Malicious PDF — malware analysis report

Static analysis result for SHA-256 15887e457700cf01…

MALICIOUS

PDF

41.7 KB Created: 2020-08-03 07:39:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1df1f71c926aace69e925fca3421f546 SHA-1: 0fb3c3f8f6302f8676d0eda9247aff413a02446c SHA-256: 15887e457700cf014c4f908c09337aaf1fc59a6e32bbbf4bfe8faf9ea2dda455
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URLs, particularly the one pointing to 'ttraff.cc', are identified as known malicious redirectors. The document body, though partially corrupted, contains text related to 'credit card authorization form template' and the malicious URL, reinforcing the phishing lure.

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=credit+card+authorization+form+template In PDF document text
    • http://files.paigeeverson.com/uploads/1/3/2/7/132740362/20b58b5573b.pdfIn PDF document text
    • http://files.hawaiihomeschoolnetwork.com/uploads/1/3/1/8/131856353/sudazo.pdfIn PDF document text
    • http://files.creativeresourcesinc.net/uploads/1/3/0/9/130969352/toxemadipim.pdfIn PDF document text
    • http://muwizajuf.petesenoffphotographics.com/uploads/1/3/0/8/130813509/4563294833533a.pdfIn PDF document text
    • http://files.landseasurveys.com/uploads/1/3/0/7/130739369/dixezesakete.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/1/0434/6524/4832/files/21302404271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/51556814605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/rifenebamules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/porikijepewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/xugagof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2854/files/10938756446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3903/9388/files/wilcom_embroidery_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/ruwona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/49327604681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/potewopisadik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/tsp_form_70.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

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000647c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 5172 bytes
SHA-256: db339f87fadcda0681422c04405d90512c719e6686e5cf099d9cd015cc8cb0a6
font_01_sfnt_off000075ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EE 10564 bytes
SHA-256: 6de86c9bba1057678d3830f07123857bfc9c9699c9ecd75fbf5dd9cadbd384ab

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