Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24ab979c1dd3b92…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 00:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1097fcd9862cbaaa2d0538e6909b6f7a SHA-1: a59115ef51e94eddaeb67fbe58a1124a305db7ba SHA-256: f24ab979c1dd3b92529da7e5dec8701d96837d4424af7ac0f8c4f91bba45f964
214 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though partially corrupted, contains text related to 'Assurance wireless application pdf oregon' and includes the malicious URL, suggesting a lure for a phishing or scam operation. Additionally, a heuristic for a PDF link farm was triggered, indicating the document is designed to host numerous external links, likely for SEO poisoning or distributing malicious content.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.cc/pify?keyword=assurance+wireless+application+pdf+oregon In PDF document text
    • http://sidiko.rickywhitemore.co.uk/uploads/1/3/1/6/131606069/5341401.pdfIn PDF document text
    • http://files.athenianmuse.com/uploads/1/3/1/4/131454143/0c126f.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/1/0429/4246/4166/files/mulexivila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4186/5384/files/26573657342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/19747775504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/cateterismo_vesical_de_demora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/c_boost_graph_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/newapew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/7154318695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/xivujufutoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/safaziruxanagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2798/8634/files/numon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1179/3315/files/20235358327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2358/9791/files/84570892498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/cisco_lab_book_answers.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D1 5404 bytes
SHA-256: 14669e87c9ae2fd262441914c2cbe4a3b1eb448e1fbacdfbcde9f6175333348a
font_01_sfnt_off00007953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7953 10060 bytes
SHA-256: 93ca3026837990f42b68c4bbb17b02cad607c3fa8573319b9de50b1e3f7e6b29