Malicious PDF — malware analysis report

Static analysis result for SHA-256 d36b60fe01922f75…

MALICIOUS

PDF

67.4 KB Created: 2021-02-24 04:57:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7c1b0f9c5449386f9260eddccfa0205c SHA-1: c6bf88b32aab1d2faa00fb0464b5d64bb0a94a4f SHA-256: d36b60fe01922f7579e681292faf30061fcc50e991a141c55f24b3dd2fb2356e
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://maypoin.ru/wix?keyword=limited+brands+hr+phone+number PDF link annotation
    • http://sodalabs.pro/noximugidoxomumukuzuwir1mc9l.pdfIn PDF document text
    • http://autocredit.moscow/baritone_ukulele_chords_chart13g2v.pdfIn PDF document text
    • http://romeital.space/mizizusvm8bo.pdfIn PDF document text
    • https://biteledazuxol.weebly.com/uploads/1/3/4/3/134315761/xirevovivupeguxuv.pdfIn PDF document text
    • http://ryukzak.digital/one_talk_application2lyg7.pdfIn PDF document text
    • http://kosolibanun.iblogger.org/angularjs_adminlte_template.pdfIn PDF document text
    • http://whitecheat.xyz/how_do_i_program_my_verizon_remote_to_my_samsung_tvcbwau.pdfIn PDF document text
    • http://universal-kirov.ru/the_americans_season_1_episode_13sgehy.pdfIn PDF document text
    • http://indital.fun/coordinate_geometry_questions_with_solutionsfzvgt.pdfIn PDF document text
    • http://7gusevshop.space/belkin_n600_wifi_range_extender_setup6e29l.pdfIn PDF document text
    • https://cdn.sqhk.co/wifukatar/wjhYhg0/siraxufajukamurume.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://janutozekim.epizy.com/71614989840.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/93040592278.pdfIn PDF document text
    • http://pajilovusibu.epizy.com/vocabulary_from_classical_roots_c_lesson_7_and_8_answer_key.pdfIn PDF document text
    • http://tubofebagadupa.epizy.com/online_application_form_for_senior_citizen_card.pdfIn PDF document text
    • http://litemulum.rf.gd/vujuvepupabolefozebumowiv.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_off0000ccf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF6 5248 bytes
SHA-256: 20e4b21e1316fa22374e4b0df95918ff37bb1b8faeb8d09a23410b275d87bffa
font_01_sfnt_off0000de9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9A 9976 bytes
SHA-256: dd0e279d5513079568fae51431779f00340cdf3cb6dc0e431ed1a72137559d31