Malicious PDF — malware analysis report

Static analysis result for SHA-256 700141741d5d0961…

MALICIOUS

PDF

71.7 KB Created: 2020-11-12 22:47:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 63e997c16bf1caa32b85f0bf227dfd59 SHA-1: da6c0389c696ba9b3660abf0bcdd2b289175d878 SHA-256: 700141741d5d0961e098c406856213c4d859c18fdaa0bc9f0fbedfa45672bff7
194 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffnew.ru/strik?utm_term=descendants+3+full+movie+online+free PDF link annotation
    • https://benoralegofalaw.weebly.com/uploads/1/3/4/5/134581061/1f822dc2.pdfIn PDF document text
    • https://fikifiwokadekaw.weebly.com/uploads/1/3/4/5/134585034/fb2e4.pdfIn PDF document text
    • https://vuguzunorofina.weebly.com/uploads/1/3/4/3/134322364/womexewipepodos_tojubodetas_xofisijojosefu_kafaze.pdfIn PDF document text
    • https://puwibovur.weebly.com/uploads/1/3/4/6/134639487/434d603b.pdfIn PDF document text
    • https://busiwilepajij.weebly.com/uploads/1/3/4/3/134353274/5b2860c370ab349.pdfIn PDF document text
    • https://tutofegabosig.weebly.com/uploads/1/3/4/7/134725810/2bb5db48b58772.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/1738ee99-91bf-44d6-92e4-4c13c2b55bb6/93505503845.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/tough_truckin_albany_ga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59196cdf-104d-476e-99e9-b63fe2bcb1b8/find_the_owner_of_the_golden_claw_bug.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/natovenikexinoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bea5a39-5952-4886-b909-d2559c5f0ba1/bruitage_traineau_pere_noel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d40bd08-dde5-4ca8-80ba-f0ee9673bea6/49730740779.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/afrikaner_nationalism_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/windows_10_ninja_cat_emoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72d14d24-e0d3-4791-b56a-2ff251b35541/wijazewewukuvuro.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_off0000d39b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD39B 5392 bytes
SHA-256: 8afa2551386be66552165d3eee29a2e4470ff1e7732f1c1a60f3add79c9e2fc2
font_01_sfnt_off0000e5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E6 13748 bytes
SHA-256: 6a76a45d44eea41ed5f4e66be75ab320e62c35df7b695767361c56794a0c998c

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