Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9cc70ba04df884…

MALICIOUS

PDF

112.5 KB Created: 2021-05-22 20:48:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: dd13f86e03d3fd780f2c2a22a159c38c SHA-1: 9ef69a8c009ebccc02e6bf030bbb926e0593c791 SHA-256: ed9cc70ba04df884eea7fccd54d9c766ab74f7dce1511085925c2569553bedc4
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm, pointing to various PDF documents. The primary URL, 'https://lozipotod.ru/strik?utm_term=generali+rundum+gesund+katalog+pdf', suggests a phishing or malicious content delivery attempt. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of it being used for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lozipotod.ru/strik?utm_term=generali+rundum+gesund+katalog+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482020/normal_606212222e568.pdfIn PDF document text
    • https://xutesinazered.weebly.com/uploads/1/3/4/5/134529246/6241786.pdfIn PDF document text
    • https://tawozajoruje.weebly.com/uploads/1/3/4/3/134314125/3422822.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368248/normal_601e3ca7b8852.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448719/normal_5ff9004c23402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417040/normal_6033ded3ce7ab.pdfIn PDF document text
    • https://gosibipidumoduj.weebly.com/uploads/1/3/4/3/134318513/nokimep-pepipimogoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414486/normal_6006587494d36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409256/normal_5fdd6e67f14d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391909/normal_5fc73ee845ec8.pdfIn PDF document text
    • https://kipigifusulip.weebly.com/uploads/1/3/4/4/134437712/2286367.pdfIn PDF document text
    • https://lixuzagaleve.weebly.com/uploads/1/3/0/9/130969249/kokizizilemi.pdfIn PDF document text
    • https://mawoluzapulumar.weebly.com/uploads/1/3/6/0/136082117/motelujawixev.pdfIn PDF document text
    • https://vulopinuvi.weebly.com/uploads/1/3/1/1/131164419/0c80c5703.pdfIn PDF document text
    • https://vuminuzatadabem.weebly.com/uploads/1/3/4/3/134311796/mogevaxidepifag_fetoxinazi.pdfIn PDF document text
    • https://zobagitolofoxaz.weebly.com/uploads/1/3/0/7/130739917/0c786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366958/normal_6065cd54a4b38.pdfIn PDF document text
    • https://dezijetide.weebly.com/uploads/1/3/4/8/134864221/e584b761.pdfIn PDF document text
    • https://bofeliwibetu.weebly.com/uploads/1/3/2/8/132814086/sepone-beputudapi-fojiporefezur-fadumab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/54323404143.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/tascam_dr_05_vs_07.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/99866001712.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/integrated_grammar_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/devi_chitralekha_video_free.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_off0001743e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1743E 5456 bytes
SHA-256: f5ffa4c882998b03335229ac72f1a1612d3c68501826426948e7e06eacd081c3
font_01_sfnt_off000186ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186BA 13460 bytes
SHA-256: eb04da90680aff3c855c285661e228586419a1d6e08c9fb65748dd7fd32e72ed

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