Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ab5dcc3ee8a38ee…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 22:09:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: daf3c58d52aeaf8aff99ab32ce3dc3d7 SHA-1: cf9a581bef21bc22b114a8dc8db3794f7a78cbe3 SHA-256: 1ab5dcc3ee8a38ee3f618c5a93fd7500092eff80488454b2c8a828ee93e2d4c2
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/strik?utm_term=que+es+liderazgo+empresarial+y+sus+caracteristicas PDF link annotation
    • http://dumubemajizukov.medianewsonline.com/can_i_upload_my_dna_from_myheritage_to_23andme.pdfIn PDF document text
    • https://cdn.sqhk.co/javukapegami/gihiTcx/office_boss_chair_manufacturer.pdfIn PDF document text
    • https://togoxijagujeg.weebly.com/uploads/1/3/0/7/130775712/6566539.pdfIn PDF document text
    • https://cdn.sqhk.co/xedomobedusi/eLgeIGJ/senevarejutumulub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_600ddfabae2c9.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/operations_management_certificate_programs.pdfIn PDF document text
    • https://cdn.sqhk.co/gigepiwej/inigVjg/36887974408.pdfIn PDF document text
    • https://jajelawipazug.weebly.com/uploads/1/3/0/7/130739535/df03c74840465.pdfIn PDF document text
    • https://witokilufixag.weebly.com/uploads/1/3/4/7/134739393/9682d0587abd.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/pukiza/software_reliability_engineering_musa.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/keguzeketewalarevegej.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/chameli_ka_phool_ing.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/economics_101_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/fashion_esl_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/yugioh_duel_links_starter_guide_reddit.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/80922627708.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/90757966295.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/small_group_facilitator_guidelines.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE688 5604 bytes
SHA-256: 4febbb7cdd795f5c1b0fba6de07654abc7f081c62302287b16e03c1e84dc6afc
font_01_sfnt_off0000f98b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98B 11620 bytes
SHA-256: 03efbfd3832fbd9eabc7a4e3ed0da2f17f8f4a3b8d20f1e24e5d9e4dc75ded18

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