Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59efb171afa12c9…

MALICIOUS

PDF

80.3 KB Created: 2021-02-21 15:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a63dcde7c15562282a2fc9ce12d81c71 SHA-1: ed3a463fbd1c2312154b6cbb1f4f5fa93ea31e65 SHA-256: e59efb171afa12c96aa1f0c4d23ec946e713cc5269c9c81a7276da12a738febb
186 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/123?utm_term=bryant+plus+80+gas+furnace+inducer+motor PDF link annotation
    • http://2022god.com/jepopeditighh97.pdfIn PDF document text
    • https://cdn.sqhk.co/nevupediwix/hfiwFhx/woodworking_bench_plans_sketchup.pdfIn PDF document text
    • http://babixuxuw.22web.org/what_is_ellipsis_in_literature.pdfIn PDF document text
    • https://cdn.sqhk.co/tokebamojos/uCbzmha/age_of_empires_2_android_portugues.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/PghPDMs/evertale_ssr_characters.pdfIn PDF document text
    • http://chelobaka.space/59657628134cfnjw.pdfIn PDF document text
    • https://wijinopupog.weebly.com/uploads/1/3/5/3/135323990/3588570.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/69Sbzja/shelter_from_the_storm_lyrics_az.pdfIn PDF document text
    • https://cdn.sqhk.co/pubisifibuj/hfSjbjy/kontrabida_in_english_word.pdfIn PDF document text
    • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/zesosixekizejaka.pdfIn PDF document text
    • http://smallita.space/apple_time_capsule_router_manual0053s.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/davubewu/venapewijenanoje.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/50463562296.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/97739320159.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/pawazuvo.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_off0000f9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F9 5960 bytes
SHA-256: 149719d9c5f4af49f292cc67396cfdbf18a73f921c30bc06295b2400b86bd727
font_01_sfnt_off00010e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E3B 11236 bytes
SHA-256: 50555403bd2b6f3f3a7d8865c01caf5dbbb0f436556d651aef0da45b6db9dd9b