Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f0ff7a26a9b254a…

MALICIOUS

PDF

38.9 KB Created: 2020-04-02 08:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: a90dad40f07d2283f7f5eac93308a326 SHA-1: 40877947897e1f3b6d080ed428d4afcfeb3975dc SHA-256: 7f0ff7a26a9b254a135b7bd3921674182ca28f9aee8c1187965c9e3e9cab0d60
96 Risk Score

Malware Insights

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

This PDF document, disguised with a seemingly innocuous title, contains a large number of embedded external links. The heuristic 'PDF_SEO_LINK_FARM' indicates these links are likely part of a link farm, suggesting a malicious intent to manipulate search engine results or redirect users to malicious content. The ML classifier strongly supports the malicious nature of this file. No scripts were extracted, but the extensive link farm points to a content-luring or redirection attack.

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://avabaycompany.com/uploads/1/3/0/5/130543985/130543985.html#los+siete+lenguajes+del+amor+pdf PDF link annotation
    • http://ledisti.ca/uploads/1/3/0/9/130969657/474198.pdfIn PDF document text
    • http://akony.org/uploads/1/3/0/6/130620522/tagikumof.pdfIn PDF document text
    • http://vertcapital.com/uploads/1/3/1/3/131382590/wumek.pdfIn PDF document text
    • http://oasisinnovations.net/uploads/1/3/0/9/130969709/jiwukefir_jarilezexodozaz_lajoxoz_wowawaju.pdfIn PDF document text
    • http://recreasale.nl/uploads/1/3/0/5/130588291/lewirus.pdfIn PDF document text
    • http://reconstructivetattoocenter.com/uploads/1/3/1/3/131398185/939e3cc123535a7.pdfIn PDF document text
    • http://lkradio.online/uploads/1/3/0/5/130590363/584dd3b3.pdfIn PDF document text
    • http://robcofreedomcelebration.org/uploads/1/3/0/6/130604371/496987.pdfIn PDF document text
    • http://the-art-and-craft-cottage.shop/uploads/1/3/0/2/130270808/9294924.pdfIn PDF document text
    • http://lifeback.org.au/uploads/1/3/0/7/130740019/9c888723.pdfIn PDF document text
    • http://picturegurus.com/uploads/1/3/0/4/130483667/guzadavejezar.pdfIn PDF document text
    • http://royaloakfoundation.com/uploads/1/3/0/4/130490668/negesi.pdfIn PDF document text
    • http://thehealingbeginsonline.com/uploads/1/3/0/4/130489423/laputafowemamiwemew.pdfIn PDF document text
    • http://nativetouchnatural.com/uploads/1/3/0/7/130740066/debaronoxugew.pdfIn PDF document text
    • http://pioneers-mena.org/uploads/1/3/1/1/131164552/zexukowetopoboz.pdfIn PDF document text
    • http://fspchaptershowcase.org/uploads/1/3/1/3/131383747/8d64613e8.pdfIn PDF document text
    • http://nebike.org/uploads/1/3/0/3/130323461/516c5b978.pdfIn PDF document text
    • http://janecrosscreative.com/uploads/1/3/0/5/130588511/lazifapi_bowolale_tobijufe.pdfIn PDF document text
    • http://sewallcommunications.com/uploads/1/3/0/7/130740224/c070cc.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 2

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_off0000701a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701A 7764 bytes
SHA-256: ad9a4c6da97b7c4d78f2e47ac1b7bb582902a3d59556f9a23b22eb6586582a81

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