Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a9d166706db798…

MALICIOUS

PDF

38.9 KB Created: 2020-10-06 12:36:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1c654abfaacc4b8abc1c8c594e959b81 SHA-1: df24ae9b119d84fcdc4e40a3523b1b1d93e6154d SHA-256: 32a9d166706db7980a45dcf39eaa5917ded85e03aab9ebb02479569435a6f2bf
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=telecharger+deadpool+vostfr In PDF document text
    • http://files.plazacateringboston.com/uploads/1/3/1/8/131857791/5115702.pdfIn PDF document text
    • http://gapawa.shopcafeparis.com/uploads/1/3/1/6/131606746/67d17.pdfIn PDF document text
    • http://dumugi.wowtasmania.com.au/uploads/1/3/1/3/131397971/6933675.pdfIn PDF document text
    • http://wamuv.chicagodrip.com/uploads/1/3/1/4/131437889/posereliketiko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2c74fea-0484-4f09-85f8-b6d27f5c4352/80148952948.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f191cb73-dd17-464b-b5c5-1c76ca18bd7e/nanusejajoloxodilakirid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c887e7ee-a77c-4ab6-9b6b-8f8bbc4f4b8e/69955391299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9162cd32-8323-4499-95f3-f5cec1687420/63303998615.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dd6d4eb-5ff9-4d52-97e2-6c6387bc062b/jomanesuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3246534-e25c-453a-8810-425a4445cbc2/bopupivigasawomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fde1a0b-817a-45a1-9a33-f3c55f360cf6/38418144182.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faeb1f81-3db4-40aa-a6b6-8169e4f0e894/6966785364.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dd8cc4d-30cd-4f85-af8f-8bdf34323f14/wexewunugopakufez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eacf06c2-0061-481c-ad9f-53de78ae9a3e/gojizoluxij.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 5

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_off000059f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F9 5424 bytes
SHA-256: 541e377c692420d3eb2a7ca6220c11279e710b4a683a9bdf4bd27f575d4e24b1
font_01_sfnt_off00006c6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6B 10296 bytes
SHA-256: 6cd1336f7f3cc31bbc21232f05c1c68e08c5e0498e5fcdfc672ab90838e61617

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