Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b8ae8b58216f9e3…

MALICIOUS

PDF

65.7 KB Created: 2020-11-10 08:35:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 748b3c6ae653a6afdffae214710b6987 SHA-1: d6a0beb0e7f65fd4d9e982bfa10720abe42c9c7e SHA-256: 0b8ae8b58216f9e3203f82693d759e117a20450c58bd171b15fe50d5c92370cc
154 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 ClamAV and 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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=shiva+third+eye+meaning In PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/gefup_kimubapodevig_wuxexim_dufati.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/f9007.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401515/normal_5f92266ed4266.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_5fa208f841e3a.pdfIn PDF document text
    • https://vozexipazaxa.weebly.com/uploads/1/3/4/4/134444785/5558302.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/wimubikor-jijiloj-jemabo-jibeperukidu.pdfIn PDF document text
    • https://roxexiku.weebly.com/uploads/1/3/4/4/134445291/7af253a03ff54.pdfIn PDF document text
    • https://xubikorapaja.weebly.com/uploads/1/3/4/3/134335605/6d3b7.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/bulolimepol/67218188244.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/dna_crossword_puzzle_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/40732034349.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/calculation_of_equivalent_weight.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/molezuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/texifaxepag/give_me_liberty_chapter_20_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/gasimidaf.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_off0000c7ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BA 5296 bytes
SHA-256: faa9c0ee827d5ae071c1062160af287cb44859f41b72b4f0217fe33f9f72a08a
font_01_sfnt_off0000d99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99B 9456 bytes
SHA-256: 5a9c03644840cfc6ce6461d45058f1847d79a6b34c04bc13d16297932ae5ee3a

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