Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4b4a0e5f2a5c62…

MALICIOUS

PDF

101.5 KB Created: 2020-12-31 18:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2f64c10fc7af3ec673b6e3d5cad0faa7 SHA-1: 53c6ffe5a0be88a712091cd688787069dbb6b65a SHA-256: eb4b4a0e5f2a5c62420930620f477c1ad0d39cf933b916da0c1ab835548d6449
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The primary URL, 'https://traffking.ru/strik?utm_term=uefa+champions+league+2020+us+tv', uses a lure related to the UEFA Champions League to entice clicks. The presence of ClamAV detection and ML flagging indicates a high likelihood of malicious intent, likely to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • 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.
  • 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://traffking.ru/strik?utm_term=uefa+champions+league+2020+us+tv PDF link annotation
    • https://pesefusuf.weebly.com/uploads/1/3/4/4/134486856/ledenejaze_zimixusoworara.pdfIn PDF document text
    • https://xonovezalewame.weebly.com/uploads/1/3/4/4/134489084/9d95d.pdfIn PDF document text
    • https://zolekifez.weebly.com/uploads/1/3/4/8/134850144/e4ec750c1169.pdfIn PDF document text
    • https://gupasozulo.weebly.com/uploads/1/3/4/4/134471060/2086933.pdfIn PDF document text
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/gozizasafoj.pdfIn PDF document text
    • https://giboramogu.weebly.com/uploads/1/3/4/6/134627050/7363408.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxovunevo/igJgNid/lozasaxaxadala.pdfIn PDF document text
    • https://misurenagikokiz.weebly.com/uploads/1/3/5/3/135332419/repasavonogikatasol.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/hihjdty/weradike.pdfIn PDF document text
    • https://cdn.sqhk.co/tefivezik/iLEmjj1/96447301652.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444630/normal_5fac36a54c2b1.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/xaH5hcU/20661107800.pdfIn PDF document text
    • https://cdn.sqhk.co/jofutagi/4hcWibO/susuwaguj.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://s3.amazonaws.com/perurulexi/26973531474.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B0D 7372 bytes
SHA-256: b6e5ac9c40ac8d1c832aa4f5d7bbfd369b8a8dc5131a37470be70a1869089970
font_01_sfnt_off000123fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123FC 5540 bytes
SHA-256: 3ce4b15df1d3a1bb2989351dd4a9dc816e9acda06c5dec8896bc6119a342580e
font_02_sfnt_off000136c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136C5 25084 bytes
SHA-256: 5e6e73eaf716532395a7a4841bacaf45bc743d999cbb60321e9ae70674331f1c
font_03_sfnt_off00017aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17AA1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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