Malicious PDF — malware analysis report

Static analysis result for SHA-256 24dd91c356f658dd…

MALICIOUS

PDF

47.5 KB Created: 2020-08-31 02:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 073cd18d9a514eb88b6f9ce99c0c625e SHA-1: 8dc3409eeaabf368520e698c5ef7d3100d6de6ed SHA-256: 24dd91c356f658dd52abfab79ba031a756851dd3276f7efa8512fb346e881d13
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=rubber+band+weaving+loom+instruction'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0430/8946/1410/files/14664135343.pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to external malicious content.

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/wix?keyword=rubber+band+weaving+loom+instruction In 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/1/0430/8946/1410/files/14664135343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/82938611979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1555/2672/files/92701828537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3651/6250/files/67836995335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8036/7780/files/play_playstation_2_emulator_for_android.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bf650e_04f7d96977564311ba94712f9c5c2fb3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_aa4956cd0a6c44faac8d2f66fbb55a3b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2f8cea_8278012f9d5642579c3e5cd9bf7ae315.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/097bd5_67848763ec9e40a1aec3c1efd94a1529.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/79e0dc_c56c5050423842f39088100d6986383e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3826db_aa50cdaa8eb54c43b9e90c23f563d452.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_8432177643f44956bbf81b136dba065b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b28561_7f3a79d07a4f4987af9e3ee797069325.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6415 5556 bytes
SHA-256: f102d0fd3e0eac84a9d8230f49e5ae276a4b241f33a497d3a29d21f33bff0810
font_01_sfnt_off000076f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F4 10232 bytes
SHA-256: 1a51ef6735b4f94c07eb3524b054009ee56d87cbe7341c5828d4a02f44ee0957
font_02_sfnt_off00009a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A24 16448 bytes
SHA-256: 4d0b7fceb6e0b8544dba10d314310d86ee7e0ac375a8e3b5fd915ca5fa71995c

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