Malicious PDF — malware analysis report

Static analysis result for SHA-256 e586a35373649aa1…

MALICIOUS

PDF

69.8 KB Created: 2021-02-09 15:07:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3845ec795cca6bb6526d76fee9d0e3a4 SHA-1: 4d41941f6229ca6a362d5a2616221f7d9aa75ba8 SHA-256: e586a35373649aa14aba4f13fcd96111f3a23a203376cf7866caf8ec332991de
136 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
  • 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://leonvi.ru/wb?keyword=free%20live%20tv%20apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4500444/normal_5fed0841c3c73.pdfIn PDF document text
    • https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/e4829.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480382/normal_5fd0317019f0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411717/normal_6005494e003f3.pdfIn PDF document text
    • https://nonafinawajag.weebly.com/uploads/1/3/4/3/134331790/f3c5d3.pdfIn PDF document text
    • https://cdn.sqhk.co/ferudati/pzhjhji/mindustry_maps_wiki.pdfIn PDF document text
    • https://betetudiju.weebly.com/uploads/1/3/5/3/135348010/babuziwufakaf.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/iahgxgg/31956829195.pdfIn PDF document text
    • https://cdn.sqhk.co/ruselaguzoda/fgjSjfH/61110770736.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448330/normal_5fee6242bd497.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/7rYibfa/clash_royale_hack_android_apk.pdfIn PDF document text
    • https://pegufozexak.weebly.com/uploads/1/3/5/3/135317465/cb9b249b4e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuxugev.epizy.com/cheam_park_farm_uniform_shop.pdfIn PDF document text
    • http://sekusasumoda.rf.gd/templates_and_inheritance_in_c_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/59682757136.pdfIn PDF document text
    • http://wamodaf.epizy.com/mivesavovidubulurufo.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/cadena_alimenticia_trofica.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/36754889935.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_off0000d541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD541 4716 bytes
SHA-256: 737aefb3c318795c6507ce3e3028c32fca22576a3d050f42a416bd8f46270d55
font_01_sfnt_off0000e560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE560 10816 bytes
SHA-256: 5b97a3e26f4bda5accbb8b77f72abfefe93a96c2219b2ec5c6d5d4f40fc26a35