Malicious PDF — malware analysis report

Static analysis result for SHA-256 0281206f669eb96a…

MALICIOUS

PDF

72.2 KB Created: 2021-02-13 09:37:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f58a1de67e5d3f0551e2cfd29bfeb44d SHA-1: 1f536af7026a280cc20ca1118f3719d68b7e52f6 SHA-256: 0281206f669eb96a072a89704bdac54b3646d3ce5d4744f4796f13bdeb32a84e
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=japanese+iptv+apk+free In PDF document text
    • http://zoosalon.org/85096933052gvgm9.pdfIn PDF document text
    • http://tixshopclub.space/37158499810jg4pd.pdfIn PDF document text
    • http://wdd13.ru/51163856921kq9xv.pdfIn PDF document text
    • http://fojozefamofu.22web.org/pexuvunasotef.pdfIn PDF document text
    • http://1yamal.space/jelevanepifimewadivexizibrplg.pdfIn PDF document text
    • https://debagodijif.weebly.com/uploads/1/3/0/9/130969595/9257191.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gofiguj/html_css_editor.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/67585239907.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/free_letterhead_templates_with_logo.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/fatoziwakijo.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/butterfly_effect_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/kaleidoscope_fgo_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/dokegotuvebarejukubes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BD 1560 bytes
SHA-256: 71337577fef36e46ce718a09ca2836f03782d5f6ddaf742f46b904026ecd8998
font_01_sfnt_off0000dfae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAE 4976 bytes
SHA-256: 234011c01da48bd8e8400bdf7d5ec8e894f9d1d559c58298bda1555c8250a468
font_02_sfnt_off0000f0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B8 10184 bytes
SHA-256: 15e8f666c24688051a1213aaae82f5ded327caa93b53853543e6ea2eb539808f