Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89065de951f3d9a…

MALICIOUS

PDF

47.9 KB Created: 2020-07-31 11:32:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 22e5db605a9b442f0a424d269dcc8b5d SHA-1: 22b97ed954ab1870e03440c770a50469d9e303db SHA-256: d89065de951f3d9a772b63194ea575730489740d03571839c4cdfeb5636bec4a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also assigned a very high probability of maliciousness. The embedded URLs, particularly the one pointing to 'ttraff.ru', are likely part of a campaign to redirect users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.

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.ru/pify?keyword=circadian+code+pdf In PDF document text
    • http://files.allisonmsullivan.com/uploads/1/3/2/6/132681337/d8465.pdfIn PDF document text
    • http://files.ldceny.net/uploads/1/3/0/7/130775221/januf-fopigilu.pdfIn PDF document text
    • http://files.mirelajoja.com/uploads/1/3/1/4/131453215/d81dcd86a28d249.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/1/0434/4990/9415/files/dazalepamekajuzadivalofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/40595058253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/rokesoxezamesiletewuwegif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6348/files/zubuxinatebediv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/tunoguzawulumutejav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/xukeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/52718633975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/tabedajusopobaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/fimegimurenuvamulanigako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2512/0927/files/pumutav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/97765423219.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_off00007df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF5 4668 bytes
SHA-256: 408a516a9fd604e170d01519b688db22d781891443c9c01bc8151a009926b915
font_01_sfnt_off00008dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DCF 10504 bytes
SHA-256: 3b42bd05b31cdcf0e9fe706867d396e0d9238d79100eb1a2b537de7f74703457

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