Malicious PDF — malware analysis report

Static analysis result for SHA-256 24c144a8baab1f4a…

MALICIOUS

PDF

130.8 KB Created: 2020-08-04 03:18:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce954301a6dfa0dd467f77b74e0acab9 SHA-1: 047d676b48720f2a97fd5e4027a0ad4614d8bed1 SHA-256: 24c144a8baab1f4a91159d5309b84e4b1302bc4abeab1bfaa2153da06f2c9011
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users into clicking links. The embedded URL and the document body text both point to a link that redirects to 'ttraff.com', which is flagged as a malicious redirector. This suggests the document is part of a phishing or scam campaign, likely attempting to deliver a second-stage payload or lead users to a fraudulent site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=alfred+hitchcock+biography+pdf In PDF document text
    • http://files.myworldimage-nordic.com/uploads/1/3/1/1/131163599/rutukubibi-fibenetubo.pdfIn PDF document text
    • http://files.yohannaescamilla.com/uploads/1/3/1/3/131379939/guwaja_vodesetotibuz_rebudotenoded.pdfIn PDF document text
    • http://files.eosystems.com/uploads/1/3/1/3/131379830/guguzipilew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/5507260248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/sanadexebusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/23251263417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/hvac_systems_design_handbook_fourth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/80790389005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/55411481575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/linogewafevumedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7716/3416/files/fijegezuvajuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7952/2714/files/fusazetisatuwegavafawujal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ba7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BA7C 5216 bytes
SHA-256: 95e80a438fef20b9db053b921e7d68e6d042183d81f76b1cc5607bed87ca086a
font_01_sfnt_off0001cc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CC4B 10400 bytes
SHA-256: f1ca3cbf5410a90d934be0f1168c8267692794cea27573af2bb2fbf03a5a74d3
font_02_sfnt_off0001efee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EFEE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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