Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab5184ee2da28b76…

MALICIOUS

PDF

95.8 KB Created: 2021-03-02 10:03:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 0106f549c5b7a2d02f7f2bb7eb615a88 SHA-1: a183ccae449d8794a24b4aa380cca955a7b5d9a4 SHA-256: ab5184ee2da28b76cd55788e3df47b6df427b9a5f97c58464fdeed037a92c5fb
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, which is likely used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/strik?utm_term=1996+evinrude+70+hp+wiring+diagram PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453730/normal_5fe5bd887002b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426260/normal_6003fe737c723.pdfIn PDF document text
    • http://digitalmicroteter.xyz/fozesuwupoxagiza87b9m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380393/normal_5ffb23377d0e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475741/normal_5fce69e4a9f01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426424/normal_5fcc809a222ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383445/normal_5fe1ccf043920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_5fdaaae1bb3ae.pdfIn PDF document text
    • http://famafivas.iblogger.org/beneficial_ownership_secure_search_system_act.pdfIn PDF document text
    • http://djami.ru/ketazesadofufogusabajedarb3t63.pdfIn PDF document text
    • http://winnerslm.space/sonajituwudi47knf.pdfIn PDF document text
    • http://boothattendant.com/bhaskaracharya_mathematician_informationz9m2t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470385/normal_601dca2f85306.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454990/normal_60296c36be215.pdfIn PDF document text
    • http://shoop-fk.ru/800660867401iyrp.pdfIn PDF document text
    • http://shoop-fg.ru/4373207973gn1i9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pikuvideposem.epizy.com/b._ed_online_form_2018_up.pdfIn PDF document text
    • http://fuwotimusajitos.rf.gd/franchising_book_in_the_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/53170942414.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/4938552296.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000136d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136D6 5804 bytes
SHA-256: 2dd03d507f03cb5da18d55505c0f7d786b4227bb39f5bb321ec7b55d3478513c
font_01_sfnt_off00014a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A8D 11728 bytes
SHA-256: a59eb3f9829f819580791727356b79c86dc2dd5ce637ed05d849dd34b08a7b29

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