Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26c3539a7d4dd9f…

MALICIOUS

PDF

75.4 KB Created: 2021-03-28 01:36:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6a956d60e7fdc1f397129cd37b964138 SHA-1: 8edc29cbe57c6bb85cd21e5fe987d01d5127aa05 SHA-256: f26c3539a7d4dd9f86f0f7eee3f0f0e1383265a8fe3c815a0ef87ff4185f6fd8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/123?utm_term=lean+canvas+template+word+document PDF link annotation
    • http://bazodifufibi.22web.org/megijurupewok.pdfIn PDF document text
    • http://megopoveguvujal.medianewsonline.com/59126136027.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/cpVfQJl/ritexemotatasapibonulen.pdfIn PDF document text
    • http://dosijefa.mypressonline.com/sjcam_sj4000_air_4k_wifi_action_camera.pdfIn PDF document text
    • https://cdn.sqhk.co/pasepizut/bcLjhwW/hamster_life_hack_app.pdfIn PDF document text
    • http://tadunikij.22web.org/which_software_is_used_for_data_mining.pdfIn PDF document text
    • http://tuduvodakep.mypressonline.com/prognosis_bronkopneumonia.pdfIn PDF document text
    • https://cdn.sqhk.co/tizuvuwo/icxzmqw/magic_lantern_canon_6d.pdfIn PDF document text
    • http://tasigezagu.scienceontheweb.net/bayes_theorem_example_problems.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/wind_sand_and_stars_antoine_de_saint_exupery.pdfIn PDF document text
    • http://nutetuxiv.mygamesonline.org/kujeka.pdfIn PDF document text
    • http://raraveluwogevuw.mypressonline.com/factors_affecting_anaerobic_digestion.pdfIn PDF document text
    • http://lixuzixewufixib.66ghz.com/tanaman_gymnospermae.pdfIn PDF document text
    • http://kutakelipaxeb.22web.org/61614190093.pdfIn PDF document text
    • https://cdn.sqhk.co/befulirawid/ejhpALE/wow_zandalari_moonkin_form.pdfIn PDF document text
    • https://cdn.sqhk.co/tanemurad/dMjcFA2/final_fantasy_14_races_stats.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lesodabat.epizy.com/86634983171.pdfIn PDF document text
    • http://vekisofekibote.myartsonline.com/6591073171.pdfIn PDF document text
    • http://jexusapije.epizy.com/53286972056.pdfIn PDF document text
    • http://joriboka.epizy.com/books_for_couples_to_read_together_before_marriage.pdfIn PDF document text
    • http://voxafizuvukulam.epizy.com/orhan_pamuk_about_istanbul.pdfIn PDF document text
    • http://luturufu.epizy.com/bhutan_the_dragon_kingdom_in_crisis.pdfIn PDF document text
    • http://duxurulokij.epizy.com/how_to_use_a_spa_bathtub.pdfIn PDF document text
    • http://voxinuxo.epizy.com/fareparolaj.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_off0000ea27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA27 5312 bytes
SHA-256: 3eb8c2c432ab738b90875be05abe85c3f6e6b6dac6a55bd2c3c041f20e5aa067
font_01_sfnt_off0000fc35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC35 10400 bytes
SHA-256: 6323c6e9564d8689dc047be0dd2c8d245ce4077c06b13de5c0e6a02601d6f76e