Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee96268d1254f9ab…

MALICIOUS

PDF

83.9 KB Created: 2021-03-16 17:37:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 3741cbf4d214f493799572ed76e72f38 SHA-1: fda3006080704aa796418fb897ab74b79a8c73b4 SHA-256: ee96268d1254f9ab43f62f380fbd34a4b57f72c3487a966da62f1adbec33729b
164 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one identified as a potential malicious URL (ponafet.ru). The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The presence of a 'download button' heuristic further supports a lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponafet.ru/wix?keyword=ps+vue+guide+not+working PDF link annotation
    • https://definifizuzum.weebly.com/uploads/1/3/4/7/134759181/bamamus.pdfIn PDF document text
    • https://vefiwuzozubeki.weebly.com/uploads/1/3/0/9/130969791/fofudobatavizenolat.pdfIn PDF document text
    • https://zixatemanareku.weebly.com/uploads/1/3/4/4/134472678/9611470.pdfIn PDF document text
    • https://lutafutenitar.weebly.com/uploads/1/3/4/3/134381418/mugusage-zitov-pudemanusufamer-nekupi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4850b743-5bf4-4d99-8678-e7d332a8082d/poquito_mas_tostada_calories.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/2005_chevrolet_trailblazer_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/anatomy_of_story_truby.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd457234-57b1-43a6-8e61-a7c0c1cf80cd/do_you_want_to_build_a_snowman_violin_sheet_music_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/catholic_latin_prayer_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b2831b9-06d6-42f8-adbf-68074b11d48f/how_to_pass_maternal_child_nursing.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/6399990577.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/kukuboronarusilapad.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/how_to_breed_mini_dachshunds.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/vipitoruno.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/73853752412.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/hunter_x_hunter_2011_filler_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/25892620297.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/xuliwumatos.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/bhangra_competition_dj.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/missing_411_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/titad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09871989-6316-47c9-a6fb-8a7aa5eda319/spinoza_ethics_book_4.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/dozota.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/97581078819.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_off00010a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A33 4968 bytes
SHA-256: 9f166a1a0910bff2d36e1e001f8a4d19ec96aef053e0cb632bb94a40d354483f
font_01_sfnt_off00011b43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B43 11456 bytes
SHA-256: 44ccc56f215c5975ec2e489ef0d49fee522271e639dde2d5c26606aefbc6433f

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