Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee1e260616f576a…

MALICIOUS

PDF

39.9 KB Created: 2020-06-05 21:42:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 57716f892133b60ef8b45ada845e2eb7 SHA-1: b33ee43f330ba71c92f323a7e4955dc88c852855 SHA-256: 3ee1e260616f576abea6858d0d2334ff18d9b2181b016aada10ae369a1b3ef95
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body contains fragments of text and URLs, including 'http://babcafe.net/uploads/1/3/1/0/131071082/131071082.html#a+todos+los+chicos+de+los+que+me+ena' and 'http://iducknetwork.com/uploads/1/3/0/7/130776056/4677045.pdf'. This suggests a link farm or SEO poisoning attack, potentially leading users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 http://babcafe.net/uploads/1/3/1/0/131071082/131071082.html#a+todos+los+chicos+de+los+que+me+ena PDF link annotation
    • http://iducknetwork.com/uploads/1/3/0/7/130776056/4677045.pdfIn PDF document text
    • http://hostmaster.jubilatedesigns.com/uploads/1/3/0/7/130775167/lunuwurupox-zumaguba-kowizefevekefe-zidisel.pdfIn PDF document text
    • http://galinamilinova.com/uploads/1/3/0/6/130604685/4b9d628.pdfIn PDF document text
    • http://hillcountyplungettes.com/uploads/1/3/0/2/130289476/25c5ed23cef.pdfIn PDF document text
    • http://photoninon.com/uploads/1/3/1/8/131858156/wizaguriredakonu.pdfIn PDF document text
    • http://studentenerklaeren.de/uploads/1/3/0/8/130874104/rutelobufa.pdfIn PDF document text
    • http://lovelightshop.com/uploads/1/3/0/6/130639646/tixen.pdfIn PDF document text
    • http://babcafe.net/uploads/1/3/1/0/131071082/terms.htmlIn PDF document text
    • http://babcafe.net/uploads/1/3/1/0/131071082/dmca.htmlIn PDF document text
    • http://babcafe.net/uploads/1/3/1/0/131071082/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://sowekurodaji.files.wordpress.com/2020/06/wubogurufimitubejisanomuk.pdfIn PDF document text
    • https://dojujakukaj.files.wordpress.com/2020/06/pofijifasufekox.pdfIn PDF document text
    • https://wumudatimi.files.wordpress.com/2020/06/rupevoboverebajipakuf.pdfIn PDF document text
    • https://fapesuj.files.wordpress.com/2020/06/xusegomivejigekazofek.pdfIn PDF document text
    • https://sorimos.files.wordpress.com/2020/06/56340102940.pdfIn PDF document text
    • https://veloxagudop.files.wordpress.com/2020/06/zusekowaxirazajonisu.pdfIn PDF document text
    • https://powutaxu.files.wordpress.com/2020/06/nelovag.pdfIn PDF document text
    • https://gokasinowaf.files.wordpress.com/2020/06/62634780655.pdfIn PDF document text
    • https://xikupifilib.files.wordpress.com/2020/06/pudinekibazujawuwemovowo.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 1

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F1 13980 bytes
SHA-256: 0bf9fe74b379ef39a7553b2a49b84e28b7c4aaa1acae5c331fdb22b5c9ada207

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