Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26f614d52dced5c…

MALICIOUS

PDF

45.7 KB Created: 2020-08-25 10:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6cdbab9ee54e7df597d79cade279117 SHA-1: 0494b946be981468622a3df33dcf55d0617f1c46 SHA-256: f26f614d52dced5c7af3b77f8a764841fe0dbf92d991953684d520bc52546033
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is used in a lure for a 'dvd/cd rom driver for windows 10'. The document also contains a PDF link farm heuristic, indicating a large number of external links, many of which point to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely leads to a further malicious download or phishing page.

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=dvd%252F+cd+rom+driver+for+windows+10 In PDF document text
    • http://vimalomu.ipa-ok.com/uploads/1/3/0/7/130740074/721c700465db.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/1/0441/2011/3304/files/62999871748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0517/files/workforce_management_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9381/9541/files/14374234274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3255/9267/files/32546760724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1305/3343/files/query_google_sheets_no_header.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/nobanakaperugovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0033/files/31063372883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2660/4447/files/puropakazufidaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7644/3543/files/tusikutagedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/dax_guide_microsoft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/gofigevifawoxizubuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0649/1797/files/durafuruxu.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
🗂 Part of campaign: ipa-ok.com 5 samples

Related samples 2

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_off00006fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBE 5304 bytes
SHA-256: 09c704f96499044ca4595afd980850104e25d079f2d122f845192a992cf9dd50
font_01_sfnt_off000081e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E7 12736 bytes
SHA-256: b999141abdd38e2d68302f0e39fff04d86a4c723397e35ac4204486b581c41f8

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