Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0cb5b484a99369…

MALICIOUS

PDF

43.1 KB Created: 2020-08-23 05:27:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ace22962765e56be8a58056638b59ef SHA-1: 7e309f8b7f6a6457a22483f93d537315fd671ac4 SHA-256: ce0cb5b484a99369f1b95d842daae495a9de21b724f134fb5ed7715782c505d8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=identities+worksheet+answers', is identified as a malicious redirector. The document body, though heavily obfuscated, contains the text 'Identities worksheet answers', suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious.

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=identities+worksheet+answers In PDF document text
    • http://bezoku.diazcounseling.com/uploads/1/3/0/7/130775503/fb022570f237b7.pdfIn PDF document text
    • http://files.comforttrainer.net/uploads/1/3/2/6/132681002/4312007.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/1/0433/9105/8078/files/kinupalinuvawepabife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3585/files/33942655271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1702/files/kunalorufulofuxikol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/75679964198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/dowurukenafabom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/63245399240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5896/0286/files/wiwobubuwadiwepula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/33024617392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/3083706636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7999/9383/files/adventure_time_card_wars_free_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9168/1699/files/16404093846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1288/0541/files/zafovojezunuwupati.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 8

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_off00006ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD1 4972 bytes
SHA-256: 57a2322403e930d60f57e63dde9c974bfaebdb1c787e0cd32be1e77fd2910d63
font_01_sfnt_off00007bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC1 10464 bytes
SHA-256: a9e81de79f26afff32fe8c2c1981aa19ec8e082b8eb9c68ad00568e285411981

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