Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42e6a4ea651d125…

MALICIOUS

PDF

38.1 KB Created: 2020-11-01 05:43:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 52baf31f12741d29a5f50db985f8e5f3 SHA-1: 5363bab30027620b84bc1d4fdb1725fd25846dcd SHA-256: e42e6a4ea651d12581843384ebb768ecb1c65a18ee6103f318ce107b4ddf7437
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://ttraff.ru/123?keyword=national+vision+administrators+network In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366647/normal_5f8a7ff123c86.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/tupoxit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/3474/5253/files/manual_gear_shift_lever_loose.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/mataxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1048/1085/files/greenpoint_mortgage_capital_one.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/65573573438.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6217a7a-15a5-45ea-b8f2-18b1a1e5dc82/fepikotebakuxalolopifolex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32c776a7-a407-4909-9196-d80be41e6e87/moxibikumetokatej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8455/5448/files/lovexu.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/32459806822.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/corporations_act_nsw.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/residential_tenancy_agreement_form.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/medical_certificate_form.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_off00005540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5540 5156 bytes
SHA-256: 7681c031bb201bd30270618ecf7adabdd0bef2f96ba6d51885938a2679d2d0ce
font_01_sfnt_off000066ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CA 10664 bytes
SHA-256: 42584b6564099be29d3f77f55eafda13c20bfcf5c3f2870b83ad5b28ae4e2573

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