Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b69bf2a7ca8cb0e…

MALICIOUS

PDF

37.8 KB Created: 2020-11-02 23:52:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 5d24cf9b679488e3cf19aa4d142bbe84 SHA-1: e60abf6ca4e9c189dadc1d51eb94a4dc49855282 SHA-256: 2b69bf2a7ca8cb0ea003c30c68c45cce96b99b80140b75399d0ddec5e77dfd2a
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with at least two identified as part of a malicious redirector and a link farm. The primary malicious URL, 'https://ttraff.club/123?keyword=avast+business+console', is likely used to funnel users to further malicious content. The ML classifier strongly supports the malicious nature of this PDF, indicating it's designed to lead users to harmful sites.

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://ttraff.club/123?keyword=avast+business+console In PDF document text
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/zurozagedimel-wenexajegubes-dulufine.pdfIn PDF document text
    • https://lusogovo.weebly.com/uploads/1/3/4/3/134358567/7bd5148154a53a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371261/normal_5f8946c3e23f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403960/normal_5f9ee61531f7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_5f9da5b96f43b.pdfIn PDF document text
    • https://kamijiruwidezi.weebly.com/uploads/1/3/4/3/134387945/2568131.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401723/normal_5f9fb00186db2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f949b083079a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/sipir.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/bose_acoustimass_6_series_iii_cables.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/ff14_samurai_macro_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000569e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x569E 4888 bytes
SHA-256: 51bfaf1471175d420372cac40a52aa1a9132cbe6042027fe80a9769813f3fa1d
font_01_sfnt_off0000675a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675A 10516 bytes
SHA-256: bd3ec37e9f20dadeed769415f73974fa9d2b0599a504c6c1a3082fffe36ea602

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