Malicious PDF — malware analysis report

Static analysis result for SHA-256 5269bf9341503665…

MALICIOUS

PDF

80.3 KB Created: 2021-03-16 06:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9bbc2d93f81e8724b9f322080f295e9a SHA-1: 1bd78453776c7204f450359db77fceb1c3a6ec31 SHA-256: 5269bf9341503665239a4c6c2611f7af243ad7d9dc01a034e5138ae45466dfd7
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 0.9995

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://pelibifir.ru/aws?utm_term=keurig+2.0+k400+price PDF link annotation
    • http://proflist-barnaul.ru/real_gangster_vegas_crime_game_mod_apk5ac90.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/81255448597.pdfIn PDF document text
    • http://everydayy.fun/36759749703mdgmo.pdfIn PDF document text
    • http://mavpa.fun/69094240391y622x.pdfIn PDF document text
    • http://afracheat5.xyz/323955347076nk2b.pdfIn PDF document text
    • http://trackcreditscore.info/introduction_to_data_science_textbook7p1id.pdfIn PDF document text
    • http://shtancircul.site/34402507694fd73p.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/hlpKzih/tivelolasa.pdfIn PDF document text
    • http://rat-red.space/how_to_program_rain_bird_esp-rzxbx8de.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/TLRYQiG/sprinkle_islands_games_download.pdfIn PDF document text
    • http://mmamba.ru/what_plants_are_edible_in_michiganlw2r1.pdfIn PDF document text
    • http://bio-ita.fun/princess_3_old_bridge_road_nelsonxi8gf.pdfIn PDF document text
    • http://dashcamtopbest.com/solve_the_inequality_express_the_solution_set_in_interval_notation_and_graph_it59tgb.pdfIn PDF document text
    • http://simcars.ru/pathfinder_cleric_feat_guide3gg4t.pdfIn PDF document text
    • http://airbin.top/pilutokesajopkncq.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/kedomu72zs.pdfIn PDF document text
    • http://creamwalls.space/92956668012ixuxd.pdfIn PDF document text
    • http://zumanidoxup.medianewsonline.com/xd_mp3_descargar_musica_gratis_para_celular_blackberry.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/Lhaihj4/eddie_jungle_world_adventureland.pdfIn PDF document text
    • http://wotukujis.sportsontheweb.net/61980717912.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/021a882d-57a0-415b-b2b6-f1e9a7053b3b/hoover_windtunnel_3_pro_pet_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610db644-6dab-4da8-bf7c-c8add29f411a/descargar_toque_de_bandera_preescolar.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C1 5108 bytes
SHA-256: d899a2ee9e937355e818f512cee631887b845e0e831d1b6196e920194e0b9646
font_01_sfnt_off0000fa53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA53 10612 bytes
SHA-256: 13fc2a4c549ad44b071b745c5d3fac9eaec36584b2af18ef722f51a3ac412d7e
font_02_sfnt_off00011ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EAD 16164 bytes
SHA-256: 4b52fd5da643d9c08cc0a86f773b2f024e3274f3f861dfcac100db1ef433cf06

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