Malicious PDF — malware analysis report

Static analysis result for SHA-256 caba617dcc50c4c0…

MALICIOUS

PDF

37.5 KB Created: 2020-08-17 04:47:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 460ea97e385821d2b832d543cc66d348 SHA-1: 6de54eb19bf0e29f5e5b18f06ef147eae1d76b27 SHA-256: caba617dcc50c4c0f610678b716674f6566343a2016eeef0a9586761cc432e21
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a keyword suggesting a lure for an Adobe Reader update. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDF files, indicating a link farm strategy. The primary intent appears to be redirecting the user to malicious infrastructure to download further payloads.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=adobe+reader++win+8 In PDF document text
    • http://vuxenuvif.coachchriscampbell.com/uploads/1/3/2/7/132712358/ximajese-fewapone.pdfIn PDF document text
    • http://zivib.bensalmon.org/uploads/1/3/0/8/130814328/zukunez_kozemumo_sipibumeginako_lagojon.pdfIn PDF document text
    • http://files.marianimediation.com/uploads/1/3/1/4/131406437/b7fec3857.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/1/0431/6351/7092/files/concept_of_electrical_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5156/5724/files/mebitimojevulidabedilofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/zoxinofojekeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/internalization_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6232/8472/files/87871928468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/92300560327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/94708535364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/kodomo_no_omocha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5227/7670/files/78845122509.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_off00005661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5661 5024 bytes
SHA-256: f4a596bc6b84f9d82f31e4a2cbdcb4023343345a3d1d4a0b6bf07ba5bb477e80
font_01_sfnt_off00006791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6791 9980 bytes
SHA-256: b9c543b726bcd9d2e72ba42c609c4546e5c136dcb947cfd1b6f055be84bfe719

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