Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca2b58e530060a7…

MALICIOUS

PDF

79.0 KB Created: 2021-02-20 09:15:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2cc80e3cfd626b78749b2c6ee2fe2902 SHA-1: ae72a5c27a9624b36eec3f80932d7bd1e4ab44d0 SHA-256: 9ca2b58e530060a70b719ff81ec0fe62373f0e6bcc1292177df7c4ea44130360
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=roblox+apocalypse+rising+guide+coliseum PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495841/normal_6005e6bc9e828.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404490/normal_5ffb7f0892b39.pdfIn PDF document text
    • http://tefulen.iblogger.org/the_crucible_comprehension_questions_act_1.pdfIn PDF document text
    • https://cdn.sqhk.co/lerotakisisa/EHgijjh/funny_captions_for_pics_with_dogs.pdfIn PDF document text
    • https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/7581956.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454051/normal_5feeb9f365f93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379217/normal_602b5f0ca8649.pdfIn PDF document text
    • https://cdn.sqhk.co/rukokota/hayijhc/cookie_clicker_hack_apk_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427103/normal_5fe53f754c5ca.pdfIn PDF document text
    • http://wavasesinile.22web.org/fujinu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451225/normal_6021785d348f2.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/hhje1ii/dubai_skyline_above_the_clouds.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimonaker.epizy.com/95582768542.pdfIn PDF document text
    • http://zajegugolex.epizy.com/lojokumuguxavosu.pdfIn PDF document text
    • http://tasukifuputuf.epizy.com/piano_sheet_music_for_beginners_amazing_grace.pdfIn PDF document text
    • http://zedafazoteto.epizy.com/oig_compliance_program_effectiveness_resource_guide.pdfIn PDF document text
    • http://fosekor.epizy.com/88852651453.pdfIn PDF document text
    • http://jifunujori.rf.gd/66017212992.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_off0000f089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF089 5712 bytes
SHA-256: a4dcebeecaf8f3e98457f2747f4bce912f54aea13da5e1429d071126eed38d1e
font_01_sfnt_off000103f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F4 13548 bytes
SHA-256: 87234ef4a80826bc69167ea290688eb0e38d5f96af84620e36dfc1eaf4faa96c