Malicious PDF — malware analysis report

Static analysis result for SHA-256 14deb4f9da986735…

MALICIOUS

PDF

75.3 KB Created: 2021-03-06 18:28:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b72b6204a7e726f98b0581494ca9a340 SHA-1: 0f1bc245fb8cf614d95390a0f5feabe99ac6e2a9 SHA-256: 14deb4f9da9867353caa15820286d078ddd4a20cfbebd2b23fd4440947a3ae11
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, with one pointing to 'dugedepap.ru', suggesting a redirection or phishing attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's primary purpose is to host a large number of links on disposable domains, likely to manipulate search results or distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/wb?keyword=eva%20luna%20montaner%20y%20camilo%20echeverry%20son%20novios PDF link annotation
    • http://xulubapatoso.scienceontheweb.net/kuravube.pdfIn PDF document text
    • http://uggi-ugg.com/zunun8pacu.pdfIn PDF document text
    • http://nunobuzipame.medianewsonline.com/67293335221.pdfIn PDF document text
    • http://pavawafupef.66ghz.com/spreadtrum_android_usb_driver_32_bit.pdfIn PDF document text
    • http://dfwshootersupply.com/titetuxizozivizaxo293f.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/how_to_brighten_a_dark_paneled_room_without_paint.pdfIn PDF document text
    • http://jutovutivori.22web.org/rolivil.pdfIn PDF document text
    • http://pedagaro.22web.org/zasanaxijo.pdfIn PDF document text
    • http://saudiautoinsurance.com/kimokuzowadabakewixirqy0l5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vepejiwuj.rf.gd/vovilapuvawoxuzumoz.pdfIn PDF document text
    • http://lusiromipu.epizy.com/intex_saltwater_system_manual_above-ground_pools.pdfIn PDF document text
    • http://tavawefojob.epizy.com/33883423515.pdfIn PDF document text
    • http://vigiraporonom.rf.gd/zarom.pdfIn PDF document text
    • http://jamujufumazuwir.rf.gd/34241209389.pdfIn PDF document text
    • https://d03ec42c-8b93-48d3-a61e-9aee396c0db4.filesusr.com/ugd/1e557c_87bec715236549e5844d5ed8a61a6c6f.pdf?index=trueIn PDF document text
    • http://tukorokibenej.epizy.com/samsung_galaxy_a10e_unlocked_amazon.pdfIn PDF document text
    • http://nuwixunosozi.epizy.com/philips_lifeline_cost_per_month.pdfIn PDF document text
    • https://1fc3e790-19e1-43b7-bae7-d09a953f51fe.filesusr.com/ugd/2c608b_9c8f08f631f64aa8b97cd5ee070b4ff2.pdf?index=trueIn PDF document text
    • http://pujakel.rf.gd/fenix_2_twitter_apk.pdfIn PDF document text
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_309763df09bd456e9162ccca138aed8a.pdf?index=trueIn 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_off0000e486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE486 5156 bytes
SHA-256: 7c841e851b5b80b93ac64c8f57ddca3e609006f754355654d1674aa8a373f9e6
font_01_sfnt_off0000f5f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F5 12092 bytes
SHA-256: a43e13164c2164d294d5d38981a173bc5fe1c048ff21c55b41643d81d2ccd0ef

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