Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5ff7540ee9b873…

MALICIOUS

PDF

69.1 KB Created: 2021-02-26 20:36:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a18f4810b9bb0afd1abbe6368e152ab5 SHA-1: 7dc1f9e39b2062acb8a102e2774a940ca3bc4d75 SHA-256: 0e5ff7540ee9b873d70eafbcab88e84b26fa311575edb3caa2b7028c4fb75b57
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/award?keyword=scag+tiger+cat+2+for+sale PDF link annotation
    • https://gakatonigi.weebly.com/uploads/1/3/2/6/132681340/661046.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408464/normal_5fdefaa1304bd.pdfIn PDF document text
    • https://kuwobudub.weebly.com/uploads/1/3/4/5/134587752/tonaxaforatewosemib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465685/normal_60180c300a54c.pdfIn PDF document text
    • https://sivisobimiji.weebly.com/uploads/1/3/4/7/134754783/vononeregemi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://budivisatenebo.rf.gd/balao_da_informatica_paulinia.pdfIn PDF document text
    • http://satuzexo.epizy.com/55633291529.pdfIn PDF document text
    • http://runesufosufej.rf.gd/awl_vocabulary_list.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/beautiful_flowers_images_hd_free.pdfIn PDF document text
    • http://tidovikuvam.epizy.com/7904992755.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_off0000cba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA3 5284 bytes
SHA-256: b6fb4d906cc538c25cce5e64a2f972931b6794d55418e50a4f535032d5c30c23
font_01_sfnt_off0000ddae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDAE 13420 bytes
SHA-256: 4c2f26fe178e116ecd6a335cb861b74e7f2a3d6e072f1a66a89c7341bb2ad410