Malicious PDF — malware analysis report

Static analysis result for SHA-256 174ea8657c59e4cb…

MALICIOUS

PDF

45.8 KB Created: 2020-08-02 03:48:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 425462d9702b5f8aeb47d7df6600987e SHA-1: b333a199d843949ecee189e16b5642558478fed0 SHA-256: 174ea8657c59e4cb80670ed5c832f39c2e5860870749e2d7e3e56c7c6baca581
194 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains text related to weather and a URL that matches the redirector. This suggests a phishing attempt to direct users to malicious infrastructure.

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.ru/pify?keyword=weather+moscow+idaho In PDF document text
    • http://files.portaverdestudio.com/uploads/1/3/1/4/131406092/2300797.pdfIn PDF document text
    • http://files.missiowaresourceportal.com/uploads/1/3/1/3/131398008/1318821813383.pdfIn PDF document text
    • http://files.margaretwebblifecoach.com/uploads/1/3/1/6/131606411/8997556.pdfIn PDF document text
    • http://files.cccjac.org/uploads/1/3/1/0/131070911/todafu.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/1/0432/1237/4174/files/1960_chevy_bel_air.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7134/8641/files/vovirufonakevakaxokutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/ruwizunaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/50575152691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2370/3969/files/e6_98_a5_e8_8a_82.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/9106759489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/suzujakimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7232/3737/files/vitenatuvorizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3058/5239/files/kasitilodivajidiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/94324145328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/vefana.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 2

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_off00007554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7554 5252 bytes
SHA-256: 431f5af04539a05c8ea13661ad015693236c3da5778744b32279252d0c5c1211
font_01_sfnt_off0000871a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871A 10272 bytes
SHA-256: ab11e26ccc89ed8d41cc5082f9d88e4869bd0ffa7a5d6a5be93f3d0140bfc0a2

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