Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d93046aa202d77…

MALICIOUS

PDF

80.3 KB Created: 2021-03-09 02:35:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: ab88947eceafc5e1923699c9de920626 SHA-1: e939b265d401a7236b4f2fd9b7e4c7c8a70be993 SHA-256: 32d93046aa202d7744d02b6ae029fde9f0b527e42a72dee692a22b5826b2ee99
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of external links, suggesting it functions as a link farm or a distribution point for further malicious content. The primary URL observed, 'https://maypoin.ru/123?utm_term=new+canada+food+guide+in+french', is likely part of this malicious infrastructure.

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://maypoin.ru/123?utm_term=new+canada+food+guide+in+french PDF link annotation
    • https://jaluvipuruwagub.weebly.com/uploads/1/3/4/7/134734890/794e81d1d85.pdfIn PDF document text
    • https://wadasazaba.weebly.com/uploads/1/3/3/9/133999184/5da85cb.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/1892303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492555/normal_5fe42c25de446.pdfIn PDF document text
    • https://kemewekodu.weebly.com/uploads/1/3/1/8/131857474/0857b3270a.pdfIn PDF document text
    • https://porojole.weebly.com/uploads/1/3/4/4/134462866/9320496.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460232/normal_600e417f647bf.pdfIn PDF document text
    • https://taxupati.weebly.com/uploads/1/3/4/8/134891344/ruvod.pdfIn PDF document text
    • https://xuredetinumimo.weebly.com/uploads/1/3/4/6/134630251/a64962403c0fca.pdfIn PDF document text
    • https://xidumalebuwun.weebly.com/uploads/1/3/4/8/134894794/xezokoz.pdfIn PDF document text
    • https://jilusuno.weebly.com/uploads/1/3/5/9/135958885/sekefamexew.pdfIn PDF document text
    • https://kekugijofer.weebly.com/uploads/1/3/5/3/135321092/pitobakabeb.pdfIn PDF document text
    • https://lutomired.weebly.com/uploads/1/3/5/3/135316507/437293.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/lijopavexanuse/vosidakokalap.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/neverwhere_neil_gaiman_barnes_and_noble.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/zenasavukasaz.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/arithmetic_sequence_algebra_1.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/los_angeles_times_sunday_crossword_puzzle_books.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/faginixelatezip.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_off0000fdc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC2 5136 bytes
SHA-256: 9d41a2ef14a816521cebe5ecbd08c63752c03dbe4ee3853a1160c8bbb4f2da95
font_01_sfnt_off00010f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F53 10704 bytes
SHA-256: c8aaf4eef9dbccf6afa9d06ffa22abfd850b16b5f209afab69fddb9f7ba92d9d

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