Malicious PDF — malware analysis report

Static analysis result for SHA-256 05931932f91df638…

MALICIOUS

PDF

69.7 KB Created: 2021-02-25 23:04:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 29bfc48c6c6dd5a66ebaf2cc7c8c2e8c SHA-1: a7d5426812621c2528c04273815792f2fa1e8419 SHA-256: 05931932f91df6380d7a3be7ab58bd4696b624ff6a6beccddbc01b32309cb9ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/wix?keyword=471+detroit+diesel+repair+manual PDF link annotation
    • https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/7d84f5ed6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383806/normal_5ffcfe9344fe1.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/epbgPfJ/17804885937.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/can_i_upload_my_dna_from_myheritage_to_23andme.pdfIn PDF document text
    • https://cdn.sqhk.co/kizulajeli/ha8K7Oz/20099961890.pdfIn PDF document text
    • https://cdn.sqhk.co/setewefasari/mV8Wig8/totisolaleworixaz.pdfIn PDF document text
    • https://nevozijefase.weebly.com/uploads/1/3/4/7/134748823/0d8efd95a3bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463009/normal_6022c5929b1e3.pdfIn PDF document text
    • http://idealica-uficialeitalia.website/numerumubag2tk9z.pdfIn PDF document text
    • https://japejezapunat.weebly.com/uploads/1/3/3/9/133999519/74d349f283cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423752/normal_602544c663669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450439/normal_60047ebd067b3.pdfIn PDF document text
    • http://openchambre.xyz/8678736613563k7p.pdfIn PDF document text
    • https://cdn.sqhk.co/limexofure/cVtcUZt/diy_mask_pattern_with_elastic.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kebanibaru.epizy.com/68600770725.pdfIn PDF document text
    • http://zakusomob.rf.gd/greece_santorini_travel_guide.pdfIn PDF document text
    • http://ligoroxenafof.atwebpages.com/25280592483.pdfIn PDF document text
    • http://milodip.epizy.com/49588874149.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_off0000d54d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54D 5228 bytes
SHA-256: 4d0378b65b88939b3848d081cec8f5e63c5ed9085ac0bee212fc8d1dc1456fd7
font_01_sfnt_off0000e70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70D 10152 bytes
SHA-256: d848b3fdf02d82475616d0b6bdfe20cb26c9aed15fb5f3e8452c2b9a552cb557