Malicious PDF — malware analysis report

Static analysis result for SHA-256 60c0a63dc5fed65a…

MALICIOUS

PDF

111.8 KB Created: 2021-03-03 05:11:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e9a0a8c5d4918cc85c6783aa2a0194b2 SHA-1: 7cb91b39be4b0fdae74c776198e28ba89c6a35ab SHA-256: 60c0a63dc5fed65af46246c57f4d1ad72791459c668362d3a5f437e311f49ea4
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The embedded URLs, such as 'https://xezojetit.ru/123?utm_term=the+notebook+script+download+in+hindi+filmyzilla', are likely used to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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/123?utm_term=the+notebook+script+download+in+hindi+filmyzilla PDF link annotation
    • https://cdn.sqhk.co/kixobaza/ie1gehf/bunibuparaposexaj.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/atomic_physics_download.pdfIn PDF document text
    • http://br1.red/zususvlerd.pdfIn PDF document text
    • http://yourlivehelp.com/drawing_on_the_right_side_of_the_brain_courset7ijc.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/tokyo_ghoul_re_call_to_exist_character_customization.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/hihftgf/bujasubowilajeworibusukig.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/how_to_find_windows_8_product_key_on_acer_laptop.pdfIn PDF document text
    • https://nigovazimosa.weebly.com/uploads/1/3/4/6/134636686/3480419.pdfIn PDF document text
    • https://cdn.sqhk.co/nufanusiki/bBaibhg/fitanukenozosijemegowaga.pdfIn PDF document text
    • https://vavaterojitenoj.weebly.com/uploads/1/3/4/8/134898986/tiralom.pdfIn PDF document text
    • http://sun-italy.space/miller_heiman_blue_sheet_download1b01r.pdfIn PDF document text
    • https://cdn.sqhk.co/tewisifupib/jjfhihb/nipizosolijawiwo.pdfIn PDF document text
    • http://fodokimi.22web.org/kindle_book_audio_reader_android.pdfIn PDF document text
    • http://pifovabu.getenjoyment.net/juzezuwirugudaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://jotoxen.epizy.com/beatles_greatest_hits.pdfIn PDF document text
    • http://lipewolitaden.epizy.com/23841850927.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_off0001574c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1574C 5792 bytes
SHA-256: 3ebaa73ec04b00951d32e2f49985342e45b292f36cf4ffb8f4a4c246be42c6eb
font_01_sfnt_off00016af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AF2 12128 bytes
SHA-256: 2bcf958dd6c7a4b68ab76bf6d3a4e4b2253d65abaa616dc9f93407dcfcfd037a
font_02_sfnt_off000193c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x193C0 8992 bytes
SHA-256: 7724a9164fa2ec2b3586e0bdaa84c912bcfe787924cfff40e9a43178ae01b75e

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