Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee8124d16e69581f…

MALICIOUS

PDF

47.0 KB Created: 2020-08-12 19:04:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6c74172e3f115ba65a0b94602eceb75 SHA-1: 88e5cff2218fd18ff647d72eaf6563bcd77af962 SHA-256: ee8124d16e69581f207003d802ee2150f7538c5c16963d0253b0d8f34389af85
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely intended to obscure the final malicious destination. The document body text and heuristics suggest a social engineering lure to trick users into downloading a file.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=download+pdf+file+from+url+online In PDF document text
    • http://files.americasharvestcbd.com/uploads/1/3/1/3/131383255/0ac355f6f6c9.pdfIn PDF document text
    • http://lomemuk.kippbiogeochemistry.com/uploads/1/3/2/7/132740873/679c245.pdfIn PDF document text
    • http://files.springmorefarm.com/uploads/1/3/0/7/130775138/7480573.pdfIn PDF document text
    • http://jotozera.allanimalclinichattiesburg.com/uploads/1/3/1/6/131606457/vikowuv.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/1/0428/4920/6439/files/81121905524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8641/9870/files/asma_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/56208046298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/lasuzuxogiket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/manual_taller_suzuki_bandit_400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0202/files/municipios_de_puertorico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/mimamofoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/94414508292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vasopamomakazemujavinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3491/0618/files/70016456056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/puxozexowodasubaleraribe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5466/8705/files/94540780288.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D3 5100 bytes
SHA-256: 685349f9818c288d3b25e33b78c4f594f753898f1b62b6243d162c197d4ca774
font_01_sfnt_off0000762d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x762D 10360 bytes
SHA-256: 7a370716daf303aa5b46dd626e7eea6729af5787ae83ca86fc8a858aafc28367
font_02_sfnt_off000099db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99DB 16092 bytes
SHA-256: c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e