Malicious PDF — malware analysis report

Static analysis result for SHA-256 5accd9004d19f839…

MALICIOUS

PDF

57.1 KB Created: 2020-07-29 20:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63e4204d5a7e8590a3d7f736d2ffa3f9 SHA-1: 58105c95538c8eca371c6c46d76c09c17001bb1d SHA-256: 5accd9004d19f8392bf090492dc8dd9b1ee37d4cd779076be9c58f3082cbca18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. This indicates a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier also strongly indicated maliciousness.

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=research+methods+in+biological+psychology+pdf In PDF document text
    • http://files.wallaceandfeldman.com/uploads/1/3/0/7/130775813/kajulinaxuwikup-jerasezejolo-fujifomajavexif-medofos.pdfIn PDF document text
    • http://files.hellapure.com/uploads/1/3/0/8/130873810/bibuwakakeviza.pdfIn PDF document text
    • http://files.pastorodc.com/uploads/1/3/1/4/131406507/mifuroxilimubi.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/1/0437/1018/5637/files/27321384855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/80320579555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/zekibalilosaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/kobazaban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/8032513245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4604/files/nenutinexabamosesujunag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/xowoliterexidugaxosamaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/zovebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/tobazarenazuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/65982560913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/bipoletuvulokutikudiziriz.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_off0000a001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA001 5604 bytes
SHA-256: dc88013c861bb35c2f30c4ef1ae96d5e2d5e2f6b406359811e06be1a130d46e0
font_01_sfnt_off0000b2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2EA 10112 bytes
SHA-256: d4fedeafad6d66baf3e3c3075de32271d4732eb5924c523891bc94aa383e2dab

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