Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a82c98716da52d…

MALICIOUS

PDF

86.6 KB Created: 2021-05-10 17:51:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 24421d9331a073715b3d426406268344 SHA-1: 9b0d9fe683bc18917197581a838652fcfc663766 SHA-256: c0a82c98716da52dbef06b423ad9557e8f76d39a46c3b13fd82df2abec515172
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The document body, though heavily obfuscated, contains text related to a search query, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://xezojetit.ru/strik?utm_term=who+is+the+best+beatles+song PDF link annotation
    • http://sifuzifixezija.medianewsonline.com/xazowizuned.pdfIn PDF document text
    • https://cdn.sqhk.co/funuwovo/c0gftJA/nefezojadudesabamub.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/biblical_timeline_chart.pdfIn PDF document text
    • http://wozovumorawoka.sportsontheweb.net/adjective_worksheet_for_grade_7.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutowede/zjjjfR3/adventure_capitalist_cheats_2019_pc.pdfIn PDF document text
    • http://xokebidukefu.getenjoyment.net/53337658361.pdfIn PDF document text
    • http://helpverifybadges.com/book_summary_example_third_gradevpi1q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494893/normal_5fc70f4b93e6a.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/ahhihia/85314057848.pdfIn PDF document text
    • http://puwinowelin.medianewsonline.com/united_nations_millennium_development_goals_2020.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/9743870217.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_60342897caf27.pdfIn PDF document text
    • http://mostovaya.pro/54024375280gsv95.pdfIn PDF document text
    • http://rkconstructionsucks.com/codes_for_superhero_tycoonradsr.pdfIn PDF document text
    • http://begetus11ppz.xyz/cdot_roadway_design_guidefb0vq.pdfIn PDF document text
    • http://usersonlineguardingsettings.site/winitujerofexmdby3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_600fa0210b7f8.pdfIn PDF document text
    • https://cdn.sqhk.co/junulevi/1haUujd/carrageenan_vegan_uk.pdfIn PDF document text
    • http://mikenitoxa.22web.org/79116199467.pdfIn PDF document text
    • http://tobaliwono.mygamesonline.org/victoria_bc_street_map.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450504/normal_5fc7663bd37f9.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/vibalaxijolorifuwom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://powagamojij.onlinewebshop.net/arabic_to_english_meaning.pdfIn PDF document text
    • http://mutiwudixoni.rf.gd/who_is_playing_queen_elizabeth_in_season_4_of_the_crown.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_off00010946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10946 4792 bytes
SHA-256: 111fcca54ec988ec3cd72aa69acd0e76344d6720ff381471a73067c121054574
font_01_sfnt_off00011991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11991 10804 bytes
SHA-256: a643771e1d01a16acda43fe2b727afb3c56f06cdc7a8fc92d82d8c3aee2ee737
font_02_sfnt_off00013e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E62 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34