Malicious PDF — malware analysis report

Static analysis result for SHA-256 49686108ab31108d…

MALICIOUS

PDF

65.1 KB Created: 2021-02-13 09:41:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8abfa0bbae036641bb39d54def7ba0c2 SHA-1: 79da59dc8f1e72f8ea42a74cbd88c8cb681fbff2 SHA-256: 49686108ab31108dfb4fa7ef7b4e7738e84cf00da89d89de8a4238931403a20c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jottigo.ru/123?utm_term=jansport+custom+backpacks PDF link annotation
    • http://lanufutado.22web.org/2010_jeep_compass_reviews_consumer_reports.pdfIn PDF document text
    • https://jobuvofuwado.weebly.com/uploads/1/3/1/4/131483112/8813016.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489422/normal_60037c4108382.pdfIn PDF document text
    • https://cdn.sqhk.co/somisafeg/icN2giM/jidomuxogizebefekuvofo.pdfIn PDF document text
    • http://idealicaitalia-official.site/305615850607x1f9.pdfIn PDF document text
    • https://paluwewokob.weebly.com/uploads/1/3/2/7/132712057/6323236.pdfIn PDF document text
    • https://lenexemumuvag.weebly.com/uploads/1/3/1/4/131438583/jutexe-tikekuve.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460686/normal_6003fd7f67a50.pdfIn PDF document text
    • https://kifesajisibak.weebly.com/uploads/1/3/4/8/134884742/401068.pdfIn PDF document text
    • http://pusokum.66ghz.com/47179695912.pdfIn PDF document text
    • http://mmmuuuue.space/shree_gurudev_datta_mantra_benefitsv7ht0.pdfIn PDF document text
    • http://gazzsheff.xyz/bhoot_fm_audio_storygj6h3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369926/normal_5fd792756700f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404488/normal_600434ba122af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mowubuzedolilaf.epizy.com/19835514085.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_off0000c13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC13D 5240 bytes
SHA-256: 0741a196c5b1bbdf3439ac7745c4778a29ef480fe1d9c1c15d943d081e5b220e
font_01_sfnt_off0000d2f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F8 10892 bytes
SHA-256: ad1b83ce57929b92d1bbe4b62ea518862bda40ef71010b06eeb7171375af8663