Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cd4345ed25a1e1…

MALICIOUS

PDF

85.7 KB Created: 2020-12-07 18:16:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: a92fbe42ed8ce9417b9b824556389387 SHA-1: 1925a9bf09d3906a9755bf70bc4485dd7fa25e58 SHA-256: 46cd4345ed25a1e12a10f608f49534febbcd376c1c4f8733772d7bbf1299118b
244 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on disposable domains and point to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded URL 'https://gettraff.ru/strik?utm_term=nikes+communication+goal' is a critical indicator of this malicious activity.

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
  • 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.
  • 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.
  • 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?utm_term=nikes+communication+goal In PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/5189562.pdfIn PDF document text
    • https://kuvejepi.weebly.com/uploads/1/3/4/4/134452054/36bed165d67.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453888/normal_5fccf4788bf29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392220/normal_5fb2f0d7c5f7c.pdfIn PDF document text
    • https://gofolonuk.weebly.com/uploads/1/3/4/3/134313710/8891865.pdfIn PDF document text
    • https://kusuvafivubiret.weebly.com/uploads/1/3/4/8/134888197/gufukis.pdfIn PDF document text
    • https://rexojufupul.weebly.com/uploads/1/3/4/5/134523972/naxozamidekomu-leguweve-samisisa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/b0991ba2-8b5e-40bd-a77c-7151983e5bfa/sunbeam_sqh310_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/fesozexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bab9ddf-f292-40d5-b1d5-10b5f3607284/vuposesakatur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05082bd5-b07e-4e24-8f18-d6b54e11504c/81102600374.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40f9a515-3078-40ba-a667-b81bb1151777/32199489520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a381f6ed-8340-4648-aa29-08c0f533537a/79911829019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a55c17a-9a83-4a09-81b1-530e0995c637/witefagelumakudari.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/circular_saw_cutting_guide_diy.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E2 4940 bytes
SHA-256: 70f8b9fbdd313db9665094b3122174d2f3c5e5d776a3c7577dfb8497b761100c
font_01_sfnt_off000116a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116A0 10732 bytes
SHA-256: 191d3b634a94402681f8a7d01280e22217b666f3c9632140c23c0ec27fc409dc
font_02_sfnt_off00013b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B5C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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