Malicious PDF — malware analysis report

Static analysis result for SHA-256 caae8dee7155d75c…

MALICIOUS

PDF

70.4 KB Created: 2021-03-05 17:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2ef0c33f11b7c14581db973f90d70780 SHA-1: f9ac61d838dc6815fa8944da25a313b7a7eed648 SHA-256: caae8dee7155d75caacabd51c90e77ae8cb30e9e12739f18eb146a54d1438c1d
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 0.9959

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 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://pelibifir.ru/aws?utm_term=taurus+pt111+g2+extended+grip PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401558/normal_5fe7cc6f249c5.pdfIn PDF document text
    • http://filuniguwol.22web.org/46645190657.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445118/normal_5fe33d5bc438e.pdfIn PDF document text
    • http://xtrading.buzz/unblocked_games_77_tank_troubles9qxq.pdfIn PDF document text
    • https://cdn.sqhk.co/rowojazur/hjqhfic/instagram_captions_for_couples_at_a_wedding.pdfIn PDF document text
    • https://cdn.sqhk.co/tefebenum/iMCNFiN/63234237508.pdfIn PDF document text
    • http://helplnstagramcontact6088757.com/define_narrative_poem77ktm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_60351f20bc5c7.pdfIn PDF document text
    • https://cdn.sqhk.co/wudajelu/bIhd5ig/word_cookies_strawberry_10_special_level_g.pdfIn PDF document text
    • http://amorexpo.com/89988223207l3n8d.pdfIn PDF document text
    • http://safetymirrors.xyz/weight_lifting_percentage_chart5z2h5.pdfIn PDF document text
    • http://bitjoms.xyz/74268734910pdkvx.pdfIn PDF document text
    • https://cdn.sqhk.co/jaruxabal/8Lm818g/79390889122.pdfIn PDF document text
    • http://boomerangoo.site/bosch_ts3000_parts_diagram6sneb.pdfIn PDF document text
    • http://siankaanmexico.com/what_are_the_key_elements_of_a_narrativeobvxv.pdfIn PDF document text
    • http://parhelifrl.space/vezilefebunujift7tg1.pdfIn PDF document text
    • http://khareedforosh.com/free_loan_agreement_template_ukh5var.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409992/normal_5fded77e975ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409244/normal_5fd06a92519b9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jabisuluro.epizy.com/antimicrobial_resistance_global_report_on_surveillance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91973377-db87-495b-affe-3ba299eaf1ad/rigipodonovon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d9fc9d9-a38b-42c9-b74e-486ac44bfe4a/what_is_isekai_quartet.pdfIn PDF document text
    • http://bavosezema.epizy.com/3398078667.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e106bc9-6948-45e2-b7bb-9a4fdc8152fd/32542330317.pdfIn PDF document text
    • http://jewedib.epizy.com/19682199967.pdfIn PDF document text
    • http://rirazito.epizy.com/monizuguji.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_off0000d5e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5E1 5296 bytes
SHA-256: 6f5b5ecf6d6378bfe08a7622236dc11342579569ae1b4cc520114e0dec6ec932
font_01_sfnt_off0000e802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE802 10800 bytes
SHA-256: 9921c0ab957baf081c4ab9236b237342405407385530522a1b02a045f7438beb

Open this report in the interactive analyzer, or submit your own file for analysis.