Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3d6397d2ff3755…

MALICIOUS

PDF

79.1 KB Created: 2021-02-18 06:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5ae439b74df23f10d32e0b964d2fddfa SHA-1: d12fcd91c76e93a10e83aed777363d5bc68768c5 SHA-256: 5d3d6397d2ff3755cfa1db2d30fc038d270542c8faca67ee5c901fa44e0b8213
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/aws?utm_term=can+i+sell+food+from+my+house+in+california PDF link annotation
    • http://weraka.online/free_scroll_saw_patternsda00w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484814/normal_5fd130cc10a05.pdfIn PDF document text
    • http://xamipofu.22web.org/ritosoker.pdfIn PDF document text
    • http://cetly.xyz/wikenewekefesuo5be.pdfIn PDF document text
    • http://hookup666.site/wedatesepidibikk392c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_600fb7f6977da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467273/normal_5fc84c23c88ef.pdfIn PDF document text
    • https://cdn.sqhk.co/vifejoneses/dihiehg/download_diamond_calculator_for_gamers_ml.pdfIn PDF document text
    • http://vsspb.ru/vowifewefalaks04o.pdfIn PDF document text
    • http://wititabeg.22web.org/lemek.pdfIn PDF document text
    • http://gulebamabixaku.22web.org/descriptive_geometry.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_5fdb38565274d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://damikofem.rf.gd/calculating_magnification_worksheet_ks3.pdfIn PDF document text
    • http://batefagut.epizy.com/51194220032.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/wufemux.pdfIn PDF document text
    • http://ruxuwidoke.epizy.com/2647313386.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/ao_smith_35000_water_softener_manual.pdfIn PDF document text
    • http://lowavizoviwu.epizy.com/zupuwax.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_off0000f911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF911 5268 bytes
SHA-256: 7827dbdd3c1e82a80cb78c1cf4a8db0fa67d72de4cefacc18ccd6de325d4ec4c
font_01_sfnt_off00010ad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD9 10640 bytes
SHA-256: c7471a723192e40ca2632c7ddea4a21f27827395dc25f4cf331dab1f78695964