Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fff5e73cde2c039…

MALICIOUS

PDF

38.5 KB Created: 2020-07-31 12:51:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59997d4151db0f2333de1e42678fba2d SHA-1: 99eb2e17b67bb9231e37e6e39a1827cc6385a494 SHA-256: 3fff5e73cde2c039f6cb8e900544530fe9794d887a5a1e85b50f75f719dca639
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=code+128+generator+pdf'. Another critical heuristic indicates a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0430/4538/8437/files/40657063839.pdf' being one of many such links. The document body, though heavily obfuscated, contains text related to 'Code 128 generator pdf', suggesting a lure to disguise the malicious intent.

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=code+128+generator+pdf In PDF document text
    • http://files.iamlovedministry.com/uploads/1/3/1/8/131856288/mumono.pdfIn PDF document text
    • http://files.thehigginsreport.com/uploads/1/3/0/7/130775750/jeruzenabadimo_dubil.pdfIn PDF document text
    • http://files.satphones.com/uploads/1/3/1/6/131637658/6932170.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/1/0430/4538/8437/files/40657063839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9753/8203/files/66088913464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7752/3873/files/94316617183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/dupapowupoteg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/ketozizaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3949/6094/files/rikebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/zezoxelafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/12173610211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/govowipurise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6406/6209/files/nobavabibemitipokawufima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/5757300648.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_off0000596b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x596B 5140 bytes
SHA-256: ac9da686196bf9f8a779dd765b73063fafabea697ace5d6309fdac641328e9c5
font_01_sfnt_off00006af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF6 10000 bytes
SHA-256: 7d4f9a7714290efb45300a51e84e1bd12c07d91d8e4b5aef04bc2d978b2ad886

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