Malicious PDF — malware analysis report

Static analysis result for SHA-256 0751f23cc79f6689…

MALICIOUS

PDF

40.0 KB Created: 2020-08-25 00:25:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcaf6b84b94dfa2fa2ab6a4e9377088f SHA-1: 0abb21e21de032c84bb082bf48085995f3ac0e2f SHA-256: 0751f23cc79f6689a236e62a9eba2b69421bcf346ab2c1785a1aa670864b905d
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious URL, likely for phishing or malware distribution. The document body, though obfuscated, contains the URL 'https://ttraff.com/pify?keyword=answering+the+phone+at+work+script', suggesting a lure related to a work script. The presence of numerous PDF links and a malicious redirector indicates a campaign to drive traffic to 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=answering+the+phone+at+work+script In PDF document text
    • http://files.alliedrenew.com/uploads/1/3/0/8/130814169/944229b2.pdfIn PDF document text
    • http://nodumo.columbia125.org/uploads/1/3/0/8/130874064/kumomikivomebu_berosixed_jinutox_pibigam.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/1/0430/7025/9357/files/27308015054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/62841201178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/5767/6193/files/rofofaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9751/2354/files/90992541399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/doxexarav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0912/0152/files/39493499746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/astronomy_today_mcmillan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9621/files/80917083121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2595/4973/files/vatamunerarik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1975/3879/files/37237946303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7043/7016/files/12299355474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/wosofawitavubolotejugabi.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 4

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_off00005f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 5308 bytes
SHA-256: 5acc43a1ad314fddf8de1d555d44568b04ee216bf5e71169a15c639172946b9c
font_01_sfnt_off0000712d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712D 10000 bytes
SHA-256: 9ee88abe5c0de8a74b505ec360087b413a19db528b1f6b9f6c4e8ece1872ede7

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