Malicious PDF — malware analysis report

Static analysis result for SHA-256 729a079970898cf4…

MALICIOUS

PDF

52.5 KB Created: 2020-07-27 21:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8236b9ab5d371b201dea150b54fb819 SHA-1: c98cced903b3033d062a8cc7223b0d7899102820 SHA-256: 729a079970898cf4b5f94b599bedd6b68f97173d894ace320e6eb032e361e515
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service (ttraff.com) which is flagged as malicious. These links are presented in a way that suggests a free download, likely a phishing lure. The ML classifier strongly indicates maliciousness, and the presence of numerous embedded links points to a link farm or SEO manipulation tactic to distribute further 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/pify?keyword=2011+holden+barina+tk+manual+my11+review In PDF document text
    • http://files.mlkswim.com/uploads/1/3/1/3/131383777/sosalebazu.pdfIn PDF document text
    • http://files.aspencreekcookies.com/uploads/1/3/0/8/130873893/9997832.pdfIn PDF document text
    • http://files.ameliahamiltonfit.com/uploads/1/3/0/7/130775977/rineju.pdfIn PDF document text
    • http://files.ctlcv.org/uploads/1/3/0/8/130873855/givij.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/1/0433/0687/7080/files/40429789840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/24896168602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/48119366130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/52835156380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/tevawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0919/files/jorefagotogukarer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/pajukinebupat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/darirorebekemut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/mepazojajizawitezemol.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_off00008305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8305 5460 bytes
SHA-256: eb58c58167e1f46df885965520a9397f7810d2f084b83c19c5b11391cd49a561
font_01_sfnt_off0000956d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956D 15328 bytes
SHA-256: e747c053fe710fd95c0a0929aa41d2a4ea971611a9d52cc436a57ed081b7e54a

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