Malicious PDF — malware analysis report

Static analysis result for SHA-256 e62481e4cd31a3ba…

MALICIOUS

PDF

42.7 KB Created: 2020-07-31 15:30:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e25067c3234377bf042d5f9f57f60f59 SHA-1: a05e0d05829b5cbdda91d17ff142223919027c0d SHA-256: e62481e4cd31a3ba7f3ceb218556eab45b38873931fdd03878fe044e50a358c7
234 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is designed to lure users with a fake offer. The document also includes a large number of embedded links to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content. The ML classifier strongly indicated maliciousness.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=xbox+one+license+transfer In PDF document text
    • http://files.vcmg-us.com/uploads/1/3/2/3/132302732/fukekozosesibodine.pdfIn PDF document text
    • http://files.stgilespreschool.org/uploads/1/3/1/6/131637081/9ece6.pdfIn PDF document text
    • http://files.swarthmorehorticulturalsociety.org/uploads/1/3/2/6/132681670/pujalezexitebubixin.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/1/0432/7391/2488/files/53737245560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8167/files/3075238441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/97657720114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/pefuwezutanajibadedokit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1130/8696/files/toruzajefogavifubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3280/5527/files/48395062304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/29899614098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/38616007471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7405/1491/files/segexepirozatinojanus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/zosezobezunalibimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/pesanofoxinolix.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_off00006bd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD0 4848 bytes
SHA-256: 25abf61b5d03dcb8e6db050444439bbeb9792e040338197f171a0dc27b84958f
font_01_sfnt_off00007c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C44 10020 bytes
SHA-256: 7d4bdf587f25789d1c18d5b15c393e34ce4b539267968111000caa127d0bd3f2

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