Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f4243616d07011…

MALICIOUS

PDF

90.0 KB Created: 2021-04-08 09:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 971b93cf07a8bda67064baf28c689eef SHA-1: 14458e3188cacf387ed9a65268fbaa6f779f34ea SHA-256: e1f4243616d07011e659f00aa0551424056735b5769276075eea07e021108755
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://ponafet.ru/wix?keyword=cartel+de+los+sapos+2+cast PDF link annotation
    • https://puxokobipo.weebly.com/uploads/1/3/4/5/134524361/banekoxo_zarujuvebatof_loviwolavopeka_baxutofi.pdfIn PDF document text
    • http://7gusevshop.space/xakirifuwibi6vlfo.pdfIn PDF document text
    • https://danuredotur.weebly.com/uploads/1/3/2/8/132814989/wemijelagara-tikusoneruv-pirazaku-wipalu.pdfIn PDF document text
    • https://pudorexejuvaw.weebly.com/uploads/1/3/1/4/131455832/mimugeged.pdfIn PDF document text
    • http://omshop.space/were_going_on_a_bear_hunt_lesson_planny4rv.pdfIn PDF document text
    • http://fuxutigox.mypressonline.com/76442667583.pdfIn PDF document text
    • http://sutufobu.iblogger.org/agency_cost_in_financial_management.pdfIn PDF document text
    • http://tarigutese.mygamesonline.org/arquitectura_sostenible_definicion.pdfIn PDF document text
    • https://torosiwetub.weebly.com/uploads/1/3/5/3/135351177/daxugopisikoj-pevuk-gututogusefefi.pdfIn PDF document text
    • http://dujosibixejo.22web.org/editable_2020_calendar_template.pdfIn PDF document text
    • http://nextauto02.ru/94800863092pu7mv.pdfIn PDF document text
    • http://zathkatow.xyz/wow_computer_specs_requiredx6mgt.pdfIn PDF document text
    • http://zisumabegol.22web.org/beyond_the_aquila_rift.pdfIn PDF document text
    • http://xifadezuzurap.medianewsonline.com/fomawerovir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfe23df7-5954-45d6-b11a-d9883b5d0a49/belkin_n150_wireless_modem_router_setup.pdfIn PDF document text
    • http://fupizasatekuw.rf.gd/25281915387.pdfIn PDF document text
    • http://purewowesajumu.myartsonline.com/nijanifigizigo.pdfIn PDF document text
    • http://merigodivibamot.rf.gd/apostrophe_worksheet_with_answers.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/arduino_basic_programming_language.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02a443c8-ee30-4198-8f12-c67898198e82/hp_deskjet_3050_driver_download_windows_10.pdfIn PDF document text
    • http://rajafidaforuzav.epizy.com/how_to_connect_record_player_to_computer.pdfIn PDF document text
    • http://peforuk.rf.gd/how_to_use_stihl_autocut_c_26-2.pdfIn PDF document text
    • http://tifijawubizomed.epizy.com/guguwumijukaxevuz.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD8 5104 bytes
SHA-256: c8753112b61f29014297ba3ad55a4e6ef41fb4cef5be8222c343af68a9cb8e5a
font_01_sfnt_off00012e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E40 13864 bytes
SHA-256: c871c16a43f85c2690f6ecb139a19d0e1f40f8247435e65b28bd691589ab385e

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