Malicious PDF — malware analysis report

Static analysis result for SHA-256 0337c5c062f678c9…

MALICIOUS

PDF

78.2 KB Created: 2021-03-25 07:38:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 968b951dbc7bde081348cbdfc50c13bf SHA-1: 57b3b6c25f998f9b2f987f0ba09762c3eb0bf6df SHA-256: 0337c5c062f678c9aeecfaba95c6b91310469073fdbf358b390f79c86ca50b4c
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 0.9992

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://pelibifir.ru/wix?keyword=julie+of+the+wolves+study+guide+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4390659/normal_5ffa38d6a801c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446398/normal_5fd246a1a0de2.pdfIn PDF document text
    • https://cdn.sqhk.co/madumubo/jjghfFr/37236458826.pdfIn PDF document text
    • http://tojuvapemupo.mywebcommunity.org/activity_based_costing_article.pdfIn PDF document text
    • http://jofifuneku.medianewsonline.com/alton_towers_park_map.pdfIn PDF document text
    • https://cdn.sqhk.co/miropefaneka/yhcTxpL/cute_superhero_coloring_bookoli.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuzodopuvu/jisjdGh/speed_boat_tours_mekong_delta.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/hggcljL/bibarutusotup.pdfIn PDF document text
    • http://pokovata.scienceontheweb.net/abbreviation_of_in_computer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482206/normal_604e492329c50.pdfIn PDF document text
    • https://cdn.sqhk.co/mizipudi/iaOQDHS/mozimoganobegifizak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450048/normal_6047e0b344f3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://perorudo.epizy.com/gift_certificate_template_free_blank.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/9482201878.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/96472837375.pdfIn PDF document text
    • http://duletufazipup.epizy.com/94777236731.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/viwesatalizanudide.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/6425253606.pdfIn PDF document text
    • http://fimaxopazeviv.rf.gd/firofavibabejijunudu.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/67255336046.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/kayla_itsines_intermediate_workout_no_kit_full_body_session.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/toyota_camry_hybrid_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/13920103556.pdfIn PDF document text
    • http://damexodawu.epizy.com/givibup.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_off0000f563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF563 5240 bytes
SHA-256: 52d5f2db52796360ffeb100322dbc5c25b90f9dc821c2c3b683fb26c8ca7c41e
font_01_sfnt_off0001075d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1075D 10644 bytes
SHA-256: 1953316104c4a11bef1c4ebf21605cffc3b2f755c2ea454b4404a633a2c1e7bc

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