Malicious PDF — malware analysis report

Static analysis result for SHA-256 60aeb195bb1516de…

MALICIOUS

PDF

65.8 KB Created: 2021-02-20 04:38:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 12e6bb8b6f2f5b4669b05c5db3dd8354 SHA-1: 9b00a56eff96e6d4e48f4f3567aec8e1b0af35f8 SHA-256: 60aeb195bb1516ded2046b7a7a18b50ea5800497640a22fe4395a5e731f3f90b
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://yafferge.ru/aws?utm_term=critical+appraisal+of+quantitative+research+paper In PDF document text
    • https://static.s123-cdn-static.com/uploads/4462046/normal_6002785ca8cc8.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/YMCjcig/1828144595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490974/normal_600b4d05a7d0c.pdfIn PDF document text
    • https://cdn.sqhk.co/someteku/Euifj9t/jiffy_lube_coupons_austin_texas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450870/normal_60224684493b8.pdfIn PDF document text
    • https://cdn.sqhk.co/gavoduse/hfovcje/54771334539.pdfIn PDF document text
    • https://cdn.sqhk.co/divojimo/Anjjihy/favimo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453102/normal_5fde83bc5e439.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pugatexekar.rf.gd/lujonofagezuzab.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/rounding_to_2_decimal_places_worksheets.pdfIn PDF document text
    • http://jozivunawitud.rf.gd/math_kangaroo_2019_questions_and_answers.pdfIn PDF document text
    • http://duvufewitopemaw.rf.gd/sugemilinafaxerobusupu.pdfIn PDF document text
    • http://mewexudidis.epizy.com/60199840647.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/09_escape_ignition_switch_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/23611706844.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/what_are_3_major_differences_between_dna_and_rna.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/shute_shield_tv_guide.pdfIn PDF document text
    • http://tuwetixa.epizy.com/free_akd_trade_cast_software.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_off0000c6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EE 5192 bytes
SHA-256: ca9fdf15204970218660c091de24b3e1dcee2974f660472e2260b7c9db667f5a
font_01_sfnt_off0000d89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89E 9784 bytes
SHA-256: 08707572ad5de3d2c66c36be0e392f15514c6bab72701b8f1077058168f2ca20

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