Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c213c20cd848d12…

MALICIOUS

PDF

75.7 KB Created: 2021-03-15 00:06:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1a54c84594df989aece412ea49db864f SHA-1: 34cb58e419c462402f2bcd25cce85ac557bb33cc SHA-256: 6c213c20cd848d12877059d3b94ef80f717c67e18b8f0f7af540da56caede99a
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=data+warehouse+pdf+francais PDF link annotation
    • http://cmbclientes.com/51564809022k0h9i.pdfIn PDF document text
    • http://tegor.xyz/66463581415um1iz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388274/normal_604ab2d05adc8.pdfIn PDF document text
    • http://honbiz.pro/gefegujavaur5sx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418991/normal_5fe80113b6da2.pdfIn PDF document text
    • http://vojidovalo.iblogger.org/airbnb_first_pitch_deck.pdfIn PDF document text
    • http://tigefezatolipeb.iblogger.org/the_acquirer_s_multiple_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501046/normal_5ffbae371ee89.pdfIn PDF document text
    • http://generatorsale.ru/company_safety_plan7x0sn.pdfIn PDF document text
    • http://weareanonymous.org/mavebe1473o.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/palikuvexake/diwugabivevavonidowiv.pdfIn PDF document text
    • https://1e16f6d7-285b-4488-bf07-d3e24ac90e20.filesusr.com/ugd/417718_1ef320c73ac640059c02790639785d86.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/lawn_care_service_agreement_template.pdfIn PDF document text
    • http://sevuvev.epizy.com/handlebar_moustache_trimming_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/giving_tuesday_email_templates_mailchimp.pdfIn PDF document text
    • https://e8dc5420-792a-4861-90db-09cfc8d8a7d1.filesusr.com/ugd/1378f5_41fa1571926c4dfd94590bca7bb45009.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/88431004752.pdfIn PDF document text
    • https://ff4d9611-e7ea-45f2-85d3-f0b464ef817f.filesusr.com/ugd/48f461_33bccef5037f43a2ae415c680ede8b2e.pdf?index=trueIn PDF document text
    • https://600f4601-20ee-45a1-b5c6-05549d14c22e.filesusr.com/ugd/2f8cea_ff527b325e55457bbd700ebe4a5af6ed.pdf?index=trueIn PDF document text
    • https://3d5b2cfc-74f5-4c02-8466-0d369b02955c.filesusr.com/ugd/69b86f_bd403b09401f4013a7667630b17015dd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/78588744292.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/sitokog.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_off0000e7f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F3 5300 bytes
SHA-256: ea4c8ad37b0b3045e348c101d0cb57d8973d1c5b8ac0e7991d411b41cd0b07a9
font_01_sfnt_off0000fa1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1A 12168 bytes
SHA-256: 38a0049fc8a0b23fda8eb8946a4006b6db6b1c7fd8eccac81f760b380bbb6ddb

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