Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f358f251a7d3156…

MALICIOUS

PDF

42.1 KB Created: 2020-08-05 01:19:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 694bda9aa12d3ba1e5713b06f860d2e6 SHA-1: 603e12779aa31e4f7fa454cd7270a01530113dab SHA-256: 7f358f251a7d31560980a615eaa7e93347ee04c8baef9c91a1f7029bf76ba263
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a list of other URLs, many of which are benign Shopify links. This suggests a tactic to disguise malicious links within a larger set of seemingly legitimate ones, a common lure for phishing or malware delivery. 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.com/pify?keyword=autobiographical+narrative+pdf In PDF document text
    • http://files.hlfmgoats.com/uploads/1/3/1/3/131383553/jopaxubesoz.pdfIn PDF document text
    • http://files.customtshirts-more.com/uploads/1/3/1/8/131857419/1526649.pdfIn PDF document text
    • http://files.lindsay-hamilton.com/uploads/1/3/0/7/130739559/gupoleg-vajam-nafolagibov.pdfIn PDF document text
    • http://files.salmansoz.com/uploads/1/3/1/6/131606984/2569171.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/1/0430/6177/2442/files/36876121086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/97321723097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/92329483960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/penixosusimugotutuliruziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3638/4159/files/fuzorogos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/zar_biostatistical_analysis_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/reragijod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/mind_on_statistics_5th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/19789335521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3418/0769/files/verefokasovok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5915/8940/files/essentials_of_contemporary_management_7th_edition.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_off000065f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F5 5428 bytes
SHA-256: 0dedcfa214f3cdc8e3c94a8756f027d3a4965fc1c5dd8ee419e2283525ad6e57
font_01_sfnt_off00007871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7871 10196 bytes
SHA-256: 8028be3135e6e158e2a67104c2e63f39ea6df5684c498bdf81478202aaa219f6

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