Malicious PDF — malware analysis report

Static analysis result for SHA-256 756a6841e346583c…

MALICIOUS

PDF

51.0 KB Created: 2020-08-13 09:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c08f0e8cc91ee773d2af1bae5248238e SHA-1: 2363d5c07d452178ca3d383628c8e8528beba971 SHA-256: 756a6841e346583cd8eb24f1db9c1624a683673adf78a442c1b11a7176901a24
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. This indicates an attempt to direct users to a harmful site, likely for phishing or to download further malware. The presence of a link farm further supports this 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/wb?keyword=poaceae%20family%20pdf In PDF document text
    • http://gedira.pipersnectar.com/uploads/1/3/1/4/131452903/00ab9.pdfIn PDF document text
    • http://files.myveganlife.ca/uploads/1/3/0/7/130776054/9972408.pdfIn PDF document text
    • http://files.patriciagriffinceramics.com/uploads/1/3/1/3/131380688/dezegej-mojeg-volugizat.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/1/0429/8339/1395/files/37376254583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/29566554975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2062/3765/files/99033107484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/dodozove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4909/8148/files/75134187956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/fapojafotopumanokufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/44230272036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/inorganic_chemistry_full_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/sezalafif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/madaxabex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/33625392120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7588/7523/files/87134682411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5536/6822/files/eazy_duz_it_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3496/files/35478062255.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_off00008aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA8 5132 bytes
SHA-256: 910b3cc92e3d08c362b25ded2f9563506736e347717ff608bc269084a224f50d
font_01_sfnt_off00009c14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C14 10192 bytes
SHA-256: 45a1805909a6dfe724d68f2ab3df829f712ffe76189fa084a3aa6eefc5ef66fe

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