Malicious PDF — malware analysis report

Static analysis result for SHA-256 8087157eda546d62…

MALICIOUS

PDF

42.2 KB Created: 2020-11-09 01:22:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: abb5efdf308c45b518dd46cb05b98672 SHA-1: 2632e1b20e617fa166c8e41885acbfda8c859de5 SHA-256: 8087157eda546d62a6ec502f909c3550b44f729d1543a388091b35ddee0d3c3b
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=soraka+guide+s6+series In PDF document text
    • https://xuwuperozaposa.weebly.com/uploads/1/3/2/3/132303395/kokajesalasefokez.pdfIn PDF document text
    • https://xopaluwejur.weebly.com/uploads/1/3/1/8/131857284/80f858ada.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/gupuso/ielts_answer_sheet_format.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/73572867442.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/zejutiwojovebapilugeji.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/papejalute.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/52689710483.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/calphalon_toaster_oven_tscltrdg1_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40786011-80e7-4fe3-ae16-4ceb0dab8e7f/city_siege_3_fubar_hacked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c377376-25d3-44bd-ac01-d026b62f0af3/43999470367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93f8eca0-16eb-433a-b094-ec73d41608f2/skyrim_se_lighting_mod.pdfIn PDF document text
    • https://damilum.files.wordpress.com/2020/11/fotozigirevukekes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2e330ef-9e20-4f53-900d-2082fc3bdb10/2086638018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17d771a9-3f22-4a83-b4a0-1eb10a6143b1/use_boost_phone_on_assurance_wireless.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faae68c4-56a5-4b7e-a7cb-a9f7ff417f96/70927735338.pdfIn PDF document text
    • https://s3.amazonaws.com/luresimosip/51987079409.pdfIn PDF document text
    • https://meniluw.files.wordpress.com/2020/11/voxezekipufejitopewuginov.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000661c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661C 5280 bytes
SHA-256: 99de424cfd846ac658b3ea169d2fa08fe1abdd3e02f96149ac8b763080ca7e69
font_01_sfnt_off0000781a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781A 10724 bytes
SHA-256: 05dc2280dc745255409ea6288d71a2da8b62c686a83f1948e74e70386ada2d1c

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