Malicious PDF — malware analysis report

Static analysis result for SHA-256 47246cd54b2c18d5…

MALICIOUS

PDF

80.4 KB Created: 2021-02-19 11:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2b8ae6398edf85076df336f04a8b4a44 SHA-1: cec2043f2d521a116da2689bbded1cff08938c92 SHA-256: 47246cd54b2c18d5e71cdae199ec2f22a4da61deee0c708045661d628141b836
162 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though partially garbled, mentions 'Honda black max 7000 watt generator parts', suggesting a lure to entice clicks. The presence of a link farm heuristic further indicates malicious intent to distribute links, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://crophysi.ru/123?utm_term=honda+black+max+7000+watt+generator+parts In PDF document text
    • http://puruzil.iblogger.org/who_is_on_the_cover_of_clockwork_prince.pdfIn PDF document text
    • http://jivopifavu.22web.org/fine_motor_skills_worksheets_and_printables.pdfIn PDF document text
    • https://borubonaxufiza.weebly.com/uploads/1/3/5/3/135318051/mujipupapodepedaru.pdfIn PDF document text
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/tozowezata-papuwokaregi.pdfIn PDF document text
    • https://bufamugogok.weebly.com/uploads/1/3/3/9/133986728/resom.pdfIn PDF document text
    • https://kewekekonuv.weebly.com/uploads/1/3/4/7/134732265/ziniv.pdfIn PDF document text
    • https://filafibiwi.weebly.com/uploads/1/3/4/3/134316544/15c75ec7b7b.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/dukajevo/zebosozuvajusefizerab.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/autonomic_nervous_system_pharmacology.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/business_card_template_free_uk.pdfIn PDF document text
    • http://sijopar.epizy.com/likagotodonodajakusebovap.pdfIn PDF document text
    • http://guxajez.rf.gd/41782795224.pdfIn PDF document text
    • http://pofumitiko.epizy.com/34055466442.pdfIn PDF document text
    • http://gidigeja.rf.gd/7328322386.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/12497522858.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/suxubozinamum.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/raxevekiduzukoz.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/jojonarumagofunegotiku.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/inequality_word_problems_practice_worksheets.pdfIn PDF document text
    • http://bugifub.epizy.com/vikebixew.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/linenomoniw.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_off0000f6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BD 5940 bytes
SHA-256: 80cfc6974f0580e93fdaa86ee20cb43fc7e525b46d728fa50c53677232a3e318
font_01_sfnt_off00010af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF2 12108 bytes
SHA-256: ebb477b8b6f6b3889636ecd3b54b1563470f03ad756c1cfa60a2ccbe1b8ce6b9

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