Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c7bf50f43615b9…

MALICIOUS

PDF

82.0 KB Created: 2021-03-09 12:20:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0493388f566aab114cf280c87bd23995 SHA-1: 9b5714b915faa2e10e868d3bc89b9271c9b122ef SHA-256: 02c7bf50f43615b98f0c7fe3fbc68eb194154a60f6584f8349b0f0fa00dc2448
126 Risk Score

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to 'baarspo.ru', suggesting a phishing lure related to driver's licenses. The document's structure and numerous links indicate it functions as a link farm designed to redirect users to potentially 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://baarspo.ru/wb?keyword=mississippi%20state%20driver PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421462/normal_602ee25e47b89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416144/normal_60128b817d024.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/the_blame_game_tour_dates.pdfIn PDF document text
    • https://jadusulad.weebly.com/uploads/1/3/4/7/134764450/bopami-lemexagitobiter-jixemi-fapugejuvanor.pdfIn PDF document text
    • http://lamejix.scienceontheweb.net/what_it_feels_like_in_heaven_song.pdfIn PDF document text
    • https://duvigefotazepex.weebly.com/uploads/1/3/0/7/130775674/4520212.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461219/normal_5fff99a9beb1a.pdfIn PDF document text
    • http://bibivire.mygamesonline.org/kevaxejad.pdfIn PDF document text
    • https://fuxugikitoze.weebly.com/uploads/1/3/1/0/131070560/lovilos_gujoxo_sivemif.pdfIn PDF document text
    • https://xidoxuzi.weebly.com/uploads/1/3/4/7/134707988/67eff13bdbb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378171/normal_6041fd0e2e0a8.pdfIn PDF document text
    • http://remont-kholodilnikov.website/kaplan_cfa_notes0gotj.pdfIn PDF document text
    • http://stixlife.info/whiteboard_animation_software_for_pc_freelmb3j.pdfIn PDF document text
    • http://bigpleasure.ru/can_iphone_read_out_text_messagesi2lv3.pdfIn PDF document text
    • http://yesstore.pro/wexaliwineliretijajimwpu2v.pdfIn PDF document text
    • https://jakugogafezokev.weebly.com/uploads/1/3/1/4/131437362/68c999.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/0ca726b3-1d28-4bba-a906-2bd211449451/lawiwen.pdfIn PDF document text
    • http://nedizilunok.myartsonline.com/gidakufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e02d2a78-dcf6-4cfd-8b5b-79855556d9cb/kigimarefe.pdfIn PDF document text
    • http://duxegejuw.atwebpages.com/mosikikinapodab.pdfIn PDF document text
    • http://nixevafuzija.epizy.com/moment_convert_to_iso_format.pdfIn PDF document text
    • http://nimozan.epizy.com/chakram_hd_movie.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_off0000ff9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9B 5248 bytes
SHA-256: 81b2ea08c471dbcbf3f6a55a107635c5d76636592f3939b9bd367d836cc1d598
font_01_sfnt_off000111a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A2 11560 bytes
SHA-256: 56ff37c932ace0d1d605c59c4c95ebd9f1eec2a85caf4fa23deadaacf6f869ac

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