Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5eb89189644437f…

MALICIOUS

PDF

67.7 KB Created: 2021-02-26 06:39:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 31bdcdb47448e8ff5017dba682239f0e SHA-1: b6c5350b11444aa1205fa3999767124dc507ef4a SHA-256: d5eb89189644437f5c5a50ce6aa7af1d968e8b1ecb980b1f73a91b1b6ab9711a
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which point to SEO-optimized URLs on Weebly and other free hosting services, suggesting a link farm or phishing campaign. The presence of ClamAV detection and ML flagging indicates malicious intent. The primary URLs appear to be part of a phishing lure, attempting to trick users into downloading a manual for a car diagnostic tool, which likely leads to malware.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/wix?keyword=actron+autoscanner+plus+cp9580+manual PDF link annotation
    • https://lujigoget.weebly.com/uploads/1/3/4/4/134482608/f21023016d9.pdfIn PDF document text
    • https://norusukesalija.weebly.com/uploads/1/3/4/3/134356509/pogubevivemeputuwu.pdfIn PDF document text
    • https://fiwarurebel.weebly.com/uploads/1/3/2/8/132814972/livunejazuvidex_mixawezevamapa_jenebavimuzefu.pdfIn PDF document text
    • https://kawuzuvom.weebly.com/uploads/1/3/1/3/131379118/datan.pdfIn PDF document text
    • http://natbeach.space/65418696160cf2gv.pdfIn PDF document text
    • http://lnstagram-verifedbadge.com/3200252832k89j2.pdfIn PDF document text
    • http://wuzubofetaxoger.iblogger.org/compose_and_decompose_numbers_11-_19_worksheets.pdfIn PDF document text
    • https://zugimawaxudal.weebly.com/uploads/1/3/1/4/131410952/xakufezusos.pdfIn PDF document text
    • https://kopikemuv.weebly.com/uploads/1/3/0/7/130740389/tuzivorosi.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/robumuduluwise/2015_ford_f_350_lariat_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/baldwin_formals_nyc.pdfIn PDF document text
    • http://vezapuro.rf.gd/2573286189.pdfIn PDF document text
    • http://jenofabejuvokag.epizy.com/pozot.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/capitalize_textview_android.pdfIn PDF document text
    • http://gesonumakokobal.rf.gd/62652775101.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/album_cover_maker_app_for_android.pdfIn PDF document text
    • http://rixuweba.rf.gd/command_line_interface.pdfIn PDF document text
    • http://kasisexa.rf.gd/12432344580.pdfIn PDF document text
    • http://ninonasoligu.rf.gd/dafikolovuf.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

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_off0000cc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC77 5684 bytes
SHA-256: e806309753b187aedbf9bb208a278b01af22a67a9bb72d394d3ebb330f25a5a7
font_01_sfnt_off0000dfb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB5 9576 bytes
SHA-256: cb5877e4048d42d86d6f0e79d55dafe869bda21052ecab377b17cca6990ecd22

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