Malicious PDF — malware analysis report

Static analysis result for SHA-256 53839e979d8af36a…

MALICIOUS

PDF

68.8 KB Created: 2021-02-07 17:23:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f98e5a4ffb8a3d57010f5b2ba5d61667 SHA-1: 9e2003a824f6075a80be3c6f32093334c47a418b SHA-256: 53839e979d8af36aba6aa95bca9a941a7e966f55f69418e1cbdf38205098c2b5
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://leonvi.ru/wb?keyword=transformers%20bumblebee%20car%20type PDF link annotation
    • https://cdn.sqhk.co/posaleren/dhiHjir/gunship_iii_apk_obb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373301/normal_5fee67942f898.pdfIn PDF document text
    • http://gijokamamijole.iblogger.org/xodularunasewe.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/ehi3Dhb/pocket_city_ios_tips.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5fd658618f8b1.pdfIn PDF document text
    • https://cdn.sqhk.co/lisesemafo/ghTnWQf/fosubofusorutodajoliboz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_600eef7693b66.pdfIn PDF document text
    • http://kungfumalibu.com/practical_haematology_free_downloadkq8zn.pdfIn PDF document text
    • https://cdn.sqhk.co/xilasexiki/lJjhjjj/72263795669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490141/normal_5fd77c729e1a8.pdfIn PDF document text
    • https://cdn.sqhk.co/moxulofilose/jaUZQgc/12505655898.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dofusuzi.epizy.com/jamafiwedivupilinegomas.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/telugu_dubbed_bluray_movies.pdfIn PDF document text
    • http://zijupowisupol.rf.gd/95005028535.pdfIn PDF document text
    • http://rawarawoxegig.epizy.com/college_letter_format_in_marathi.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_off0000d022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD022 5352 bytes
SHA-256: 0a898b57788d76d56403902c5387e7d62f5d79cb1453f9690f168595f17a4591
font_01_sfnt_off0000e245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE245 10584 bytes
SHA-256: 294d91e29e75b705126a5b6216461d990f3f1c7eaf36979b982abd1febfd63e9