Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc7f48201272f4b2…

MALICIOUS

PDF

78.7 KB Created: 2021-03-31 09:39:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: c9a4075e526c337915d2120ea1a8c7c6 SHA-1: 8d154d72afe97ead7a7bbb91cfda8c552770dea5 SHA-256: fc7f48201272f4b29b1f7842fbf29536e36f4899b70869e6594e1da602d737e6
134 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating it functions as a link farm on disposable hosting. The presence of external URIs and a visual download button suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely leading to a second-stage download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mezovuduw.ru/123?utm_term=instagram+videos+app+iphone PDF link annotation
    • http://pixidilivutep.medianewsonline.com/how_long_does_it_take_to_become_a_trustee_in_jail.pdfIn PDF document text
    • https://cdn.sqhk.co/vibifexode/A22xhaF/nodizon.pdfIn PDF document text
    • https://cdn.sqhk.co/kupejabel/bwgegiz/tepumizutomagavowe.pdfIn PDF document text
    • http://bovakepixoworax.iblogger.org/nesitifumekefurudeseve.pdfIn PDF document text
    • http://gidepel.22web.org/calculator_app_for_windows_7.pdfIn PDF document text
    • http://gemaxumaweti.22web.org/is_seafood_haram.pdfIn PDF document text
    • https://tixafaxul.weebly.com/uploads/1/3/4/3/134311963/tatajotim.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/fyMLifW/drivetime_cars_available.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/jfCwChh/poxujek.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/erdgf9H/cash_payday_loans_bad_credit.pdfIn PDF document text
    • https://xawawamofolapus.weebly.com/uploads/1/3/1/4/131436997/nekakimusu.pdfIn PDF document text
    • https://vefavufarexuba.weebly.com/uploads/1/3/4/3/134315694/jemagof.pdfIn PDF document text
    • https://wuwuleli.weebly.com/uploads/1/3/1/3/131398564/8859556.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://babefuv.epizy.com/73993925625.pdfIn PDF document text
    • http://jawegoxizifiti.epizy.com/icc_guide_to_incoterms_2000.pdfIn PDF document text
    • http://mevedokepovi.epizy.com/menu_and_recipe_cost_spreadsheet_template.pdfIn PDF document text
    • http://nabafomubibatu.epizy.com/42204093179.pdfIn PDF document text
    • http://xanivuva.epizy.com/93566271293.pdfIn PDF document text
    • http://zosuvupetod.epizy.com/lotelesototasimegadu.pdfIn PDF document text
    • http://gupizamowakop.myartsonline.com/ian_brownlie_principles_of_public_international_law.pdfIn PDF document text
    • http://tawaxinazaka.rf.gd/minimum_spanning_tree_questions_and_answers.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_off0000f52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF52B 5336 bytes
SHA-256: b384258ce8c4703213f4811c7cb73091abe178fa4818c13f6558092c682e9893
font_01_sfnt_off00010730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10730 11008 bytes
SHA-256: 3cea14301729539023de4acb7070cd66974f76231c1ebb1f42b657c84e3cc4ca

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