Malicious PDF — malware analysis report

Static analysis result for SHA-256 675461de9777d2c6…

MALICIOUS

PDF

78.9 KB Created: 2021-02-27 02:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: fff91b7848356c877cab3e1ef7035ef5 SHA-1: fffe81da2105e05acb6665559b29172cb06387ca SHA-256: 675461de9777d2c6107b680876207374f6e6115ab814658f7a001f1b623ee771
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to obscure the true malicious destination. The primary URL, https://xezojetit.ru/award?keyword=2001+dodge+ram+3500+owners+manual+pdf, suggests a lure related to a specific owner's manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.

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://xezojetit.ru/award?keyword=2001+dodge+ram+3500+owners+manual+pdf PDF link annotation
    • http://tebaxedo.22web.org/zaxevetegozazodinolet.pdfIn PDF document text
    • https://kukanoli.weebly.com/uploads/1/3/4/6/134641169/3685221.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/Ojajyjd/hd_wallpapers_1080p_for_laptop_car.pdfIn PDF document text
    • https://cdn.sqhk.co/nurijodefa/ageUtGW/75850922283.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/xupitibe.pdfIn PDF document text
    • https://wosubazaroden.weebly.com/uploads/1/3/0/8/130813518/gixigigewixawe_vugovikipikin.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/jfFrjfb/tadegekinapej.pdfIn PDF document text
    • http://xiwasaruv.66ghz.com/amazon_kindle_d00901_wont_charge.pdfIn PDF document text
    • https://diwijavel.weebly.com/uploads/1/3/4/6/134691177/1810109.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/87006574025.pdfIn PDF document text
    • https://warevinigipa.weebly.com/uploads/1/3/4/8/134898994/ladete-levig-sutepujamo-kotid.pdfIn PDF document text
    • http://joxufovogikera.iblogger.org/cheat_droid_pro_root_only_apk.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/under_the_banner_of_heaven_movie_trailer.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/blendtec_total_blender_warranty.pdfIn PDF document text
    • http://pazifelurup.medianewsonline.com/indian_law_books_malayalam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xadamun.epizy.com/citation_style_guide_examples.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/samsung_grand_prime_pro_battery.pdfIn PDF document text
    • http://zifawikixeliba.epizy.com/zipug.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/the_wahls_protocol_book.pdfIn PDF document text
    • http://vidodelogedotub.epizy.com/50_essays_6th_edition_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE380 5972 bytes
SHA-256: 6613c4983f369c31b7f4a523b4021b09ace0dfa424c79b68375b7e66923f8210
font_01_sfnt_off0000f7d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D3 2268 bytes
SHA-256: 2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349
font_02_sfnt_off000101e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E6 13964 bytes
SHA-256: 90b6b276c6d9a396a8c7b8045d9d1e2d5d5093acdaedf0f923c20cad29dbda00

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