Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eb97d77e5b98d21…

MALICIOUS

PDF

44.2 KB Created: 2020-08-11 16:24:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c3283c5e119a74ddf0a1a8524571c28 SHA-1: d1ba2d3911ef04aebe9d7a937aab7873f6327bbd SHA-256: 5eb97d77e5b98d216b07fd5b2a3f6d211cc2b2fa21b2ae5ec1cf8d3fbdd2a4ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, also contains the same redirector URL and appears to be a lure for free downloads, likely leading to phishing or malware. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=blast+furnace+book+pdf In PDF document text
    • http://files.portellowinecafe.com/uploads/1/3/1/4/131408250/zitog-xotoj-tivatiguxivev.pdfIn PDF document text
    • http://dovape.figjamcottage.com/uploads/1/3/0/7/130775607/malaniximur.pdfIn PDF document text
    • http://files.bishopgumbleton.com/uploads/1/3/1/3/131379371/tokasinipegog.pdfIn PDF document text
    • http://files.baliscubacourse.com/uploads/1/3/0/7/130775398/7ca56ff22639e.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/1/0437/0874/3835/files/murigomosokoxobajeledin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/bigamabulevorumol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9689/0785/files/howl_s_moving_castle_kissanime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/51797827835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5907/6510/files/wapobejetivepumovez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8854/files/html_to_angular_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9352/2587/files/34586393005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/dibavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/dojajuluzat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9200/1433/files/xevebezakataziwaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/koraresuwolalaxodikur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/cadillac_xts_2020_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/98135834627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0C 5404 bytes
SHA-256: ea08942bc4814fd2a5323c9993c839bb494a419cd3b38fc0f44057fdfaaa0093
font_01_sfnt_off00007f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F69 10752 bytes
SHA-256: 0edafe97c487ac70b96065c79408e47b347740aeaa30bd3edf43a21762beb0fe