Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ce5d9f929be59f…

MALICIOUS

PDF

74.7 KB Created: 2021-01-24 07:41:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: ceadeabbd74cd54a856b3ce4b2382e52 SHA-1: 680b62a707727be4d7a49581a8d20d03ee3668d7 SHA-256: 24ce5d9f929be59f8663ea463c1cd95bb0880b27b770e05332ac86ca7f7d69c9
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://trafffi.ru/wb?keyword=road%20trip%20essentials%20gift In PDF document text
    • https://gofegupozomo.weebly.com/uploads/1/3/4/4/134479888/4797605.pdfIn PDF document text
    • http://zepawagir.iblogger.org/justice_reversed_tarot_guide.pdfIn PDF document text
    • https://gisixumaxen.weebly.com/uploads/1/3/1/8/131856636/3434195.pdfIn PDF document text
    • https://duxezixupedad.weebly.com/uploads/1/3/4/0/134095883/1860693.pdfIn PDF document text
    • https://wovovude.weebly.com/uploads/1/3/1/3/131397940/b11aa1424c3689.pdfIn PDF document text
    • https://miwunogix.weebly.com/uploads/1/3/2/8/132814940/xejigoxujin.pdfIn PDF document text
    • https://bumobuzeki.weebly.com/uploads/1/3/4/4/134477779/wefepip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gobofitis.epizy.com/44109184063.pdfIn PDF document text
    • http://fapubogodomeduj.epizy.com/lerevagena.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/99554186121.pdfIn PDF document text
    • http://nidikofuwovi.rf.gd/vonuxefojug.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/pdf_retorika_mengguncang_dunia.pdfIn PDF document text
    • http://jadupapobixe.epizy.com/5860190361.pdfIn PDF document text
    • http://sotilikesad.epizy.com/naval_sea_cadet_corps_uniforms.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/picsart_app_free_for_windows_10.pdfIn PDF document text
    • http://zebofazedixa.rf.gd/vector_dot_product.pdfIn PDF document text
    • http://wetoxisifogif.epizy.com/e46_auto_to_manual_swap_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/ccs_university_exam_form_for_bba.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_off0000e7eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7EB 5216 bytes
SHA-256: 6980579db3ad25d4c9051060f97533b4cdb29c7babb3ef10a653c540267e6a73
font_01_sfnt_off0000f9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C1 10608 bytes
SHA-256: f891646b162885fb2b5628fe3d67178da74d7b5d32ea09b9f864a0af717b747f