Malicious PDF — malware analysis report

Static analysis result for SHA-256 59de4412eeed7f52…

MALICIOUS

PDF

159.3 KB Created: 2020-11-17 01:23:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a543f07e869379113c1f01fc98c7b8c8 SHA-1: 43300fcb4abaff848f3ba7746655a21cc688d8d5 SHA-256: 59de4412eeed7f5223cd0719bd45b41e0236e81a7284c3ee487f14c1ea3b1ff4
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafficel.ru/123?utm_term=sample+appraisal+report+real+estate PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454691/normal_5fade5e141e31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_5f8f41a2570d6.pdfIn PDF document text
    • https://zapineri.weebly.com/uploads/1/3/4/7/134707132/jakibumu.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/gavuvugababoxadeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e0b1bc3-9092-46f6-80b7-d4d4ad10270f/a_case_of_exploding_mangoes_characters.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/73439607194.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/77615412450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a00662c-cb9e-493b-8df7-60e81e7bec69/kejupo.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/manualidades_papel_de_diario.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efcc31de-88c7-452f-bb70-84e536dcd4c7/36156121646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5eb85b8d-9664-4a86-93f9-e575ead68916/los_poetas_malditos.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/11586648852.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/rododojevebusowek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac10935c-61be-41d0-aa48-1b6dd788a374/95612053404.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_off00022d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22D56 1788 bytes
SHA-256: a6c40f1b112756d7e930067776ffcff64786d77cfafd0c04a511a582c0144114
font_01_sfnt_off000235df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x235DF 5068 bytes
SHA-256: e99cb504a5f47b265fdf7b8cc8cb2b366b8446a93440067218c29099a8774085
font_02_sfnt_off000246fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246FE 12048 bytes
SHA-256: 04d8118c61e44bc5d745767ff087c5227ceea43948cc99e502e67767ff2d0d76

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