Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3638468dda4b0e6…

MALICIOUS

PDF

45.5 KB Created: 2020-08-04 01:10:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8795252939c6fec460fa2a8cc2ab8485 SHA-1: e93f0ef20f0536317389206595c40635c93fe715 SHA-256: c3638468dda4b0e6e41d6b3dfe88166d8743b7e5287c852aedd82a707d386f21
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=trader+vic+s+bartender+s+guide+pdf, is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the URL, reinforcing the malicious intent. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=trader+vic+s+bartender+s+guide+pdf In PDF document text
    • http://files.smallcityvinyl.com/uploads/1/3/2/8/132814166/bomupekawe_megabujakej_negurapiruwu_lozawufe.pdfIn PDF document text
    • http://files.staceydenny.com/uploads/1/3/1/3/131380345/7430454.pdfIn PDF document text
    • http://mufibuzex.ferrotrend.sk/uploads/1/3/1/4/131483154/f1b43c00f10f.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/1/0432/4343/8244/files/89887151259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9733/3664/files/kurod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/varudoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/67495801188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/26299465244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/jogovomunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6570/3590/files/kemosuniloxogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/arioso_bach_viola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2798/8634/files/numon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/19862847806.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BD 5440 bytes
SHA-256: 01ad7d8c5d42ac059c52d7518bb0053ad0aed0006abf9ddabba1e1e339047a89
font_01_sfnt_off0000854e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854E 10420 bytes
SHA-256: d0549906a41ca957b7bbc847b72e6a5d07436f82ecd52410a0554b681ffe8ab1

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