Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c863da6aa048e28…

MALICIOUS

PDF

45.1 KB Created: 2020-11-02 12:31:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 06b98ef6a4b4fd5554a5c0b15be83963 SHA-1: d78b7bb74b2968767162b03290f513a37f6994e4 SHA-256: 6c863da6aa048e289ffd8ef34b958b04b5ae3900d408581bfeff54d137edb546
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file 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 3

  • 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.
  • 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=pro+softball+leagues In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366995/normal_5f9f8e81d3528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369138/normal_5f907d7e32c39.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/mijedusovineti/tilufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b32af67-e2b4-498a-888b-17fa4c8723c7/purezaropuxufow.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/wakafogedugudaduxukibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a6b439a-2434-4b6e-aea3-a132ade1bdd8/82270988633.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2e673d4-89d5-4fbf-a6d8-15385c678b1e/sizujipawudagipobipe.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/pavumoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c59c46c-11d8-4069-aba3-c69a495c7dab/kamam.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/rinopimusefonuwusunep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/095eeb01-d5b5-4f2c-ac18-dff839a080b6/big_pusheen_stuffed_animal.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/21451903369.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/31722158191.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/gaputug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71477460-1659-4ec8-915f-032d0a43a4f3/la_chvre_de_monsieur_seguin_ce2.pdfIn PDF document text
    • https://s3.amazonaws.com/mupudipuvo/kosanibofisokorefu.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_off000072d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D7 5076 bytes
SHA-256: f323b48b87e5430d839c24bed79258d043c1d7eb0f4becaf15236924538bdd93
font_01_sfnt_off0000842c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842C 10512 bytes
SHA-256: 2e3fee16bbc2deaeeca32bb1dc7dc3019974a9dccb8b64ae10d75f5226864c91

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