Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6dbea960dae032a…

MALICIOUS

PDF

71.8 KB Created: 2021-02-26 12:20:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 60c1705c96ac9bd30a9416f23f9fd1ae SHA-1: 1c72df3df1c5ae03601393749bacc4578ac47f48 SHA-256: c6dbea960dae032adee9a21f021ae1c152369d2748a707638cda05696f9537f3
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://fokemale.ru/award?keyword=preterite+vs+imperfect+worksheet+free PDF link annotation
    • https://fafefojesuvun.weebly.com/uploads/1/3/4/6/134651362/a2a8faea3.pdfIn PDF document text
    • http://ijmalan.xyz/58637931735nz77t.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/chomsky_theory_of_language_developmentln3u7.pdfIn PDF document text
    • https://telusexuv.weebly.com/uploads/1/3/0/7/130776200/jedilugu-nefawad-wofasukunom.pdfIn PDF document text
    • http://idealsit.fun/active_directory_servicesymr86.pdfIn PDF document text
    • https://bezamefiparafu.weebly.com/uploads/1/3/4/6/134665790/webifirelofuj-sopuvevuwexix-fabegosog-golagev.pdfIn PDF document text
    • https://cdn.sqhk.co/ravusigi/JtXhhT1/4440603431.pdfIn PDF document text
    • http://merovew.xyz/lenovo_support_center_near_mej69sw.pdfIn PDF document text
    • http://sportita.fun/272700677102wzrq.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/chwzrjf/baahubali_the_official_game_mod_apk.pdfIn PDF document text
    • http://baffer-shop.space/algebra_1_exponents_review_worksheetjdufg.pdfIn PDF document text
    • http://golomashvanna.xyz/doduwuromo06qxa.pdfIn PDF document text
    • https://buwipifigidorip.weebly.com/uploads/1/3/0/8/130813409/b88ad57.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/xupovobejanam/98185539802.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/52847171754.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/73937466825.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/gitexojazagukoke.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/goniwolalazive.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_off0000dd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1C 5232 bytes
SHA-256: 52c3bf6991668617047018a8c8f40f98d193370ed004f62178b7670f8cd13e12
font_01_sfnt_off0000eeda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDA 10296 bytes
SHA-256: f4654225d180d68bee3e386586f42d746e0230e2519e67b34afc2c153761b6e2

Open this report in the interactive analyzer, or submit your own file for analysis.