Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fa83498acac9cca…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 12:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 5de56acc20e4a0e910a25cd6cf1a45d4 SHA-1: 5ff53e99334249d9b265c2ad648111829848b0fb SHA-256: 8fa83498acac9cca6960dcce1ac7bf9136023b33b86b60b861a9b76647974f34
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/123?utm_term=online+aa+meetings+raleigh+nc PDF link annotation
    • http://podarokinsta365.site/korigozimupunakugifcamq5.pdfIn PDF document text
    • http://bubble1.space/fort_joy_wellexx7z.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/jixetixudot.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/90726615158.pdfIn PDF document text
    • http://alkostore.xyz/robotech_rpg7k3xr.pdfIn PDF document text
    • http://marketitaly.info/how_to_clean_lavazza_coffee_machinepfnq4.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/30234692844.pdfIn PDF document text
    • https://jolovezenokomo.weebly.com/uploads/1/3/1/3/131398109/340761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369788/normal_6014389297ff4.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/kujog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404287/normal_6036d5e6608a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404523/normal_5febd01203a95.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/bomupi/canadian_citizenship_guide_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/practical_english_usage_new_fully_revised.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/wujalasixa.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_off0000dbc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC5 5240 bytes
SHA-256: 88e3e74532f6da1ecb1eaa0b23cd179804326fe6482c1c9843b059fa61576b9f
font_01_sfnt_off0000ed6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6A 11272 bytes
SHA-256: e478aa859d7f9aee44d6f60dbba2e2d8e1e61bc1ec0b0ec266fd0141c05e04b4