Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a09a70235cfa20e…

MALICIOUS

PDF

58.4 KB Created: 2020-11-03 00:18:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9f607829e58a42ca2c638dd33fdead4f SHA-1: d2e92d19cc59a1c21c047a7c888a41a13f83b1ee SHA-256: 2a09a70235cfa20e421a378d3f8630412995e36fba2faa4ce4c94bf432322ad2
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://gettraff.ru/123?keyword=titanic+full+movie+watch+online+hd In PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/sekiperomapob-zisefazuma.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/757d97e5e.pdfIn PDF document text
    • https://disanelazutiwi.weebly.com/uploads/1/3/4/3/134361230/temuvet.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/pewatijosasag.pdfIn PDF document text
    • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/dajinora-paxuma-jobefiwemuj-semexiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415300/normal_5f9bf3735ffc9.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/7904132.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/guvovigo/ielts_writing_tips_for_band_9.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/51510682218.pdfIn PDF document text
    • https://s3.amazonaws.com/potevip/38040419347.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/limafiwovulit.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/lesonekinurafug.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000099f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F7 4972 bytes
SHA-256: 4e3080b53eedb6918c03c1621746294fb4dcac217e4d7498caa086ab6c1024fe
font_01_sfnt_off0000aac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAC5 10488 bytes
SHA-256: f541b05c7fd58ab951b4650b1f4225bb5bdce0dae9324c750ecc89f65de69620
font_02_sfnt_off0000ce8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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