Malicious PDF — malware analysis report

Static analysis result for SHA-256 f891d832422bcf4d…

MALICIOUS

PDF

43.8 KB Created: 2020-08-25 06:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d4686248b65e0d39b335082fde5b443 SHA-1: c2a24ce2f5f7219bd5d349ba194ea7f74fe47e0d SHA-256: f891d832422bcf4dadc2c7072df01c5f03c0c22e421a1c012354dbba6cc38bbe
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a tactic to manipulate search results or distribute malicious content. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=android+navigation+component+with+bottom+navigation'. The document body itself is heavily obfuscated but contains references to the same URLs.

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=android+navigation+component+with+bottom+navigation In PDF document text
    • http://wifozaxox.straitduckguideservice.com/uploads/1/3/2/7/132712615/6109912.pdfIn PDF document text
    • http://pemusu.topcatswing.com/uploads/1/3/0/8/130813054/jorajebureninuraten.pdfIn PDF document text
    • http://files.fusiondancefest.com/uploads/1/3/1/3/131379443/xilexuletuxen.pdfIn PDF document text
    • http://gomamu.culturalkapital.com/uploads/1/3/2/6/132681192/mobuwumuwisipudelafi.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/1/0429/1022/0447/files/19415973642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/a_an_the_zero_article_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6520/5141/files/jokugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2221/9421/files/51268907220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/jim_matheson_twitter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/diablo_2_respec.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/21538263353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pazutorigixasozesilax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/zalesipukafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/56595131205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/wolera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/dunanaxapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/facebook_open_graph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6689/files/bebetutatosinerujiw.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_off00006af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF5 5556 bytes
SHA-256: f92537e66af7d8089bd686bf8f96b1bc15b722d88a6f5f3358f338943f3bacf1
font_01_sfnt_off00007dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBF 10712 bytes
SHA-256: 441fdf77c726013ffb6b8d73252cb6ba8c4bb45bd5a9cbc96b75b1fc3d17c55e