Malicious PDF — malware analysis report

Static analysis result for SHA-256 07172d11dcde6b4b…

MALICIOUS

PDF

71.2 KB Created: 2021-02-21 11:36:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5dad97cb1cf7b3b47e9c5c476684a28f SHA-1: 13a79e23864bac89251a6f02dd7b88cf52545ec0 SHA-256: 07172d11dcde6b4bf736f5646e169ca2a2dc0dba8cf91e39bcc23556ef2a9977
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://jottigo.ru/wix?keyword=poezi+dashurie+larg+njeri+tjetrit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373755/normal_5fdf96599a3e5.pdfIn PDF document text
    • https://cdn.sqhk.co/majumoros/fjiieTA/csr_racing_2_pc_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_60261bcccbb62.pdfIn PDF document text
    • http://mstmail.space/lixugudinefurezupegadif728oz.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/hadOvDZ/fubipojizipezon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387417/normal_5fe44b2dbac9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466411/normal_5fcdaa422a694.pdfIn PDF document text
    • http://gbarb.me/lovecraft_country_season_1_episode_4_trailerk5pmg.pdfIn PDF document text
    • https://cdn.sqhk.co/bibolaned/Iign5T7/super_bomberman_r_online_stadia.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409395/normal_6006c57be5da3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447084/normal_5ff1c477cfcd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5fe23bfd75ba5.pdfIn PDF document text
    • http://reduslim-sito.site/remote_guide_error_typeerror_failed_to_fetchhq39t.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/Eiha4zn/mivifizegixezita.pdfIn PDF document text
    • http://docita.fun/10879347361ihelu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepurudevivo.rf.gd/android_bitmap_auto_recycle.pdfIn PDF document text
    • http://pinezininefos.epizy.com/zigazeket.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_off0000db04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB04 5212 bytes
SHA-256: a7814f64fc36f86b3b1911193b40b8285ccf27acc4577b52fbf33a6381a0a3a5
font_01_sfnt_off0000ecc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC0 10088 bytes
SHA-256: 53922735dc12950a72da848f241c7b14954e3e34c2650257cae12103d42a642d