Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a9e4645e172d79a…

MALICIOUS

PDF

93.6 KB Created: 2020-08-09 10:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6ba111b797df4e8ee14ea1a44880f01 SHA-1: d404571d395df391788b41258f72c3375b8b89c7 SHA-256: 0a9e4645e172d79ad8bad85814f7bb5a8a5d7bc8cc253c6dd37cd9a8df268f23
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains embedded links that redirect to a known malicious domain, ttraff.com, which is flagged as a redirector for malicious purposes. The document body, though heavily obfuscated, contains the lure 'Ansel adams biography pdf' and a reference to the malicious URL, suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=ansel+adams+biography+pdf In PDF document text
    • http://files.mindfulthanet.com/uploads/1/3/0/7/130739204/c4582d6281f4d.pdfIn PDF document text
    • http://files.franciscoriosanderson.com/uploads/1/3/2/6/132681392/ecab6040a6.pdfIn PDF document text
    • http://files.beautyequipmentcenter.com/uploads/1/3/1/4/131453574/ba8e972fb8.pdfIn PDF document text
    • http://files.arshadsaeed.com/uploads/1/3/2/7/132740234/xipobeligonone.pdfIn PDF document text
    • http://files.summitsalesrecruiting.com/uploads/1/3/2/6/132681303/3252394.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/rasamonuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1389/7368/files/glencoe_algebra_1_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/best_argumentative_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/89433743240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0795/0495/files/98033439007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/zixodixomisarefidosowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1764/7766/files/51464788372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/merajivixulawewaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17673355306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/12398799132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33435760041.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001252c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1252C 3464 bytes
SHA-256: d43117925386f3fd87b9132184bd7ccb04ccdf9568ff522bbbebf0bf4e390931
font_01_sfnt_off00013184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13184 5688 bytes
SHA-256: 268a33284ceaa257f0bc857a9eca497e870c196c6f5faceab060f1e31efcd669
font_02_sfnt_off000144bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144BC 10508 bytes
SHA-256: 3280f91829c91c289084f1eb7c1f1d5dd0133e3ec204b2198614eda2ba3dcc2e