Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb5f573d8b23fd8…

MALICIOUS

PDF

44.9 KB Created: 2020-08-20 01:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 019a691e10e6125302ec1d3abb3f3a6f SHA-1: 4f854ae7266f87dac812064ac86fbc209be77871 SHA-256: bdb5f573d8b23fd8b8b30425f54d63c6f8c86c30aa691e7cd668e4daa00bb5cd
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to direct users to malicious sites. One of these links, 'https://ttraff.com/pify?keyword=celestine+donkor+songs+video', points to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The document body contains garbled text but also includes the malicious URL and several other URLs hosted on shopify.com, some of which are benign.

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.com/pify?keyword=celestine+donkor+songs+video In PDF document text
    • http://kuzaj.alfiesearthwork.com/uploads/1/3/1/3/131398455/tukikofujaraxuko.pdfIn PDF document text
    • http://files.hustlinhawkbands.com/uploads/1/3/0/7/130739740/kirunazam-gasuzelaxaluleg-rapepopawefivuv.pdfIn PDF document text
    • http://nakedawon.mcnealpto.org/uploads/1/3/0/7/130739090/xinomategofokufew.pdfIn PDF document text
    • http://files.straighttothebar.nl/uploads/1/3/1/4/131438175/8078244.pdfIn PDF document text
    • http://garemere.deadbeatphotography.com/uploads/1/3/2/6/132681812/2797433.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/1/0433/2116/3941/files/pile_driver_sex_position.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/aptis_listening_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0655/7347/files/fuel_cell_fundamentals_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/ripabaratitidege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4435/files/human_physiology_book_cc_chatterjee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2182/7239/files/reliability_centred_maintenance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/defupon.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 2

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_off00006696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6696 4716 bytes
SHA-256: e72654c67f65d67f0bdb2381682010659e136ec5ae94b80c0b285921d0fff773
font_01_sfnt_off000076b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 10012 bytes
SHA-256: 95d7902efd978121c6ad650120e969e10c10ff2b3b72ca3fa007fc9566b29e40
font_02_sfnt_off000098f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F7 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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