Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a52dc16819938a…

MALICIOUS

PDF

52.9 KB Created: 2020-08-18 15:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c564a6ec079a07425440522dec07b372 SHA-1: 7835537e62f4cf6882998bac662b72acf9df6dae SHA-256: 46a52dc16819938a77ba33237049e99e04fbc7e7255b792240fd82a3fd1365a6
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure related to an 'Amex credit card application form' and embeds numerous links, including one pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the link leads to malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=amex+credit+card+application+form In PDF document text
    • http://files.faithfullyfitforlife.com/uploads/1/3/1/3/131398308/8e7cdb12c2a.pdfIn PDF document text
    • http://files.acebrasstrio.com/uploads/1/3/1/3/131398236/8cf92bfcc.pdfIn PDF document text
    • http://files.triciarose.com/uploads/1/3/0/8/130813364/1552950.pdfIn PDF document text
    • http://figudino.plasticfreegreece.com/uploads/1/3/0/7/130776021/mezug.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/1/0434/5580/7654/files/fevufesutiguleba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8091/3830/files/e_h_coriolis_flow_meter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7787/6377/files/xikozex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0435/files/30864930255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/3001752345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/xesinejubibuwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/nalufud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/14939322138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8461/9681/files/57228550326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6743/9259/files/tanuranedozal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/panotupid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/10244725669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/us_map_with_cities.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_off00008f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F33 5180 bytes
SHA-256: 2c4020aafdb7608d6cb1a5a429db848357b29a9dda0d566b87ebe70b86945cc5
font_01_sfnt_off0000a0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0BB 10908 bytes
SHA-256: 9c384af301309819e51377547153a618350f5f5dc896a2913955dbd4ea1a9777