Malicious PDF — malware analysis report

Static analysis result for SHA-256 7689f3ff2d8e4760…

MALICIOUS

PDF

44.6 KB Created: 2020-08-05 22:55:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fccec158037bd36e547dc746973c0bd5 SHA-1: c274773ac61ca286464a6006374d137928256353 SHA-256: 7689f3ff2d8e4760133313372e045cc11d3badcdff2280d7393eaaa3a074cc55
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.cc/pify?keyword=luther+s+abendsegen+pdf'. This tactic is often used for phishing or to distribute further malware. 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.cc/pify?keyword=luther+s+abendsegen+pdf In PDF document text
    • http://files.naramatamuseum.ca/uploads/1/3/2/6/132681579/4bdb98b546.pdfIn PDF document text
    • http://files.bluebayoudesigns.com/uploads/1/3/0/8/130814205/fesepifufugozun_soterofidire_jisabilufuv_ripekusita.pdfIn PDF document text
    • http://files.jo-ocean.com/uploads/1/3/0/9/130969686/7900856.pdfIn PDF document text
    • http://konifiwu.fayrenaissance.co.uk/uploads/1/3/0/7/130775169/xiwuxuwisufuliruli.pdfIn PDF document text
    • http://files.gregsmolka.com/uploads/1/3/1/1/131164312/jonoke_fusuvaru_wogotepimeg_rugoperijasenu.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/1/0434/2651/3048/files/31575481387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/81184347569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/brute_force_python_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/nimunusoxoxanidokisiduga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/65563824702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/botanical_names_of_vegetables_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/bulefazivefitawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/85007928759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7405/2503/files/mesuzodekuwosarosof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/60468579064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8488/9758/files/99261907477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/113520739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6855/5415/files/nazaxofazulibirejuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9348/1889/files/77656773639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/lehninger_principles_of_biochemistry_solution_manual.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_off00006ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED4 5352 bytes
SHA-256: b789b16219b926a508fac54e24ccf38bdab5858e130770a18a34b0cd91978ac4
font_01_sfnt_off000080fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FC 10936 bytes
SHA-256: 91225bc7c7c1102fdc54934f44608e50a9d538591df7e2766ef7e9d3caa83d3c