Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b6b6e7c905d9247…

MALICIOUS

PDF

65.2 KB Created: 2020-08-15 18:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46da77cf7137144904ce0ce23c766876 SHA-1: 1c7af1626880c0d2e3a118187fd1dc24e7d894b4 SHA-256: 5b6b6e7c905d9247b792515d751e03e269a2cc7e18bb41c8c1b7a52f829ebcfc
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, which is flagged as a redirector. The document body, though heavily obfuscated, contains references to the same malicious URL and a benign-looking PDF, suggesting a lure to a link farm. The ML classifier also strongly indicated maliciousness.

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=maps.+me+android+review In PDF document text
    • http://gagelejew.readthemandeat.com/uploads/1/3/2/6/132681670/vodeves.pdfIn PDF document text
    • http://files.ihmconferencecenter.com/uploads/1/3/0/7/130776493/8090370.pdfIn PDF document text
    • http://files.nightriserscon.com/uploads/1/3/2/6/132681308/tizokipagibuna-kepimeroromi-kirasuf-gufaxi.pdfIn PDF document text
    • http://files.msmeiningersclass.com/uploads/1/3/1/1/131164168/kejuverubonatuj_nikasozopez_gozurovedejuli.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/1/0430/7258/5888/files/fovukotas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/86205044857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7816/4384/files/dopimuxuniveduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/dupalofudisuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/analogy_reasoning_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5449/6935/files/34502231613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8217/6920/files/78030327666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3290/1789/files/microbiology_bacteriology_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/brainstorming_template.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2BB 5260 bytes
SHA-256: 2ad44190c2b50b5c9871ff15e5b8f93bcd8e1af2ee744203af133b41cccafa6e
font_01_sfnt_off0000b49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB49B 1700 bytes
SHA-256: 113a67c841af57ed574cc30f094b4ef4e38ec5e5c1b7e8fe725d20ab3659442d
font_02_sfnt_off0000bd19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD19 10772 bytes
SHA-256: 65132a186aa4851366eeaf03afee4146567d087cf7c4bf0d175b072acf49f04a
font_03_sfnt_off0000e226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE226 16148 bytes
SHA-256: 64f21e55c2f29c6f605e8f9fd96e7f7b34f9b4a26fdc717ddead948457370e3b