Malicious PDF — malware analysis report

Static analysis result for SHA-256 a64353d6ee8b2b68…

MALICIOUS

PDF

37.8 KB Created: 2020-07-31 19:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4535c3be563f4c7247ae727cdab08905 SHA-1: 224f6dbc8f8b370f1bdccd02f51a65b4b65236d2 SHA-256: a64353d6ee8b2b68bf87e659ae199f2f87fc8371afc1c004e55cc709d3eeebcd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). The document body text, though heavily obfuscated, contains the URL that is also present in the heuristics, suggesting a lure to download further content. The primary malicious IOC is the redirector URL, which is likely used to obscure the final destination of the payload.

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=autodesk+maya+2017+basics+guide+pdf In PDF document text
    • http://files.columbiadentcenter.com/uploads/1/3/0/9/130969910/jubegonakajij-desagomabof-sateno-pikilolot.pdfIn PDF document text
    • http://files.waynesmeats.com/uploads/1/3/2/3/132302894/fojim-foxikubefegoj-guzimamo-xagekabodoripu.pdfIn PDF document text
    • http://files.destinationsananselmo.com/uploads/1/3/0/9/130969993/1460790.pdfIn PDF document text
    • http://files.prodigalsonsinc.org/uploads/1/3/0/7/130740536/zonavexab.pdfIn PDF document text
    • http://files.religiousdoodles.com/uploads/1/3/1/3/131379578/9d7517d15303.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/1/0441/3590/7480/files/9450195114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/88040842360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/pupavapuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/3787353169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5208/9000/files/galopulakewigonikaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/nafokeloxazositaveju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/muzuzezebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/90507812295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/wavanex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/92030461359.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_off00005445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5445 6048 bytes
SHA-256: 497a45b15844bfcfb1ef01ef3f73a810243b14b4085f728bc8cc39476a676042
font_01_sfnt_off000068e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E7 9848 bytes
SHA-256: da19a46d5f51c06d785252336a00d39f631af135fac5908a5acc1db88760e4aa