Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32899b671fea291…

MALICIOUS

PDF

74.2 KB Created: 2021-02-23 08:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7f9d3b5f3564ae466a66d64eb6dfb184 SHA-1: 49710dd87da897351f2a8d280b2284ac635ef8a2 SHA-256: c32899b671fea291cf0f68cab155f973314acb2e05bb540bcab6375b1438e793
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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=breaking+the+disney+spell+pdf PDF link annotation
    • http://roponajila.22web.org/voroberemekebuzakan.pdfIn PDF document text
    • https://tamoniwezetiro.weebly.com/uploads/1/3/5/9/135961995/3a455f75c7a1a3.pdfIn PDF document text
    • https://cdn.sqhk.co/bogovureg/CQ5Ujco/35104266811.pdfIn PDF document text
    • https://cdn.sqhk.co/beluvano/jg2ahit/19039735098.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/gfk0egv/17210093214.pdfIn PDF document text
    • https://cdn.sqhk.co/javepuju/ibougcV/solution_davey_s_mystery_1.pdfIn PDF document text
    • https://cdn.sqhk.co/fagaxirupunu/7LgeBgJ/tuniwaxometiti.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/hijeHvC/moneygram_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/transformar_de_grados_fahrenheit_a_rankine.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/citroen_c4_grand_picasso_manual_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/paypal_support_email.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/vipetave.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/zadetonedurim.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/convert_ppt_to_jpg_small.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/barakamon_wallpaper_android.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_off0000e5b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B0 5516 bytes
SHA-256: 69089793fc70525c5c19c33b03694bd55feb7d35482f56a23a0175076e577d8b
font_01_sfnt_off0000f87a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87A 10420 bytes
SHA-256: 2aee24beb5f4043a9de9aa0eb1e1dee36ce5e3392f29d8f48d2b0085311ac20d