Malicious PDF — malware analysis report

Static analysis result for SHA-256 096edaadb7168aff…

MALICIOUS

PDF

77.7 KB Created: 2021-04-22 01:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 443f1b1dc8a5a3d244adc381f36e9e36 SHA-1: 1da26b4a1e9b70f1b0f8ab3b5824908fda9f2faf SHA-256: 096edaadb7168aff4c42b5248eaed03d7a8fe1a9b590482c2bc5493833423ae8
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 0.9998

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://crophysi.ru/strik?utm_term=langston+hughes+quotes+on+racism PDF link annotation
    • https://cdn.sqhk.co/romekeka/0vibTgd/6952183650.pdfIn PDF document text
    • https://pafabori.weebly.com/uploads/1/3/5/3/135317136/8826006.pdfIn PDF document text
    • https://junimadegerozo.weebly.com/uploads/1/3/4/0/134096607/jefewakemojuluw.pdfIn PDF document text
    • http://geleostone.online/applied_numerical_methods_with_matlab_for_engineers_and_scientists_third_edition_solution1e4r1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499334/normal_606ab6922a8d9.pdfIn PDF document text
    • http://naturka.space/conalep_alimentos_y_bebidas_cdmx7orit.pdfIn PDF document text
    • https://cdn.sqhk.co/naxupowu/jjjggeT/driving_school_2017_mod_apk_2020.pdfIn PDF document text
    • http://sochi2026.com/bamogigepanofiji2565k.pdfIn PDF document text
    • http://grenkasalo4.xyz/bootloader_unlock_apk_motorolaiidbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475375/normal_603844582b43a.pdfIn PDF document text
    • http://klyshsheff.xyz/209673275159iiuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445337/normal_606bbc715a23b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370270/normal_5ffddb981a47b.pdfIn PDF document text
    • https://tazabojadikeze.weebly.com/uploads/1/3/4/6/134648043/rajeforusururo-zozepuvimipix-vibibasako-kunomoxexitexo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_8fd7f9cc48ce48328ce7c9f1d047ce6e.pdf?index=trueIn PDF document text
    • https://5c09c65f-4728-49e3-9562-8692e696fc4f.filesusr.com/ugd/32acb1_96737034cd644d30b4f462d7985bf71b.pdf?index=trueIn PDF document text
    • https://3857ddc0-2b33-46ba-b4a8-ebef9b167687.filesusr.com/ugd/5cc0d5_959444cb7afc45099dd5ffdad1ce7a78.pdf?index=trueIn PDF document text
    • http://suwepedufaresi.epizy.com/carfax_history_report_free.pdfIn PDF document text
    • http://zadosuwiwebuw.epizy.com/attached_file_online.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_off0000f3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C3 5248 bytes
SHA-256: 0c2b850ee4b826f4b938948cdb2ec1a20f115547c579e7743219bafaba213a05
font_01_sfnt_off0001057a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1057A 10664 bytes
SHA-256: 0d3828ebba1e214884679d9c9bfe5ebde9755bb655512ee9a7cd81e9caa6bce8

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