Malicious PDF — malware analysis report

Static analysis result for SHA-256 292d9890e14eee6c…

MALICIOUS

PDF

77.4 KB Created: 2021-03-09 10:07:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 496ab817ff87968b9c0e5d214b955a26 SHA-1: 1a09a34a3d80a4210c300405a19b974089778510 SHA-256: 292d9890e14eee6ce3d047daa2a3c64ebef471312f8e1943496b82b461313401
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 0.9991

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://baarspo.ru/123?utm_term=battlefield+v+crack+only PDF link annotation
    • http://shoop-ff.ru/arthur_schopenhauer_the_world_as_will_and_representationjj4si.pdfIn PDF document text
    • http://ses-paypal.com/36395830446ho2ds.pdfIn PDF document text
    • http://yblda.fun/83272128589gd8q3.pdfIn PDF document text
    • http://vnatural.space/does_netflix_have_kiki_delivery_servicezczx1.pdfIn PDF document text
    • http://ehaberdevlet.com/dibufatarakawakifijuzeg0q5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386363/normal_60264be210146.pdfIn PDF document text
    • http://reform-st.ru/6008600897wohbl.pdfIn PDF document text
    • http://delaem-sami.online/gemajagaxomudevewabakumdfww.pdfIn PDF document text
    • http://operationhomeplate.com/assure_learning_modelx8xsa.pdfIn PDF document text
    • http://everydays.space/arcadia_sliding_door_rollers7zqay.pdfIn PDF document text
    • http://dress-russia.ru/dd_5th_edition_character_sheet_exceliixc4.pdfIn PDF document text
    • http://sandwichhq.club/35596023129q12n3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470523/normal_5ff76b298af7c.pdfIn PDF document text
    • http://instapriz.website/bane_chronicles_bookd8s7c.pdfIn PDF document text
    • http://frukt.fun/bharathiyar_kavithaigal_book_free50dcs.pdfIn PDF document text
    • http://investmag.org/228619441466jh2q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/lwarb_brawl_stars_mod_apk.pdfIn PDF document text
    • http://sijomowekiri.epizy.com/libero_tracking_sheet_mshsl.pdfIn PDF document text
    • http://zelobiliteriwe.rf.gd/animal_crossing_city_folk_wii_u.pdfIn PDF document text
    • http://kibejulega.epizy.com/90524886740.pdfIn PDF document text
    • http://dilowopuvuzi.rf.gd/defined_spreadsheet_in_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/apple_keynote_presentation_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/78785404769.pdfIn PDF document text
    • http://nufewaruxemo.epizy.com/exceptional_c_free.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/darkshore_leveling_guide.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_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 5112 bytes
SHA-256: c100bfb2c387c6d642e66aca13cc49029399fa3849ce48ae4c5751570be80945
font_01_sfnt_off00010270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10270 10968 bytes
SHA-256: d1b6e23c141de3fb58b38b9f9a81842e5249935a3d114d2362ebce2163e441ca

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