Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eae8d34919181b8…

MALICIOUS

PDF

74.7 KB Created: 2021-03-14 07:20:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1b231d5eab8847b28f797a0314dd0da9 SHA-1: 91df2f3e260deb04f16c63e625d384e2e90ad30a SHA-256: 0eae8d34919181b8e1e43ebe338b5d76af30a8fad1b13b19485755cab728e7a8
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 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=garage+journal+ikea+cabinets PDF link annotation
    • https://guxofoxevi.weebly.com/uploads/1/3/4/7/134737998/febetisot.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/tiggjXM/jixojujupovuzazugonoroku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389604/normal_6026a3ec2927f.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/jha8YC9/50234951635.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/QqhaV56/foxida.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxogatuv/diaijhf/nomogodudakitodatemisar.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/epha2ig/zabonozitomakusekazez.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/jfgjhdC/spiral_fracture_tibia_dog.pdfIn PDF document text
    • https://cdn.sqhk.co/zumumolebajo/gigU2jj/zebra_crossing_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/towitudamuga/EhfngcX/kaiser_permanente_call_center_jobs_sacramento.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449205/normal_6044fa9c1ecad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458628/normal_60377e3bab684.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449603/normal_603a5c3ae91bb.pdfIn PDF document text
    • https://cdn.sqhk.co/zajujinul/JowgjqQ/five33_tiny_trainer_build.pdfIn PDF document text
    • https://cdn.sqhk.co/movumatoz/k1NgdsI/zefawobonasaf.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwewiwudesi/cfjfgcc/26066769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407997/normal_6015bf884c324.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/Xomggja/espn_nfl_score_predictions_week_8.pdfIn PDF document text
    • https://durafozo.weebly.com/uploads/1/3/0/7/130740533/zinibepuvi.pdfIn PDF document text
    • https://cdn.sqhk.co/vifejoneses/hcgcYhI/pmi_lessons_learned_template_free.pdfIn PDF document text
    • https://bizilekiri.weebly.com/uploads/1/3/4/6/134647150/bepujipep.pdfIn PDF document text
    • https://cdn.sqhk.co/gexopoku/ie7ihgj/app_discount_calculator_android_secret.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzufoxo/ejjijjv/copper_scrap_price_in_paris.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/djbhghg/3538101804.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE727 5276 bytes
SHA-256: 809ad9a85549ed5c6d8fb3563cb1a5dbf086b54c646a2bdd9797848ff03cf62d
font_01_sfnt_off0000f933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF933 10676 bytes
SHA-256: 1e6e8564c840b803ba70bde5c7e83a8dd785a4f8769ffbca51ed1feb639d08e0

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