Malicious PDF — malware analysis report

Static analysis result for SHA-256 743b48aa6a56225b…

MALICIOUS

PDF

46.0 KB Created: 2020-08-02 12:05:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7135b212fe559ca6b42b0b150a5067dc SHA-1: 794be47860b865483eb7c4a9d72bf6cecec6879c SHA-256: 743b48aa6a56225b86de4099bc305798b5305c89649cbd200f30f8f51b8a7480
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to a redirector service and a link farm. The primary redirector URL is 'https://ttraff.ru/pify?keyword=software+serial+keys', which is flagged as malicious. This suggests the document is part of a phishing or SEO manipulation scheme, likely intended to drive traffic to malicious sites or distribute further malware.

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=software+serial+keys In PDF document text
    • http://files.lowvisionnd.com/uploads/1/3/2/7/132741089/2268120.pdfIn PDF document text
    • http://files.ledger5properties.com/uploads/1/3/1/8/131871501/6777032.pdfIn PDF document text
    • http://files.younglifeeastmanatee.org/uploads/1/3/0/8/130874490/fa7b36cfa6c1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7124/files/vototuxukut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6661/2130/files/kawen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/binawanoxolaluvili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/7607410206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1309/5067/files/15743264858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/king_lil_g_mixtape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/96146398952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/13784958007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/zaziwovadagejonekipep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/11965825459.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A98 4804 bytes
SHA-256: 4c87c05df32476ca16ddc9f2b94be39f433cf7c03c24b7b1d4d9bf0316af98bd
font_01_sfnt_off00007b0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B0C 9900 bytes
SHA-256: 9c8a82db82466d9c9e1da129cbc6443833568cd84f3a23b74bd97f501ad60409
font_02_sfnt_off00009ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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