Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2f076f2add953c…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 00:26:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 08c72856bf4b29e24618392fb1a8f0e6 SHA-1: 4b14a7870b5620780856946786fa2d503a77d32a SHA-256: 0f2f076f2add953cc05ab40300887da97d39f6985c0aeda81ae7d6cc5ac64681
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://crophysi.ru/strik?utm_term=panasonic+kx+tgc210pdb+opinie In PDF document text
    • http://retys.space/stick_z_dragon_super_apk2b20c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406775/normal_5ff259d12fc39.pdfIn PDF document text
    • https://cdn.sqhk.co/xekutenupi/fiihcjc/18609851392.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/hcjhHgc/14923520981.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481852/normal_60302b1c0c401.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/aIKxr5l/transfer_case_rebuild_sacramento.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483071/normal_6015b6b82ca89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478148/normal_6005e773d0af5.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/18773216255.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/xeruxaxer/fetexofagugojusomura.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/23971210284.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/59844895812.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/dutupapadivaxutomebemiket.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/film_3_dara_full_movie_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/jexojufatuzodolizepu.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_off0000da05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA05 5712 bytes
SHA-256: 9356adbede519e8396c6d84c53b380a3d022e0c10057303ecbe992c7ff706705
font_01_sfnt_off0000ed94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED94 12336 bytes
SHA-256: 2ca740766ba5cf5740932fefbd9eb5e24b9dc918298c86c3a9fd454b9ae88ba8