Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e18f0d24b2e88ec…

MALICIOUS

PDF

44.9 KB Created: 2020-08-24 03:32:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a19de6e6b64c24ca0a29d979caeb1be SHA-1: 1e64ebe5810c175578ed558f5376fa1db5cf9038 SHA-256: 4e18f0d24b2e88ecfcfc50a71ecf27ba08b60e3a0397f2c69eea56155a1ab08c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL and references an IQ test, suggesting a social engineering lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to obscure the malicious redirector. 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=general+iq+test+questions+and+answers+pdf In PDF document text
    • http://salotavu.northwoodilluminations.com/uploads/1/3/1/6/131606055/1dff61d5046dc4.pdfIn PDF document text
    • http://files.theriverrunsthroughus.uk/uploads/1/3/0/7/130775186/zivuvuluja_surilan.pdfIn PDF document text
    • http://files.exploringteacher.com/uploads/1/3/2/6/132682655/5bcc1.pdfIn PDF document text
    • http://vikidawap.indigoroadstudio.com/uploads/1/3/0/8/130814328/sekinasivumukukoneg.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/1/0437/4839/3112/files/90491944838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/fisumubet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/92890540859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8512/2984/files/mourning_ends_part_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5753/files/bizudunekulezujuzuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6440/files/36958652988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8194/8567/files/riwuduleguzoninatufugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/15964397547.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 6

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_off00006ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFA 5284 bytes
SHA-256: 6e59f96339f9646522f2b0023755c94560a4ffc8a91b12abbc936ae08350b2ff
font_01_sfnt_off0000821a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821A 10860 bytes
SHA-256: c9c9658c4a7b0d8eaf7eb2ee7f20770f05af3a8f4263412ab7dc33c692fcf957

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