Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b4460119f5a778…

MALICIOUS

PDF

65.2 KB Created: 2021-02-20 20:56:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5a0e11ce5e2e96a8d0eda7f446c88e09 SHA-1: 6a5e6cae9e46db4a8032500fe2244ce7b56e1924 SHA-256: 54b4460119f5a7781adeca49c6f2697d57c8e742ece995e3d1309fb04e23fb90
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/wix?keyword=the+art+of+peace+and+relaxation+workbook+pdf PDF link annotation
    • http://jitokinut.iblogger.org/winz_agent_authority_form.pdfIn PDF document text
    • https://cdn.sqhk.co/zexoribuj/iijcVjg/gokofewofurunepurigu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381340/normal_5ffe90e54cba7.pdfIn PDF document text
    • https://cdn.sqhk.co/razotefo/hjjiGjc/rulalazisedurakagozubolef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387814/normal_5fecc96bea0b5.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/eThhhex/4_immagini_1_parola_6_lettere_pasqua.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rusuxagek.rf.gd/3705092995.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/92085225658.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/retract_resignation_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/hcv_treatment_guidelines_2018_aasld.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/shayari_photo_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/informational_powerpoint_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/koxazitukivo.pdfIn PDF document text
    • http://joxamemi.epizy.com/asphalt_nitro_1._7._2o_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/rojagiwabud.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/boilsoft_video_splitter_6._33_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/sarkari_result_rrb_alp_answer_key_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/vopukomuvemazudobu.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/save_data_burnout_dominator_psp.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/17899476570.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_off0000c439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC439 5380 bytes
SHA-256: 2972c138522988b1386be044300457b4637738aebdd85ecb216c5890cfe9ace8
font_01_sfnt_off0000d68c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD68C 9628 bytes
SHA-256: c39be06f4bf059cee45278ff9b4ad22f4625c49c63a9055a5117a75d4c39bd3b