Malicious PDF — malware analysis report

Static analysis result for SHA-256 d189f71023946a0a…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 18:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78724bec43d5346706abbf30280c82dc SHA-1: 830fd0da239ed4e9606d2a0759066472254a25b8 SHA-256: d189f71023946a0a42cf36250fa9edda0bdd4ed8f8924354e4ea25044d3e5de1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, which points to a URL that appears to be a lure for downloading software. The document body also contains the same URL, suggesting it's the primary mechanism for user interaction. The file also exhibits characteristics of a link farm, with numerous external PDF links, many of which are benign, but one critical link leads to a known malicious redirector.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.cc/pify?keyword=ashes+cricket+2017+pc+setup In PDF document text
    • http://xaxuwi.thefabriclibraryenniskillenltd.com/uploads/1/3/0/7/130739897/mosogefegereguk.pdfIn PDF document text
    • http://ranino.gesikpt.com/uploads/1/3/1/1/131163559/xatejexepup.pdfIn PDF document text
    • http://files.shopitiswhatitis.com/uploads/1/3/2/7/132740275/618791.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/que_es_arquitectura_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8348/4574/files/yaseen_sharif_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/0062/1224/files/1463774497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/kuxev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4879/6309/files/67171341333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/how_to_make_bookmarks_in_nitro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/brother_lock_1034d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5305/6149/files/drilling_through_metal_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/9350654583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/kagibujupujukuj.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 5240 bytes
SHA-256: 49ac572e667cbbbe22edf9ae35607f0a47de20fce124c1ebee016f1d50637fdc
font_01_sfnt_off0000757b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x757B 10252 bytes
SHA-256: e0dff8c008cf10347a2089858229e2cbd35b1a0aca795df5a8c01ecf979ea03b
font_02_sfnt_off000098cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98CD 16660 bytes
SHA-256: 71fe66e8a900eabe62c773f6b9b467243c87e6d484dd0ea34a22194082714177

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