Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f8df2b70b1b0ef7…

MALICIOUS

PDF

71.4 KB Created: 2021-03-04 08:01:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b4c95a03e9bd2b2186278c8bd1d96769 SHA-1: 3267d75f1442ac7b55e1b30ccd2972bedf998f69 SHA-256: 1f8df2b70b1b0ef70fc2aefcaa8980a40a4045140c4859da7c05793dd40f64f0
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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.
  • 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://yafferge.ru/award?keyword=how+to+train+your+dragon+plush+toys+light+fury In PDF document text
    • http://iciapp.xyz/will_gta_v_ps4_disc_work_on_ps5f6yos.pdfIn PDF document text
    • http://igcopyrightforhelps.com/acetilcisteina_xarope_infantil_bula4rdr7.pdfIn PDF document text
    • http://peludofnor.fun/kenmore_elite_washer_manualpf489.pdfIn PDF document text
    • http://ulekschool.online/jegujugigamujon77hja.pdfIn PDF document text
    • http://povar2020.site/834469741973ashs.pdfIn PDF document text
    • http://proita.space/jewuxirulisemrvmnc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405687/normal_60275293d1131.pdfIn PDF document text
    • http://remont-kholodilnikov.website/kuselojokotobag2v2y.pdfIn PDF document text
    • http://idealica-italiaoficial.site/zonegikojumofejubadiwutuno928.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378170/normal_5fc729521cfb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389361/normal_5fd3b4ca80c5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422161/normal_5fcc91bf19a27.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/society_the_basics_7th_editionxywso.pdfIn PDF document text
    • http://everydays.space/61100193621nbdu3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408709/normal_60121febb5385.pdfIn PDF document text
    • http://selizixid.iblogger.org/45409717959.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383470/normal_5fde28a98cbc6.pdfIn PDF document text
    • http://brumbum2.xyz/how_to_convert_a_delta_crib_to_a_toddler_bed8tzum.pdfIn PDF document text
    • http://usesucre.pro/digital_camera_picture_definitionqf0di.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456166/normal_60391d43a8041.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455894/normal_60406bbb232b3.pdfIn PDF document text
    • http://togimiguluvux.iblogger.org/what_is_clinical_waste_give_examples.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vipaviveza.epizy.com/ascaso_dream_manual.pdfIn PDF document text
    • http://zasagugidi.epizy.com/dekazutexusizo.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_off0000d3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FB 5456 bytes
SHA-256: a6eff32b6e3bab80f06c3f905483d9dca5ea4b25706db142c81601e36ba4ab8f
font_01_sfnt_off0000e69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE69D 12596 bytes
SHA-256: f68603af35c20f6ddbf7539545b70c536bf6d74a3843c8987b27c7a188464887