Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5c7ace4b9b9a13…

MALICIOUS

PDF

38.1 KB Created: 2020-08-27 21:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cda948f044432ba9fcc544535b57ca52 SHA-1: 78f087dbfe7bc1fab0d92d3bf84d614d51933035 SHA-256: 6e5c7ace4b9b9a13d13d939e145a7ecb0e558513e81f7cfb510599fd457207dd
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, masquerading as free flyer templates. The ML classifier strongly indicated maliciousness, and the embedded URLs point to a redirector service. The document body itself contains the primary lure URL, suggesting an attempt to trick users into downloading further content.

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=beauty+salon+flyers+templates+free In PDF document text
    • http://gusatub.sttammanywoodworkersguild.com/uploads/1/3/2/8/132816036/47e21.pdfIn PDF document text
    • http://files.inspiringeducation.net/uploads/1/3/0/8/130874162/vovujudob_xesema_riwomoraw_lajesix.pdfIn PDF document text
    • http://jorosef.anti-agingbyrjxjelly.com/uploads/1/3/2/3/132303354/8686563.pdfIn PDF document text
    • http://files.khangnguyenart.com/uploads/1/3/0/8/130813413/nileniwukebifegopodo.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/1/0433/5684/8282/files/96848157587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/xuxipaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0821/1619/files/riwakifetowusenevegaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8243/2160/files/gamecube_games_emulator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/5418/5878/files/biharwap._in_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/1756146886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0939/files/best_app_for_annotation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/69201731837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/kabbalah_magic_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0569/7438/files/73334815982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2362/9477/files/pideriluporixidiwawove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1842/6267/files/suxabake.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_off000056c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C1 5200 bytes
SHA-256: 12ee8320f75a5f77ba4f21d834d4f858490f5071438313f7a0c0559580898fa0
font_01_sfnt_off00006862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6862 10148 bytes
SHA-256: 932c6073a36dfd016aa9ec578682cc04a54fcd61ab48b3f8cd603a2487b4d63c