Malicious PDF — malware analysis report

Static analysis result for SHA-256 134f7341927518ac…

MALICIOUS

PDF

76.7 KB Created: 2021-04-30 23:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 02fe303025e33a9d741cb5b538e786df SHA-1: 8ff0a8c6fbd4a824c8d7bae306935a8610cd9b9d SHA-256: 134f7341927518ac16cf0d48998741d4fc63cd923bd9a33fe5ca13312bfe2d52
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-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://leonvi.ru/strik?utm_term=how+to+put+fishing+line+on+a+zebco+slingshot PDF link annotation
    • http://rijupoxog.22web.org/anglican_xhosa_hymns_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461516/normal_5fd315dabc352.pdfIn PDF document text
    • http://gatigade.iblogger.org/52442613601.pdfIn PDF document text
    • http://storedubai.shop/kekabolisesajl69m1.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/subawowxxayf.pdfIn PDF document text
    • http://bioforce-co.site/worksheet_math_grade_4_multiplication2mcgf.pdfIn PDF document text
    • http://dirtygirl.fun/el_moasser_math_1st_secondary_guide_answers3miuo.pdfIn PDF document text
    • http://fitness1.space/metodo_anticonceptivo_ritmoaxfsq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368999/normal_6059ac1ca63c7.pdfIn PDF document text
    • http://rinetiwirejux.iblogger.org/46997250371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425229/normal_6067e1a94666f.pdfIn PDF document text
    • http://parralax.net/57786471797my04j.pdfIn PDF document text
    • http://arendagg.xyz/razufenazinizorijizanesq7km.pdfIn PDF document text
    • http://wutukuk.22web.org/the_complete_english_grammar_course_-_perfect_your_english_free_download.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/d8b1677e-a565-4ff4-8b88-903fd6dd16f3/any_nail_salons_open_late_near_me_on_thanksgiving.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b2dcc70-f19a-461c-98bd-d5ea47716953/nizutapobenuwiguv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f668144-d8d4-4bbe-976c-c6d86176a477/33487011220.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/adventure_time_island_song_remix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eac1a00f-52db-40cf-a477-e8ca61e66f63/acer_aspire_m3470g_cpu_upgrade.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/kefojurixolesijarose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cfcee15-da42-416e-b3fd-2cd046b65f7c/nubidemetezefodare.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/rrb_alp_result_2018.pdfIn PDF document text
    • http://goxabobuti.rf.gd/14419767438.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_off0000edae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAE 5424 bytes
SHA-256: 6d81a2031d09416504e6e941086221d32d295d8237f02f0ef775ef2f58082973
font_01_sfnt_off00010041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10041 10780 bytes
SHA-256: 4f09bf5c351302b6a5426d0253b55cdf3127e2bd61e4d8bc3b7cda42f4f586de

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