Malicious PDF — malware analysis report

Static analysis result for SHA-256 d35180ea9870848e…

MALICIOUS

PDF

81.1 KB Created: 2021-04-03 13:07:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f70129764f6f0cc44d28a578649c314b SHA-1: afbfc36ae02431e9d40370ba3d7f7a13a27ae98c SHA-256: d35180ea9870848e7483f3fef38815b56693e9b215e58075626ff7549c25d7df
134 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to a link farm hosted on disposable domains, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/123?utm_term=farm+animals+sounds+free PDF link annotation
    • https://cdn.sqhk.co/tivinarafuvu/hcicri9/lock_screen_wallpaper_android.pdfIn PDF document text
    • http://mantenancie.com/go_away_big_green_monster_songem2w7.pdfIn PDF document text
    • https://cdn.sqhk.co/wesuwajil/sLGPjeO/asteroid_miner_idle_heroes.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/dihAznN/prop_hunt_free_online_multiplayer_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/bamosabubesi/ibhg2j4/disable_scrolling_in_excel_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/mawedabe/Ilhh9vy/82274908909.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/fhhPjez/smash_car_games_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/moxulofilose/dhdfnwH/data_rush_tracking.pdfIn PDF document text
    • https://cdn.sqhk.co/mojaribi/74Dih4p/gisezudovezom.pdfIn PDF document text
    • http://rastet-malysh.ru/nodosituxikgg8mz.pdfIn PDF document text
    • https://cdn.sqhk.co/vamosopon/zhiiaKr/hd_movies_hot_online_free_2020_apk.pdfIn PDF document text
    • http://pressit.space/what_are_some_other_words_for_confusedkusgf.pdfIn PDF document text
    • http://idealicacolumbia.site/889417013552scfh.pdfIn PDF document text
    • http://qwert-ita.fun/nisexitosenacdbkb.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/dc6jihf/tubing_in_colorado_near_me.pdfIn PDF document text
    • http://9gusevshop.space/free_shooting_bench_plansbtidd.pdfIn PDF document text
    • https://cdn.sqhk.co/guvelebul/jj9AKic/download_commander_battle_mod_apk_2019.pdfIn PDF document text
    • http://everydayy.fun/live_minnows_for_crappie_fishingpaflw.pdfIn PDF document text
    • https://cdn.sqhk.co/gazegarov/gihdMgh/poxapenuwidanidodakopi.pdfIn PDF document text
    • http://pixxel.life/encyclopedie_des_plantes_mdicinalesaqbxt.pdfIn PDF document text
    • http://businesshelpservice.com/4th_grade_sbac_practice_test6b88n.pdfIn PDF document text
    • https://cdn.sqhk.co/luwagoma/RrSiig0/cdmx_capital_social_uniformes_y_utiles_escolares.pdfIn PDF document text
    • http://monoga.space/the_lost_spires_downloadux0yl.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/ijifmjb/75296138423.pdfIn PDF document text
    • https://cdn.sqhk.co/vutazekerubu/jdjhtRU/73874741229.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/cea8a81e-551c-4317-a0b6-5b7080cad7e2/singer_esteem_ii_sewing_machine_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a30a1245-a3cb-4ca1-9c40-b0960efcf958/ielts_essay_samples_band_9_task_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8416b7a1-ce60-4c36-99db-978043ec8dec/graphic_designer_remote_jobs_canada.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43C 4808 bytes
SHA-256: 41fb4847106153762ab85ba1fe131645ce9d17790405a89ede45d086298ebc9f
font_01_sfnt_off00010469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10469 10904 bytes
SHA-256: 487413c2b9d93dbcf2fb1a7b3226be2a99d61e7a26b39b6a749ee009fceca4bc
font_02_sfnt_off0001285b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1285B 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34