Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f087081cbf0746…

MALICIOUS

PDF

82.5 KB Created: 2021-04-04 05:50:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9203aac5ad213373b228975b04735c5c SHA-1: 19e17fe830dcaddc55cbcbfaf6ce4076cd292e30 SHA-256: f7f087081cbf0746ff310687c0e9edcde154756c96a2b92e776969538914ac67
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 0.9998

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://dafemum.ru/strik?utm_term=huck+finn+quotes+about+the+river PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420587/normal_602c45ed422fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383918/normal_5fe0fadbafa18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379363/normal_60256c3671475.pdfIn PDF document text
    • http://tezafowula.iblogger.org/toyota_camry_xse_2019_price_in_nigeria.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459482/normal_5fceb2fc6f6ec.pdfIn PDF document text
    • http://umkatrade.ru/xuwuvunamewopyh1.pdfIn PDF document text
    • http://vienvozvrat.site/which_harmony_remotes_are_compatible_with_the_hubvtito.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/600056cd-2a82-41db-afd6-a1744156a666/farmer_boy_laura_ingalls_wilder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c40a0656-9f94-4c33-8046-07340eb2b5b5/how_much_does_it_cost_to_get_your_exhaust_welded.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed1f51b7-57b5-48bb-8f91-1c2bb380296d/dan_brown_books_movies.pdfIn PDF document text
    • http://fopuzotetowux.rf.gd/the_new_catholic_answer_bible_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34125f60-c099-41b8-972e-156764c6a301/how_much_do_window_cleaners_make_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48ef70f6-550a-4565-bf4d-338fd6090c34/fly_fishing_lures_for_saltwater.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/78696148661.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/731e5412-c048-4940-9f11-b03b559d8446/butenafokij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02b557ff-0a8c-48bb-89dd-7a9a6b070b81/are_michigan_covid_numbers_increasing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5abe985c-fbe8-4069-bcd9-0346b87bb88f/how_many_books_chapters_and_verses_in_the_bible.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/aankhon_ki_gustakhiyan_video_song_hd.pdfIn PDF document text
    • http://pojesonedako.epizy.com/pefoxijalokezuse.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_off0001045d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1045D 5288 bytes
SHA-256: bf376e51b6c9df02d4753fb310a7eb7763f1c3480a8fded5f0f4bcc6df8cd5e8
font_01_sfnt_off00011665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11665 10752 bytes
SHA-256: f29f9b04e667d15793eb2e873a2cefda13ae97093edbc614374b261e2d18bb1b

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