Malicious PDF — malware analysis report

Static analysis result for SHA-256 089a17bcdf4b4a9a…

MALICIOUS

PDF

44.7 KB Created: 2020-08-16 17:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a80f0e4243007ff430e20391a445459 SHA-1: 3bca467b07877316b7c8af7975bf23bc7f01e79b SHA-256: 089a17bcdf4b4a9ac939446cbb4dc26b8876e52e1b6e9bd47f5acb9779f79658
214 Risk Score

Malware Insights

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

The PDF contains a malformed exploit stream and multiple links pointing to a redirector infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, indicating an attempt to trick users into downloading further content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=family+tree+templates+with+pictures In PDF document text
    • http://tuluzoluv.cinquegranelli.com/uploads/1/3/1/4/131438667/ffec55e4d49.pdfIn PDF document text
    • http://files.laurenmareephotography.com/uploads/1/3/2/7/132712129/vixosurigitobub-desomibanupakof-kolubu-bidogirelozip.pdfIn PDF document text
    • http://zoxorek.writteninwood.com/uploads/1/3/2/6/132681352/f17ff6.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/1/0439/7016/6942/files/85178171730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1152/1187/files/what_is_a._aae_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32808714247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/2120903490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/cutting_edge_elementary_third_edition_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/pezajumukupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1416/7450/files/kigutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/90843315794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/nolowefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/tupuxopaxamasinex.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_off00007138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7138 5324 bytes
SHA-256: 695bd06b46e7ae4b263cbbe01de12e97f9e47d99598cc5c5cc3f1522a53592b9
font_01_sfnt_off0000833f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833F 10200 bytes
SHA-256: 302457fd95be9c67caabc14b730aad53de048d88b89243fc4bcef4eac3aca22d