Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0fb92b11dfa3169…

MALICIOUS

PDF

75.6 KB Created: 2021-03-27 15:07:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: adcc43de9a4e874ea63e17363d102c78 SHA-1: a071810bc08fde948496e942c303bd44ca703d36 SHA-256: f0fb92b11dfa3169df9bb2c48c15a538e5fdc4673d644c9e337d354f97b2209a
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to potentially malicious domains, suggesting a link farm or phishing attempt. The heuristic PDF_SEO_LINK_FARM indicates a mass of external links, and the presence of URLs like 'xezojetit.ru' further supports this. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent, likely to trick users into downloading malware disguised as game files.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=the+amazing+spider+man+1+apk+data+download PDF link annotation
    • http://zesenadozefut.sportsontheweb.net/xizapevubojez.pdfIn PDF document text
    • http://xafesuvorolivig.scienceontheweb.net/kokadakafozufeloredof.pdfIn PDF document text
    • https://cdn.sqhk.co/noloxunipe/iYDjbhb/42311552938.pdfIn PDF document text
    • https://cdn.sqhk.co/dedesonor/chbgi2i/42904958094.pdfIn PDF document text
    • https://cdn.sqhk.co/liritefebat/eVogGNT/grand_gangster_miami_city_auto_theft_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nenuguvan/Iigmpgd/75443379430.pdfIn PDF document text
    • http://winfreeiphone.xyz/389905569707d1da.pdfIn PDF document text
    • http://tovelksa.website/cyberpunk_2020_night_city_mapa3zk3.pdfIn PDF document text
    • http://reestr.site/249312258870wns9.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/hrichjh/crackle_paint_with_hide_glue.pdfIn PDF document text
    • http://jiwabozaxexe.mypressonline.com/what_should_a_30_month_old_child_be_doing.pdfIn PDF document text
    • http://manovina.mypressonline.com/albumin_test_procedure.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_f854a6661cbc41e0872454502ec04f1b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/tatexonasipukovep.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/gmat_official_guide_2018_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/redodaxegupuduro.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/human_body_systems_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/pdf_to_word_software_converter.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/what_are_the_names_of_some_blood_thinners.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/35555941778.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/line_6_pod_ux2_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/gadgil_report_on_western_ghats.pdfIn PDF document text
    • https://92fa68c6-d088-48c5-94d9-776fe0504fc0.filesusr.com/ugd/5a053b_d51f06456087424aae84a7c79a047be2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/ziditosafogafirep.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/31985595665.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_off0000e90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90A 5580 bytes
SHA-256: 215490f462a5b0957714725c94b9dad188fbeec5e280916b95ec0b4c0dd203c7
font_01_sfnt_off0000fbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFD 10696 bytes
SHA-256: ff3cda8570c09f157f17e830ee5035c9d05478e95ef78377f02dcd3ab40f2c1c

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