Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fc513e1b12bfd5…

MALICIOUS

PDF

84.4 KB Created: 2021-03-25 03:14:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 18f38bb8d758be9aaa48414ce168da66 SHA-1: 958193d5807d7552d499b5cd184d1d413d4a0a58 SHA-256: 75fc513e1b12bfd56d373a1548b33258f65fd8dd78e6615001641497a91127c4
156 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://fokemale.ru/strik?utm_term=sony+fs5+ii+specs PDF link annotation
    • https://govobozof.weebly.com/uploads/1/3/5/3/135315692/e2019c8840815.pdfIn PDF document text
    • https://regutipedazuvi.weebly.com/uploads/1/3/1/0/131071249/gorexuduvidisav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476288/normal_6044aa7134e34.pdfIn PDF document text
    • https://cdn.sqhk.co/wirowanorax/hjdjaHY/pinball_game_for_pc_online.pdfIn PDF document text
    • https://joweralifaj.weebly.com/uploads/1/3/4/3/134350132/vuxugutisadul-naxerezuzuziz-zurewob-miwumovoner.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/hEEvghB/warwick_jungle_runes_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497358/normal_602d364f675ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454290/normal_6052d69a939dc.pdfIn PDF document text
    • https://cdn.sqhk.co/zezetemirag/ggDhcBZ/gukifijibobax.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/gogoxowiniza/faster_smoother_ml.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/chatous_unlimited_coins.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/is_the_movie_ruby_bridges_on_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/rhino_javascript_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/tofovifegapatugapuluwoj.pdfIn PDF document text
    • https://288dffde-0386-48bd-adba-b069b5f3b70f.filesusr.com/ugd/7e1b39_9a15f329dc2e44afb72ab156265d74b9.pdf?index=trueIn PDF document text
    • https://b20aee1f-b1b7-4e4e-be5e-d884e4ece670.filesusr.com/ugd/10e3af_6ab4dac5cbbd42b6aca0dd190cd88a98.pdf?index=trueIn PDF document text
    • https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_b0546138b08144879966b96d804f3d5a.pdf?index=trueIn PDF document text
    • https://d89a15f7-21b5-45f0-b9b4-bc5b7be68842.filesusr.com/ugd/18e821_0a40f3946fe54323b88202438ed9fdfe.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/action_plan_sheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/75319851243.pdfIn PDF document text
    • https://47e4df30-8702-49a4-8bd5-327e1546ff06.filesusr.com/ugd/379272_a4e7303abba24c8f88d2c885745f27e2.pdf?index=trueIn 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_off00010da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA0 5000 bytes
SHA-256: f5c9a0be7b7377dfbeb0e98cf5a16344102b78442636da43cf1c46cc5dca5d73
font_01_sfnt_off00011ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED6 11444 bytes
SHA-256: fdcb4e48d77ff0a4362feb1cbf2ea9eb809069527ccb49ad4cc24458af1cf585

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