Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe786d69cb10eb4e…

MALICIOUS

PDF

73.6 KB Created: 2021-03-07 08:16:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3c18f4a82a4690ed073796506a3ab4ca SHA-1: 900e3ee043c42e1b827845a9c3680215d7a085c6 SHA-256: fe786d69cb10eb4ee8ac081f19360311544495b691c7e23fc2c2c310cb3957cc
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 0.9991

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://lozipotod.ru/wix?keyword=cadc+benton+head+start PDF link annotation
    • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/d59dea6d03fc4.pdfIn PDF document text
    • https://gunubamevozapub.weebly.com/uploads/1/3/3/9/133997290/6590864.pdfIn PDF document text
    • http://vevufilusik.scienceontheweb.net/the_giver_ch_6_summary.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/song_to_remember_mean_median_mode_and_range.pdfIn PDF document text
    • http://dovulup.iblogger.org/zivapajufepokurofeviwe.pdfIn PDF document text
    • http://sosutisokalelul.iblogger.org/xabixovedadaguwoli.pdfIn PDF document text
    • http://datujizid.iblogger.org/birthday_card_vector_images_free.pdfIn PDF document text
    • https://bumarotijij.weebly.com/uploads/1/3/4/6/134688095/gudixeromesavapaba.pdfIn PDF document text
    • http://numusuri.22web.org/pitching_in_business.pdfIn PDF document text
    • https://zowobisa.weebly.com/uploads/1/3/5/3/135313501/banomojasobonegoro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vixabediwudofi.epizy.com/69526141918.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dee36f0-3337-4ef3-9a01-7012b3669ec7/79149839596.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99eba5bc-2f43-4bb8-aeeb-6497279cf794/2009_harley_davidson_sportster_repair_manual.pdfIn PDF document text
    • http://benamow.myartsonline.com/45383894048.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22d24b1e-1b6f-4527-a6ae-f0ff735bf021/gesolosanukex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59756c6c-6163-4690-b34a-8eb038282e91/vedexoz.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/larelofafelebarafewedevir.pdfIn PDF document text
    • http://pavebutom.epizy.com/what_color_is_vw_transmission_fluid.pdfIn PDF document text
    • http://zorijefugixor.atwebpages.com/ridikedopamonozaluf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c968c4d0-c2dc-4839-bf0e-424fe2cd5940/22876713242.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/zejufilotaf.pdfIn PDF document text
    • http://refedeto.epizy.com/android_smart_phones_under_50000.pdfIn PDF document text
    • http://futakanawus.onlinewebshop.net/lenovo_thinkpad_t430_car_charger.pdfIn PDF document text
    • http://kunivoji.epizy.com/marathi_english_barakhadi_app.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_off0000e2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BE 5040 bytes
SHA-256: 464cbc6908133bd93e17e8c4725aa0b90979acb05b992862dbba8119450d4f1b
font_01_sfnt_off0000f3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CE 10380 bytes
SHA-256: 1c0f3a56632223f1ffd6a3ae594cd63cdf7570510083607315f47f1eca15494e

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