Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ebd0c3106a9dba…

MALICIOUS

PDF

80.6 KB Created: 2021-04-07 11:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0cfb201b28735214a6329cbdf569b951 SHA-1: 229f808cb8f2a74ffd9202b1b1a15b8e07ce5836 SHA-256: 24ebd0c3106a9dba8ba5144dcae511ccc8bcd87f48e476824a1d2e00a1c0359d
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9994

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wix?keyword=dyson+v6+motorhead+instructions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475719/normal_6040169949489.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369161/normal_5fdeb8acdaafb.pdfIn PDF document text
    • http://wujejejifi.mygamesonline.org/wakiwaxuduzoxexowijuseki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466675/normal_600824d171062.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/beats_by_dr_dre_powerbeats_3_warranty.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450141/normal_5feda3b0a02cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373502/normal_5fe019275bdc3.pdfIn PDF document text
    • http://wajuxerisowo.iblogger.org/wild_arms_3_upgrade_guide.pdfIn PDF document text
    • http://parovosi.mygamesonline.org/20346468865.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wojodine.rf.gd/36317537343.pdfIn PDF document text
    • http://kekokid.epizy.com/ariat_jeans_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/pubg_game_minimum_requirements_for_android.pdfIn PDF document text
    • http://wuvasof.epizy.com/criterios_de_resolucion_de_cetoacidosis_diabetica.pdfIn PDF document text
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_c28a69df886d4513a7e4de1bb75af9e3.pdf?index=trueIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/geological_time_scale_chart.pdfIn PDF document text
    • https://fd0ef26f-7b8f-4c91-b3b2-19f7ec93487a.filesusr.com/ugd/4174bf_5977fbfcdfb642bc9ecb2c18e68b74c9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jebokizez/42321328195.pdfIn PDF document text
    • http://foraxukesog.rf.gd/vuwepazofiwevipepib.pdfIn PDF document text
    • http://daxopejukovadej.epizy.com/wabenogojikexaku.pdfIn PDF document text
    • http://munoxefarofow.rf.gd/13150856448.pdfIn PDF document text
    • http://nazowovemozugiv.myartsonline.com/asme_code_for_pressure_vessels.pdfIn PDF document text
    • https://abe99a74-823b-4c5d-85d6-f8d8de52422f.filesusr.com/ugd/73cc63_85a9e2adcde64f2a85aa82a35e26f8d9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tomaxade/yiruma_music_sheet.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_off0000f85e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF85E 5464 bytes
SHA-256: c9488356f456d2e26f49456b142068f928717e4e6298f799d4523740e12bfc94
font_01_sfnt_off00010ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD7 11936 bytes
SHA-256: c82183c692ce999fc04142ce8adc16bb7d525de5f52ef09bf8f07b2181f7a37d

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