Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8112e90a3464672…

MALICIOUS

PDF

39.9 KB Created: 2020-08-19 08:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b02466be665d89b56790c06f57f9a765 SHA-1: 3ffa341a69a94cf868135e3dde8ae5436db3f778 SHA-256: b8112e90a3464672769d66335ecbf46350f86965748fb0319264c502aee23a48
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious due to a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body contains garbled text but also includes the URL 'https://ttraff.ru/pify?keyword=partners+in+performance+america', which is identified as a malicious redirector. The presence of a link farm suggests an attempt to distribute malicious content or phish users. No scripts were extracted from this sample.

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=partners+in+performance+america In PDF document text
    • http://fokepu.physiciansprimarycare.org/uploads/1/3/0/8/130814238/sajumewijesos-bemupud.pdfIn PDF document text
    • http://files.southernstyledevents.com/uploads/1/3/1/1/131163635/4efe38d.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/1/0428/9835/8432/files/61259485886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1613/1484/files/gejewakij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6119/6440/files/arkham_origins_cold_cold_heart_dlc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8879/6065/files/diweserixazipanomafetoxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4456/7197/files/cards_against_muggles_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0932/5730/files/nukanojasalododudufuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8232/files/disukupiguwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/xeviderinamupolobaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9365/9543/files/advanced_java_tutorial_tutorialspoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/botanica_oculta_paracelso.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_off00005ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED3 5128 bytes
SHA-256: b30bb6ae1ae4f5ea45af5928fedd2b5a47f41b80c4308c14ea95281e269146d7
font_01_sfnt_off00007029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7029 10248 bytes
SHA-256: ad0f1429a720ac5860029e336e5786b194688161dd69ddc73e55ef41da46eee6

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