Malicious PDF — malware analysis report

Static analysis result for SHA-256 85835a4421482cc1…

MALICIOUS

PDF

41.0 KB Created: 2020-08-10 11:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22165181c9eeaa5f5584368488a82b11 SHA-1: b967a0e5e8b7f3342d7cb70d6198c4c59ed22b31 SHA-256: 85835a4421482cc1afe8027be8fdce274e4b1f237418a28a79c89ef4d00a03f6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. This suggests a phishing or scam attempt, likely using the guise of providing a document related to 'media planning and strategy in advertising' to entice clicks. The presence of a link farm and redirector indicates an attempt to drive traffic to malicious infrastructure, potentially for further exploitation or credential harvesting.

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=media+planning+and+strategy+in+advertising+pdf In PDF document text
    • http://files.innotrope.com/uploads/1/3/1/3/131380651/148853822.pdfIn PDF document text
    • http://files.leannawoodleyphotography.com/uploads/1/3/2/6/132696414/dutobululenopimis.pdfIn PDF document text
    • http://files.literacyshedblog.com/uploads/1/3/0/7/130776041/344808.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/1/0432/7083/2283/files/fixelasigepadew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2792/2076/files/83752175563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/ad_d_2nd_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0244/5475/files/bogetuwig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2217/8710/files/button_css_media_queries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/33854419455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/xigivopuvudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/pokedonig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/zovemoreb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/fsx_learning_center.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/92386584312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1354/4863/files/ocean_of_alternative.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_off0000614f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614F 5376 bytes
SHA-256: daf59378a221f3a25b01239f426e751ea9dc2ffe5d4be92d8d8fd252ebdbb393
font_01_sfnt_off000073c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C2 10320 bytes
SHA-256: 154c8dba44afd3e2c5852fd6bfa2881a7257ad64dfd7796b93f73f82ab58dc3f

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