Malicious PDF — malware analysis report

Static analysis result for SHA-256 9555d0de46a03b31…

MALICIOUS

PDF

66.9 KB Created: 2021-02-25 23:49:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 9729d2aac332abec23a111f016e351c8 SHA-1: 2700ec969a629aa6e154aac36feec2e109794f8b SHA-256: 9555d0de46a03b317e5f74969c36170dabde1c53eeffe345e19a8c3f733c3d46
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=pelton+and+crane+autoclave+parts PDF link annotation
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/26c0719b.pdfIn PDF document text
    • http://gufutaca1.xyz/45625242138dyjye.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445125/normal_6011a87575444.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422658/normal_5ff5fe1a28884.pdfIn PDF document text
    • https://wozogerodinanu.weebly.com/uploads/1/3/4/4/134498855/2655307.pdfIn PDF document text
    • http://wiinorama.space/84698698745qhteo.pdfIn PDF document text
    • http://detonic-hypertonie.website/867466977868gwnx.pdfIn PDF document text
    • http://bigever.iblogger.org/alaska_airlines_safety_dance_commercial_cast.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459792/normal_602ab4b4974d8.pdfIn PDF document text
    • http://topsalon.xyz/jifugotenonakivovv1kdh.pdfIn PDF document text
    • https://kagesurofuzesik.weebly.com/uploads/1/3/5/3/135303772/136652.pdfIn PDF document text
    • https://dukalafaziwemum.weebly.com/uploads/1/3/4/7/134772398/janufulevixigonodir.pdfIn PDF document text
    • https://zuvitapud.weebly.com/uploads/1/3/1/4/131406427/wufemitadexonuto.pdfIn PDF document text
    • https://dexekuweda.weebly.com/uploads/1/3/4/7/134705305/84f6477.pdfIn PDF document text
    • https://ragajepegoxi.weebly.com/uploads/1/3/1/3/131379061/gebudefurise_luzug_ledodi_telew.pdfIn PDF document text
    • https://fiziwiminika.weebly.com/uploads/1/3/4/6/134686918/kagopujewigixi-dudiragunub-tagakorokal-logetud.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/nitizobuv/data_analysis_toolpak_excel_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/brize_norton_live_flight_information.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/flask_render_template_html.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_off0000c99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC99C 5128 bytes
SHA-256: 3a7040b4d09eefc3fcf28c9b6fbb852cca512bc37880df8eea46ea45dab1973b
font_01_sfnt_off0000db23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB23 10340 bytes
SHA-256: f71ff54175b2b4098fa6452dc3194e4e60e9899f718df0b774a36931c4d9ab15

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