Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab825356cc69fa49…

MALICIOUS

PDF

69.2 KB Created: 2020-08-11 05:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52e93a34ce7a1bd8d578c37b51715ab1 SHA-1: 062cd7fb7d2e8f7bf36673c8cd74c31fadb31f9b SHA-256: ab825356cc69fa493de7ea19561ff1ff71128748d65d18c9e487276e14417615
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.com/wb?keyword=financial%20risk%20management%20pdf%20drive', is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains this URL, suggesting a lure to a malicious site disguised as a financial document. The PDF also contains a large number of external links, characteristic of SEO spam or link farms, further supporting a malicious redirection scheme.

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=financial%20risk%20management%20pdf%20drive In PDF document text
    • http://files.ancestorsinmyattic.com/uploads/1/3/1/3/131383648/6672627.pdfIn PDF document text
    • http://mafokino.purplemegreen.com/uploads/1/3/0/8/130814297/verapuniladosupobun.pdfIn PDF document text
    • http://files.dannyanthonywritings.com/uploads/1/3/2/7/132740291/duwevekimizak-lomizinijujaguk.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/1/0430/3015/1330/files/83023233473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/65558471531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/koxidusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/62159835193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8164/6758/files/80250222454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5822/4549/files/jigefugadadede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/57649046510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/lonositidof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3707/3314/files/rectifier_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69651331918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29529942485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/afro_asian_literature.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 5

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_off0000d13f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13F 5556 bytes
SHA-256: ee1c6c859893d5c7d6b6db21d7d7ed7604b346c9a9cfe60fb63ce2670af9d8a7
font_01_sfnt_off0000e414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE414 10500 bytes
SHA-256: d4af101db51569f8e5a95a9014e0a271965c417acec5b11d3937e25d5cc1cc6d

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