/0/8/130814611/goxapodekovosipeb.pdf
    • http://leilamartina.com/uploads/1/3/0/3/130312980/12c369fed3512d0.pdf
    • http://wilsonmemorialtrust.org/uploads/1/3/0/6/130605306/xazuxelifibokifog.pdf
    • http://tlihs.com/uploads/1/3/1/3/131378930/7488791.pdf
    • http://easterinnb.com/uploads/1/3/0/2/130272504/letovavaxitoza-dimaxeme-dasamo-jisitepo.pdf
    • http://kyungsan.us/uploads/1/3/0/4/130488734/wusoxubenutuzuz_tadulomaruv.pdf
    • http://becketbender.com/uploads/1/3/1/4/131406563/sibemiramupuma-gijipeg-gumutokanojoba.pdf
    • http://emittherapeutic.com/uploads/1/3/0/8/130874365/lesokulefidosaxat.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007581.bin
9e91aee87b395d200a9659a62ac312cad8587b5b27ff13e7d29ef1ab224fa074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 11784 bytes

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