Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eea1eb663778b7e…

MALICIOUS

PDF

73.2 KB Created: 2021-02-23 19:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: bcc8d58c4ccf1ba47be9f174f12bc82d SHA-1: 4ac95084453cfcea012a70edbaba0abc791a5cd4 SHA-256: 1eea1eb663778b7ed79cd1ec21af2b7e6b302056dbb5d373c2c045128a6bcebb
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://bologen.ru/wix?keyword=the+hiding+place+chapter+5-8+summary PDF link annotation
    • https://worizura.weebly.com/uploads/1/3/1/4/131437573/5796431.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380858/normal_60271a45240b1.pdfIn PDF document text
    • http://proita.space/razubobak814o9.pdfIn PDF document text
    • http://com-copyrighit.com/zappos_core_values88ntq.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/hcoii7p/hp_smart_app_for_chromebook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468530/normal_601049aeca182.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/gcjegdr/jutabababoto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5feaef2944551.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475997/normal_5fec7c3a92f87.pdfIn PDF document text
    • https://cdn.sqhk.co/nolovojawek/iAPggz0/15924486330.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469847/normal_601da2d54e81d.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/dejazuvorira/giant_eagle_bakery_newark_ohio.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/around_the_world_in_80_days_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/maple_leaf_rag_piano_sheet.pdfIn PDF document text
    • http://bidasumibave.epizy.com/software_architecture_document_template.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_off0000e109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE109 5888 bytes
SHA-256: 7c0eb0f64b452e95f5b6443c58e7a108a257b7542f60c88f92e0ebdd4c5b4bb3
font_01_sfnt_off0000f4f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F7 10104 bytes
SHA-256: 98c6dd24b6e99d68df4c8256d0060f678e0f64da69d119dd5be4c43d8d1ea4f4