Malicious PDF — malware analysis report

Static analysis result for SHA-256 beed046e34f24638…

MALICIOUS

PDF

69.4 KB Created: 2020-11-21 06:30:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a8d0dfadfb30ace3245629fbd1c62303 SHA-1: dc38d14414eed7381a8f4da4066d4cfbb57c07db SHA-256: beed046e34f246389c52ad55fe493a9878d77db4b2982d7e92af687431ccaacd
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://trafftec.ru/aws?utm_term=hello+neighbor+mod+apk+menu PDF link annotation
    • https://sazagirisama.weebly.com/uploads/1/3/4/5/134585928/fekofumukomebow_dubafuzuz_favemizo_roviludizogosug.pdfIn PDF document text
    • https://nuvuxupu.weebly.com/uploads/1/3/4/5/134507381/e838c2b3b.pdfIn PDF document text
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/nowozutega-nufer-donorinokikenik.pdfIn PDF document text
    • https://motadali.weebly.com/uploads/1/3/4/3/134368257/b9eaae7.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/jegipegerapenizujo.pdfIn PDF document text
    • https://wunimebi.weebly.com/uploads/1/3/4/3/134361225/goputibononilax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385412/normal_5f9f15766da85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373788/normal_5f89d82f1e2c4.pdfIn PDF document text
    • https://kedetasogo.weebly.com/uploads/1/3/4/5/134599644/5116627.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/ca1ffedb-3a3f-49e6-b8c1-b9e02b402a59/mibezejowirivobudobinano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24ffbccf-1006-4799-a28c-d0178fda7e5f/93024228643.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9df55fc3-7e20-4009-a843-0cc28f9fe957/wabeselipaxofirupafogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e2c4b62-b396-4e78-b420-2af47b32d6e8/91592677664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b494a28-8f54-4c21-bcf1-3a1cf35b81a4/tiredemedilexidoxop.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_off0000d1dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DC 5360 bytes
SHA-256: 80037ab38b99b70e18f00075ff6b75bafe4cb05517fc8167896c2e6fdfb168b4
font_01_sfnt_off0000e3e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E1 10780 bytes
SHA-256: 1b7de2beed60b169f40d0ff35925b8e5aaf9bfd2a67b1f0a5e6c11000a9cac79

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