Malicious PDF — malware analysis report

Static analysis result for SHA-256 78084f51cc080dd8…

MALICIOUS

PDF

71.7 KB Created: 2021-02-25 09:19:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1b3cba84f18de69676db3ce3f8a4fb78 SHA-1: 9ee74d4af13fcbf3d164c3a4b40ebebd62125a6c SHA-256: 78084f51cc080dd80ddd0d96d6857716666cf095875ea1549a9165b8e6faf5c5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/award?keyword=pole+dance+music+playlist+youtube PDF link annotation
    • http://bisokebe.22web.org/52259457638.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/dBhdyH5/nogirida.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/jesus_today_albert_nolan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491164/normal_601723a67af81.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/itM3Jux/dominoes_falling_video.pdfIn PDF document text
    • https://dojifidixiwaji.weebly.com/uploads/1/3/4/3/134372722/81994919509634d.pdfIn PDF document text
    • https://nefarixutasirov.weebly.com/uploads/1/3/1/6/131606035/8648730.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/77006991989.pdfIn PDF document text
    • http://irisca.online/42920279447sbmgq.pdfIn PDF document text
    • http://xorabawik.medianewsonline.com/48323937012.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/tibivasoriwaxafa.pdfIn PDF document text
    • http://poroda.site/nakokikejodejufafaxugelab18f.pdfIn PDF document text
    • https://cdn.sqhk.co/kowalaxu/iahd45u/77082092488.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nimobavaze.epizy.com/kakshi_amminipilla_song_aval.pdfIn PDF document text
    • http://gematufevisuw.rf.gd/zokubitixewajesomamagurat.pdfIn PDF document text
    • http://wivufaw.epizy.com/77445287351.pdfIn PDF document text
    • http://namepafubi.atwebpages.com/ps_form_3602-ez_fillable.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_off0000dc09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC09 5364 bytes
SHA-256: 490bef150deffc4406a96c6ab8dbb5dd7af8b601be9ea713e47c5fbc26fd001a
font_01_sfnt_off0000ee38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE38 10288 bytes
SHA-256: af857327c1e39ee083f34d10b886bf5f9b2241216d8f9e2088e381502588daf4