Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a2bddbfd5eae52…

MALICIOUS

PDF

80.2 KB Created: 2020-12-22 17:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9b071f704731c74ab69adc38fc9c8597 SHA-1: 49e8b7ded9a4d1bf947df2f9c5a7f1d1ba734127 SHA-256: d0a2bddbfd5eae52be0db37d042158451742db5b9a457b611fcc3a01652ba17d
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document and hosts a large number of external links, many of which are likely part of a link farm. The primary malicious URL identified is traffking.ru. While no scripts were directly extracted, the ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/123?utm_term=la+grande+odalisque+analysis PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4472481/normal_5fc7f593e0677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459164/normal_5faa4ba3b3560.pdfIn PDF document text
    • https://zazivobonapi.weebly.com/uploads/1/3/2/6/132696398/luxubu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457296/normal_5fab7be1be8c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465919/normal_5fd22d901c06c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388612/normal_5f920066455b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc713abaa0dc1643a2f70df/t/5fd689d2491a58544a17cbd7/1607895506889/agenda_diaria_2018_para_imprimir_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/vegedeputudisum.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b942c6d96458362de91d/t/5fc3decc173fb5383b1a5475/1606672076652/resistencia_magnitudes_electricas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52e78bda9c57a97da122f/t/5fc7e151e67fb654ad73736e/1606934866141/90_s_trivia_questions_and_answers_uk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc295c5a5bc066edfb0618a/t/5fc3a86a5147b14804a2de99/1606658156149/what_is_a_half_diminished_chord.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf5182665af30590bf3305/t/5fd64d6d481cfa31adc48cc5/1607880045929/72190462118.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/tofuzaburovo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE201 8232 bytes
SHA-256: e533b3e9d7b390e595ae0bcd09fc87f74e75e9454352cbe31c05020b5874d529
font_01_sfnt_off0000fd5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5F 5164 bytes
SHA-256: d3cc6c9c5012827aa67e532f547ffe013d2d096926072f73e978189f3e16fb56
font_02_sfnt_off00010eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EFF 10916 bytes
SHA-256: ef85e489103097ee73b6e5f5442182e45eb14c7cecdbc63eda84b97408478b71

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