Malicious PDF — malware analysis report

Static analysis result for SHA-256 924d57e9ce235f23…

MALICIOUS

PDF

45.5 KB Created: 2020-08-18 18:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c04c3632a44daa658a4ef8585707868e SHA-1: ef908106fee9e3a60d58c872bb3cd0079d5a9521 SHA-256: 924d57e9ce235f23c35bfaf8bac4db28b084850b7121344d4d45822e53b4a563
202 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector infrastructure, specifically 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to an 'Environmental impact report cost' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise malicious links. The presence of a large number of external PDF links, many pointing to Shopify domains, indicates a link farm designed to obscure the ultimate destination.

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=environmental+impact+report+cost In PDF document text
    • http://files.rockingcleatherandboutique.com/uploads/1/3/1/3/131383510/7375545.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/1/0431/8461/9681/files/54122174476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3466/4347/files/larananiwonezasagopakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9167/3763/files/33298472391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ferenap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7595/9973/files/applications_of_differentiation_and_integration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/80s_drum_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/10043881574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/nitriding_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/38332943313.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_off00007490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7490 5096 bytes
SHA-256: 62a57c955190fe88c8cd09f6ba6052a1d236e993b410cdd2f87fa0b8c7a71c40
font_01_sfnt_off000085cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CC 10352 bytes
SHA-256: 2a31e6e8f82503dbdc8368f8fc763c1b3db46f51bda4885c24aad018d7933fd6

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