Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf77095d72f7a0f6…

MALICIOUS

PDF

44.0 KB Created: 2020-08-04 23:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03f005c029e3f2a457fbc6e23594530f SHA-1: a34e68e72ea0c07fd7ac03f377e4b4b525b63b8d SHA-256: bf77095d72f7a0f64fcc5eaedde722a38c1ee1557c76c17e3eb4ff96aed3787c
202 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination. The document also contains a mass of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or to distribute further malicious content. The presence of urgency language further supports a phishing or scam attempt. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=vomiting+child+pdf In PDF document text
    • http://files.ogetigers.com/uploads/1/3/1/1/131164250/b02a2.pdfIn PDF document text
    • http://files.northwoodsquiltguild.net/uploads/1/3/0/7/130775649/negavuludi.pdfIn PDF document text
    • http://files.karenglinski.com/uploads/1/3/1/3/131398139/xasujurapekaligoj.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/1/0431/4903/3640/files/57013293877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/gogijisup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/55270705814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3496/files/47642405944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/89691934455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/mizosalewadedumaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5217/9364/files/python_ldap_authentication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/faxewegivafar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8790/5446/files/niwateni.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 8

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_off00006ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFB 5052 bytes
SHA-256: d5bc4bb2e7fd083800722bb964ecacbb22a3d094abf8896e0d19e4b7a27d21f6
font_01_sfnt_off00008115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8115 10076 bytes
SHA-256: 1ef236f1151b6a1be3cfaa08931b4762a5441d70aae437de75f381f79fca2830

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