Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee698a4233767c9c…

MALICIOUS

PDF

36.9 KB Created: 2020-10-08 17:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 07994b1c7544a4438ca2a9747c615a65 SHA-1: d755b326edcaa7e47d13ab7ac49d542f7702dc9e SHA-256: ee698a4233767c9c43a3ca65baaea33695e88770749cea9063fca054b727c147
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, with at least one pointing to known malicious redirector infrastructure. The document appears to be a link farm designed to direct users to external sites, potentially for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.club/pify?keyword=catawba+co+gis In PDF document text
    • https://site-1041169.mozfiles.com/files/1041169/jobeleket.pdfIn PDF document text
    • https://site-1037113.mozfiles.com/files/1037113/meruk.pdfIn PDF document text
    • https://site-1043576.mozfiles.com/files/1043576/97838276430.pdfIn PDF document text
    • http://files.hrsouffrant.com/uploads/1/3/1/6/131606397/523149.pdfIn PDF document text
    • http://files.rosemaryhill.org/uploads/1/3/0/9/130969932/muvokugubijizonam.pdfIn PDF document text
    • http://sikobab.cvhelper.org/uploads/1/3/2/7/132741555/8149345.pdfIn PDF document text
    • http://files.praisetabhawaii.com/uploads/1/3/1/4/131409275/bowegigimapodadelita.pdfIn PDF document text
    • http://files.originalgoodfellas.com/uploads/1/3/0/8/130874180/xikowima.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1976b84e-1e28-41ef-8480-39d23a1f2d41/dulewagizi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9cd1535-b8b1-4d01-8b67-cf9b1b1ab1aa/bozuxejipudigupipudixe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05fbc2f6-dde7-4574-8618-7116cb335418/bapotosigulorow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab07cc98-c84e-487e-a508-8f0e3fcaed30/70772916339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ede26dc-69e3-47b4-9372-0c4ceb1f0e0f/65104271363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5919/5289/files/xutagolejinoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1269/1867/files/year_end_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/3277/3543/files/forest_hill_community_high_school_basketball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1570/6523/files/osi_layer_model_explanation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/point_blank_body_armor_straps.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_off000051d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51D1 4976 bytes
SHA-256: 50396f00395bb70f2353cf499d66ee55138279c861810175eb276d599b757621
font_01_sfnt_off000062e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E5 10520 bytes
SHA-256: 481e8986a90d8fab97a71b2d52acea54b72e2cdc7932dbd46186721fda58d512

Open this report in the interactive analyzer, or submit your own file for analysis.