Malicious PDF — malware analysis report

Static analysis result for SHA-256 4805bf18eff5509c…

MALICIOUS

PDF

79.4 KB Created: 2021-02-12 04:42:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fa0a07c7100e992e579722b6482bc832 SHA-1: f923c5e1517b867a30dbc46bdb7a3031e957b185 SHA-256: 4805bf18eff5509c4b608086919fc7df316b8b0f5d10c13a83fc4817f482b81d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/wix?keyword=anthony+bourdain+medium+raw+pdf PDF link annotation
    • https://cdn.sqhk.co/zidodovare/fymVrje/marooned_meaning_antonym.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/aJif1hb/papanejomevoviloma.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488569/normal_6011c6f1e619c.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/jaS76Ui/jungle_animals_images_photos_free_download.pdfIn PDF document text
    • https://gerikolobel.weebly.com/uploads/1/3/1/3/131398187/tutikesam_temimuxoroz.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/icvhbIq/40592288515.pdfIn PDF document text
    • https://pexasuwen.weebly.com/uploads/1/3/4/5/134593650/7f0e9.pdfIn PDF document text
    • https://nugijokokul.weebly.com/uploads/1/3/0/9/130969158/kubumididiwabu.pdfIn PDF document text
    • https://joxejiduzimomad.weebly.com/uploads/1/3/1/3/131383973/f185f341534fda.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/geZ6Hn2/launchpad_fulton_county.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/bDjTFNj/folem.pdfIn PDF document text
    • https://tewazaxapij.weebly.com/uploads/1/3/4/8/134873756/7a1081ca3c2e.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/gfhdgdg/63662076574.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408476/normal_5ff1c066680d2.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/cjbgihb/best_love_letter_for_girlfriend_in_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448096/normal_5fd3b1617ada0.pdfIn PDF document text
    • https://bibutijelogoper.weebly.com/uploads/1/3/2/7/132740620/2c681f.pdfIn PDF document text
    • https://cdn.sqhk.co/vivakawibaki/gsbYlLZ/nesosuzowe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f9ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AB 5396 bytes
SHA-256: 212f3eca0a7de2e2ed9aba139af6c1c19940513c1cf086a3175d7a809d16968d
font_01_sfnt_off00010bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BEF 10672 bytes
SHA-256: 56b389ea1a0f1c8ce0267f4a40d8112602dea0e1983a60bd0d191469c894de49

Open this report in the interactive analyzer, or submit your own file for analysis.