Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f06036dd69461c5…

MALICIOUS

PDF

77.1 KB Created: 2021-03-14 15:26:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: df60e26b57284c77255df1c06c814d47 SHA-1: bcde44283e978026f9878763c7981fea28044f89 SHA-256: 0f06036dd69461c5818d6455a145b5b3308f44e6f48d81a670497b752f091859
126 Risk Score

Malware Insights

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

This PDF document is classified as malicious by ML and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, with a primary lure pointing to 'https://resalured.ru/strik?utm_term=12+week+5k+running+program+for+beginners', suggesting a social engineering attempt to redirect users to a malicious site. The document's structure and the presence of many links on disposable hosting further support its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/strik?utm_term=12+week+5k+running+program+for+beginners PDF link annotation
    • http://natgood.space/paferexy3tlx.pdfIn PDF document text
    • http://sodaapp.pro/child_couple_dance_videoachjv.pdfIn PDF document text
    • http://suzupuwejal.mygamesonline.org/73203288075.pdfIn PDF document text
    • http://lodubesemo.iblogger.org/able_2019_calendar_template_word.pdfIn PDF document text
    • https://cdn.sqhk.co/tititafoza/XGhcTHw/dewudava.pdfIn PDF document text
    • https://cdn.sqhk.co/mosepoxik/icibgj6/police_hooter_sound_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/IEOgdjf/autocad_3d_bend_pipe.pdfIn PDF document text
    • http://meetsoda.pro/60035087783ttuee.pdfIn PDF document text
    • http://nadipewin.mywebcommunity.org/tasofo.pdfIn PDF document text
    • http://wikatugakuvifi.iblogger.org/jamegowemibarawitaj.pdfIn PDF document text
    • http://zatoboyvibor.fun/free_slots_download_no_internetznc0g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://daxojit.epizy.com/70202188820.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/tibubegopirafenapozigob.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/41294780596.pdfIn PDF document text
    • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_1be31df8cc4044beba01f25a116c265a.pdf?index=trueIn PDF document text
    • https://d427386d-3434-45d9-8802-370857a594f4.filesusr.com/ugd/accd1f_c339baa5eec04f3a800707047ce2d877.pdf?index=trueIn PDF document text
    • http://ribezewipuzez.epizy.com/birthday_gift_certificate_template_free.pdfIn PDF document text
    • http://vefovax.rf.gd/how_to_install_printer_driver_in_windows_7_step_by_step.pdfIn PDF document text
    • http://duribolatajofa.atwebpages.com/1088337625.pdfIn PDF document text
    • https://696f1bd8-06c3-47a7-a8f7-e83e17ec8d18.filesusr.com/ugd/5ad03d_d83bf148f86c42539aeb88cef61b7193.pdf?index=trueIn PDF document text
    • http://tibamupebunod.atwebpages.com/baba_yetu_satb.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/what_best_describes_greek_religion.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_off0000ed7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7B 5700 bytes
SHA-256: 15c42d1f78cd6e44db30428eab782456657df9a8f627d941b8afc6c147df0be7
font_01_sfnt_off000100ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100EF 10552 bytes
SHA-256: eeba14a9d0a640b4e1808a9a8c260c0ba928e327a9a249e1f2c6ba779aeca643

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