Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec06c24c0d27a63…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 05:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5e03efd59c2ab45e65e59abcc0be0e36 SHA-1: 38776c625f6a6f877b06836f708d4d1fe68cd496 SHA-256: eec06c24c0d27a6341990a1e504b859c752b163cb8639a9d688683b6ea66760f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=2007+jeep+grand+cherokee+srt+interior In PDF document text
    • http://fapepewakidij.22web.org/mirugokigo.pdfIn PDF document text
    • https://rokubupudila.weebly.com/uploads/1/3/1/8/131856034/nadaxoket.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483071/normal_603541a5c054c.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/59895763175.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379618/normal_60019b7970a5f.pdfIn PDF document text
    • http://godotobekof.scienceontheweb.net/how_to_keep_coleman_roadtrip_grill_clean.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501659/normal_600cee0199d01.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/big_data_analytics_salary.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/telalituvewavosumusetape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477878/normal_601842b60c540.pdfIn PDF document text
    • https://suxamoka.weebly.com/uploads/1/3/4/8/134876373/e5910f747e5bb36.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogoxuf.atwebpages.com/riparos.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/gamo_air_rifle_cleaning_instructions.pdfIn PDF document text
    • http://konapawejiwevin.epizy.com/vedefolepagolut.pdfIn PDF document text
    • http://nanesipub.rf.gd/penavanabaroruwexatazejef.pdfIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/block_diagram_in_control_system_questions.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_off0000e17e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17E 5704 bytes
SHA-256: 4a00d80d62f455c9c5da849578bbb253875fbc506735efdc248a7edab2f4ff52
font_01_sfnt_off0000f4ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EC 10240 bytes
SHA-256: e642c9fb15ced5faf28a78ec89d301c49cd8f5a1db5e081bf429f3f102a638a4