Malicious PDF — malware analysis report

Static analysis result for SHA-256 374d4660120b08ae…

MALICIOUS

PDF

74.7 KB Created: 2021-03-08 08:52:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e507e5906676f0db8fcf8f59f0c022a7 SHA-1: ad61ac5f99a7254146635d695ea5bb7efde3e9f2 SHA-256: 374d4660120b08aeaa98635fd2538c6a3150cd395ee05e248cdc15241ab987cc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=what+are+the+stock+market+futures+doing PDF link annotation
    • https://cdn.sqhk.co/livulopo/iijwgfB/god_of_war_lost_toys_sell.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449622/normal_5fdae328e797b.pdfIn PDF document text
    • http://garantiya62.ru/what_psat_score_is_national_merit_class_of_202135r7e.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/0hbjhhd/34457413794.pdfIn PDF document text
    • http://lipenav.mypressonline.com/what_instrument_do_we_use_to_measure_weight.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/G32iehf/openttd_mods_best.pdfIn PDF document text
    • https://cdn.sqhk.co/nazamesuwute/PEjgjfI/arsenal_top_scorers_2019_20_all_competitions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392862/normal_6045bc5fb1701.pdfIn PDF document text
    • http://student-yurist.ru/48495318555jyqwh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380701/normal_5ff6b61aa0acf.pdfIn PDF document text
    • http://giocodigital.space/star_trek_voyager_elite_force_download_macpwflk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414871/normal_6016fb155f933.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/2mYjfgj/kp_pigments_color_shifter.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bufexa/princeton_review_practice_test_5_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/navy_blue_wool_jacket_ladies.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/buderus_gb142-45_installation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/78950467472.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/libros_de_fisica_universitaria.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_off0000e5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E4 5480 bytes
SHA-256: 8e86d90deb15b19c804713e25bb20504cfe3b6a337300305cb1038559548d775
font_01_sfnt_off0000f86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF86C 10952 bytes
SHA-256: 376f75a22537eae636a3f1eed6041e79924f7ff6856842a1d38accd51ba994e7