Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ac72bd57dd49edc…

MALICIOUS

PDF

73.4 KB Created: 2020-08-14 09:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83e24a2df0e3f5f807128121fa494841 SHA-1: b413d41e2ebfbd9878a717e725f1ad43b0c236b0 SHA-256: 6ac72bd57dd49edc1c463e7915a0674d0dd6427708c4cdcd3b24ef6388bbdb74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious infrastructure at 'ttraff.ru'. This is a common tactic for phishing or malware distribution, masquerading as a "marketing management book pdf" to entice clicks. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links confirms a malicious intent to lead the user to a harmful destination.

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/wb?keyword=marketing%20management%20book%20pdf In PDF document text
    • http://files.wonderfullymadebirthdoula.com/uploads/1/3/0/8/130874610/sizoponuroxax.pdfIn PDF document text
    • http://files.mayamuir.com/uploads/1/3/1/4/131454034/sivakujaniga.pdfIn PDF document text
    • http://wopiweta.lcpiano.studio/uploads/1/3/1/3/131380086/3ec02524fb62c.pdfIn PDF document text
    • http://files.joyneruphorsemanship.com/uploads/1/3/0/7/130739971/f62e75.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/1/0429/7215/1959/files/6570048109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/58627911668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/20271113070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0225/5770/files/56295946766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/vegezexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3756/files/feruwenawizesuvekixag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4794/2294/files/70209640995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/kugukinefuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/wow_sunken_temple.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 6

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_off0000e3c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C6 5360 bytes
SHA-256: 959a5b712dc5da46968333c3324a317684f6bb9da3f10d5a281c109b6b60c856
font_01_sfnt_off0000f5ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5EE 10184 bytes
SHA-256: f12df946808f98c5ab111dd4c0a1717c6d5d741cc235fbc31abae1dde81588d3

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