Malicious PDF — malware analysis report

Static analysis result for SHA-256 954187917f87ee71…

MALICIOUS

PDF

68.3 KB Created: 2021-01-25 16:25:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 4003aced8b5c3eb07d92c8da34c352a4 SHA-1: 1a38528210d3ac82f815440221e3ffc267af6d74 SHA-256: 954187917f87ee71b605f063de5a6e2d03ee4d93c9d204352a7709d239cc16b2
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://traffnew.ru/wb?keyword=dream%20girlfriend%20apk%20offline PDF link annotation
    • http://microdigitalmeter.xyz/andy_serkis_audiobook_lord_of_the_ringsy80tr.pdfIn PDF document text
    • https://luwanolukurodo.weebly.com/uploads/1/3/5/3/135397368/wubuxatab_putadivemuva_rarugobev.pdfIn PDF document text
    • https://bitusuverutito.weebly.com/uploads/1/3/1/8/131871453/minunuto_jatefezamixuw_kagisetoxopa.pdfIn PDF document text
    • https://wuvozova.weebly.com/uploads/1/3/4/5/134500004/266284.pdfIn PDF document text
    • http://virona.org/nejonaub4fs.pdfIn PDF document text
    • https://biparobotimipus.weebly.com/uploads/1/3/4/4/134498468/gegekirizegupaz.pdfIn PDF document text
    • https://bawilawuvibowe.weebly.com/uploads/1/3/4/4/134401702/vizukotisolijutesan.pdfIn PDF document text
    • https://cdn.sqhk.co/metusoteliza/ijOjeij/fekali.pdfIn PDF document text
    • https://valejuti.weebly.com/uploads/1/3/0/7/130739952/toboxopimux.pdfIn PDF document text
    • https://cdn.sqhk.co/zipodumup/qijijxj/9896720736.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/somamere/lufalegike.pdfIn PDF document text
    • http://rexawisoza.epizy.com/3d_animated_christmas_wallpaper_free.pdfIn PDF document text
    • http://vudatuvabejosix.epizy.com/25751339892.pdfIn PDF document text
    • http://deravamosu.rf.gd/rearranging_equations_worksheet_answers.pdfIn PDF document text
    • http://feramivo.rf.gd/newsletter_microsoft_word_templates_free.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_off0000cd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD93 5244 bytes
SHA-256: 781b895b763297418fc5d73f1266d4c1061e005ef96e39647ae29891c61f85fa
font_01_sfnt_off0000df60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF60 11020 bytes
SHA-256: a83857b4443ee275f7ded95eabb9dc7a3e080e0550418f304a8cc562c62f3124