Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe06729a85220ff…

MALICIOUS

PDF

70.8 KB Created: 2021-04-07 00:38:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7aec85aa7bf8c367ae7ae70109e28a9a SHA-1: edac7e3273e69e3f15d82d9eac7e9c001b1fb683 SHA-256: 6fe06729a85220ff9fb6d16ca5b42473ddbfc7a99dfab7692940166ed112131b
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, appears to be a lure for streaming content, suggesting a phishing or malware distribution attempt. The presence of external URIs indicates the document's intent to redirect the user to malicious sites.

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://seumenha.ru/wix?keyword=regarder+the+tudors+en+streaming+vf+hd PDF link annotation
    • http://favarivizuna.medianewsonline.com/weight_conversion_kg_to_stone.pdfIn PDF document text
    • https://cdn.sqhk.co/bamosabubesi/Dihgggj/dolunuwowot.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwoxegolewa/YjgVQdb/11301355974.pdfIn PDF document text
    • http://claire-irk.ru/2564442640dzvvk.pdfIn PDF document text
    • https://cdn.sqhk.co/mewovegid/REjbHij/jiniluze.pdfIn PDF document text
    • http://remudotufed.22web.org/vefov.pdfIn PDF document text
    • http://copyrightproblem.com/sow_what_journey_in_a_bagww36o.pdfIn PDF document text
    • http://boothattendant.com/how_to_use_sodastream_source_element8tibg.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/VMjeThc/kudopibo.pdfIn PDF document text
    • http://padaxopawudu.iblogger.org/star_trek_discovery_season_3_episode_8_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwoxebu/Pcriiha/mulufeme.pdfIn PDF document text
    • https://cdn.sqhk.co/gozolijitow/hbYhjHN/10031927702.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvitatutuv/gieig96/battle_of_the_bulge_movie_tank_song.pdfIn PDF document text
    • http://digitalmedialit.com/google_play_games_free_pc74bdi.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/icjhhhj/vufelejajativatuk.pdfIn PDF document text
    • https://cdn.sqhk.co/ramawuvade/iGVEPWg/kuxaruki.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/gqjjEhd/wewakikopodebim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pefimubis.myartsonline.com/tunugubekixapawoparo.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/mabolil.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/area_and_perimeter_worksheets_3rd_grade_free.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/gleadell_market_report.pdfIn PDF document text
    • http://fotizojorirepel.onlinewebshop.net/zigexok.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_off0000d591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD591 5356 bytes
SHA-256: 54cb84fb4f75c4c9e4705c63da36af03a54d6f02cdbdeb1072c7f013c5584164
font_01_sfnt_off0000e7af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AF 11452 bytes
SHA-256: a1e24c089f7fda09a32daa11436db18bae4abebf61d798458656652cf96ddfce

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