Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d12240e9575181b…

MALICIOUS

PDF

98.7 KB Created: 2021-02-22 11:01:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c76285341dbcaa2b4cc774129d07b0c0 SHA-1: 9713dfe1e807141e40df3b2b61c40c138bc55cd8 SHA-256: 0d12240e9575181be0dc335e3fe0ceb2ad8037d34af738f84bba7dcee5d6f768
156 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of the primary external links points to 'https://bologen.ru/123?utm_term=powerful+prayer+points+for+sunday+service', suggesting a potential phishing or content manipulation lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or distributing further malware. No scripts were extracted, but the structure suggests it's designed to redirect users to malicious or SEO-manipulated content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=powerful+prayer+points+for+sunday+service PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374518/normal_5ff64a27cc6e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406170/normal_5ffa1104e7470.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387419/normal_5ff064609b48e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404723/normal_602e80031b8ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420756/normal_600614d04f501.pdfIn PDF document text
    • https://tuledekubixa.weebly.com/uploads/1/3/4/7/134722649/tebanokebugekadi.pdfIn PDF document text
    • https://gonuvogizup.weebly.com/uploads/1/3/1/8/131857562/lunok.pdfIn PDF document text
    • http://dsv-trening.ru/instruction_pipelining_in_computer_architecture_tutorialspoint8ny08.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477864/normal_5ff526c3e72d2.pdfIn PDF document text
    • https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/2e1be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426819/normal_5ff0a40a341fb.pdfIn PDF document text
    • http://fasad-dom.site/tropico_6_xbox_one_controls2uens.pdfIn PDF document text
    • https://ripukalogud.weebly.com/uploads/1/3/4/3/134391837/petixixepivusagi.pdfIn PDF document text
    • http://ashotik.space/69076673629r4mk8.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/283060040747eoou.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wojixefem.epizy.com/24680709593.pdfIn PDF document text
    • http://kadapefiwemol.epizy.com/what_season_does_shippuden_start_on_netflix.pdfIn PDF document text
    • http://fekaratog.rf.gd/topics_for_table_topics_session.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_off000144e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144E4 5404 bytes
SHA-256: 04bd959168fd1a071b734ebafad9f16a041fdf68e32c49659df39b51143cadd5
font_01_sfnt_off00015771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15771 11564 bytes
SHA-256: 06d0c54c9d213edfb475ec21c5de34516e0db1eaedea7fa5fb7f5362cc925bd3

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