Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c005791d9bfa463…

MALICIOUS

PDF

37.7 KB Created: 2020-08-06 20:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abc0497fc20bed46b2d9d9913a25dd17 SHA-1: 41bcd24d948563583c82f26b9498ad1a16aa1b6f SHA-256: 8c005791d9bfa46316a76741724c9970cd7259976ff78a706146d4347a4542ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=axis+and+allies+ww1+rules+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, further supporting the malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=axis+and+allies+ww1+rules+pdf In PDF document text
    • http://files.kishjavier.com/uploads/1/3/1/6/131607467/9fcc5ab57a.pdfIn PDF document text
    • http://files.floridacraftychick.com/uploads/1/3/1/0/131070588/2346026.pdfIn PDF document text
    • http://files.lauraheathstout.com/uploads/1/3/1/3/131398237/rulimezod_getet_bekak_sepoxetuwiw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/19068621674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6694/0828/files/boundaries_in_dating_henry_cloud_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1660/files/gajupiganirusuwere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3967/8886/files/famab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/81270667098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/barunanipuritewupuzepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6012/6118/files/toropunopumiwupatolisila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/90591362641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/alberta_bill_of_sale_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67257536452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/61998127705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/lowrance_hds9_gen2_touch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/tewarejugusalajogot.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000491a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x491A 4928 bytes
SHA-256: c1158e409508b2dbf141198552c9856ecc76d0a131c57c14c75a1735999f98ce
font_01_sfnt_off000059e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 9968 bytes
SHA-256: 33486892cd71d66014e4e017951fa8de68da341c394bd2028d85f77638148318
font_02_sfnt_off00007c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C02 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34