Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcece2d098801c18…

MALICIOUS

PDF

46.8 KB Created: 2020-08-28 06:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0996276f89c445a5e5a4eadecdcae790 SHA-1: 589a8f2d6f5cbc4d07e9c3ffaf8bca092cf0da6c SHA-256: dcece2d098801c189540cae184e090609574d5f8c9e06021dd0018dd91d7c02e
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many pointing to Shopify domains, but one critical URL at ttraff.ru is identified as a malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary purpose is to lure users to this redirector, likely for a phishing or malware distribution campaign. No scripts were extracted from this sample.

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=ducktales+2018+episode+guide In PDF document text
    • http://files.lisarcoons.com/uploads/1/3/1/3/131384127/851c4ce569240.pdfIn PDF document text
    • http://files.pcarep.com/uploads/1/3/0/7/130776542/kegufateren-rogujemufozexop.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/1/0430/7940/1634/files/23585872247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/47845251403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1312/7835/files/rezokusak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4161/1159/files/anatomie_de_l_appareil_gnital_masculin_et_fminin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0802/3966/files/72424887815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/85046920317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/general_mathematics_textbook_grade_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9303/3117/files/wopovobuwetorunagix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7074967355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/tawoxepil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/74290396385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/geligup.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 4

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_off000076f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F4 5728 bytes
SHA-256: 52436f925f92be51409feaf707dad20fcdf9bba406b4650f23f81fffac95af01
font_01_sfnt_off00008a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A95 10580 bytes
SHA-256: 3b907ce628a15ee563d62248f108c2ba62525c30f772e1633f9907566da7ac94

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