Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5829b051ad861a8…

MALICIOUS

PDF

74.4 KB Created: 2021-03-08 22:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e3d8a5806952fcdc7ada8345c77afdfc SHA-1: df1b725e70a434b05c2d4b546979ba6c41008296 SHA-256: d5829b051ad861a88a0299828cd5cac0d79c190371fcf3705f562f16c8dd70dd
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, suggesting a link farm or phishing attempt. The presence of embedded URLs and the overall structure indicate an attempt to redirect users to malicious sites, likely for credential harvesting or further malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/award?keyword=hotel+revenue+management+basics+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4385413/normal_5ffbef40718a1.pdfIn PDF document text
    • https://guditeni.weebly.com/uploads/1/3/4/5/134529862/vadejenez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426945/normal_5ff7985f8c2e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367921/normal_5feb067c75d88.pdfIn PDF document text
    • https://bemiredo.weebly.com/uploads/1/3/5/3/135322707/71972e.pdfIn PDF document text
    • http://amandeepsadyora.com/where_to_buy_premier_protein_cafe_lattecqiqr.pdfIn PDF document text
    • http://bestcreditcheck.info/wouxun_kg-uv3d_programming_softwarei501i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493920/normal_5fdcf2228b179.pdfIn PDF document text
    • http://hookup668.site/business_vocabulary_word_list9qjqa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370540/normal_5fc63a780c276.pdfIn PDF document text
    • http://ighelperscenter.com/formato_del_diagrama_bimanual_en_blancotzcpv.pdfIn PDF document text
    • http://dektesheff.xyz/bigajoloxofirisavomozeza6r1a6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f9c380c0-3c9a-404e-8c76-a924832b335c.filesusr.com/ugd/9c8fb9_5a3c1249c83f4a4d8ef29229a730e53e.pdf?index=trueIn PDF document text
    • https://a0f1d9c0-ea46-4e0e-9383-d87711d3127f.filesusr.com/ugd/1e3fb7_d60d06eb6f2948d987ea4b25afc9a148.pdf?index=trueIn PDF document text
    • https://810dce77-56ab-4324-823a-3549757f4eab.filesusr.com/ugd/1fad07_978c1b5940b24a63bb32c087ba2ed4c5.pdf?index=trueIn PDF document text
    • http://zarusorujot.epizy.com/vazotolufusawiza.pdfIn PDF document text
    • https://da99f664-88c7-4a27-98aa-0bbcec2e8f57.filesusr.com/ugd/66f3f9_25ecf0a86a1343c685f41ae03a7b152b.pdf?index=trueIn PDF document text
    • https://154530d8-637b-49d0-b90a-43bf07a176fb.filesusr.com/ugd/59359a_fd463d66fd1841aeba4e6eb075da961b.pdf?index=trueIn PDF document text
    • https://ec08fec6-e576-400d-8504-372613838d3c.filesusr.com/ugd/57e0ce_06707ee7bb1e4e2f85faef8fe3cb5f4e.pdf?index=trueIn PDF document text
    • http://raxusitusumulag.rf.gd/slope_intercept_form_word_problems.pdfIn PDF document text
    • http://fizifar.epizy.com/g_shock_mudman_3150_manual.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e59a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59A 5636 bytes
SHA-256: 7c7fa760db75ffd3d29673d1fae6f3ec63cb0d7379f075ff1949efe89767ca73
font_01_sfnt_off0000f8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A9 10460 bytes
SHA-256: f9bc97b9330613a0315ee8366e1ed9df5440a0d6857cbb6359756a2ca9a7fb16

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