Malicious PDF — malware analysis report

Static analysis result for SHA-256 2490e44bd564c544…

MALICIOUS

PDF

40.3 KB Created: 2020-08-22 06:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe4cb827f803c5d87031b7e110fd50bf SHA-1: f4b527df75b846bc0a8d4b41c995b1cf4038cd73 SHA-256: 2490e44bd564c544dc85820d9b5439c57e82a48c9ccc36c311e346492f5d33ce
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on 'cdn.shopify.com'. The document body contains a call-to-action phrase, suggesting a lure to click the embedded malicious link. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.

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.com/pify?keyword=sort+worksheets+in+excel+vba In PDF document text
    • http://files.rebeccahousel.com/uploads/1/3/1/4/131454143/bapibironuvelodoje.pdfIn PDF document text
    • http://kukuju.bradleywilliamsart.net/uploads/1/3/1/4/131408100/xetadigowul.pdfIn PDF document text
    • http://files.midcoastconsult.com/uploads/1/3/1/0/131069763/rewanuxixozo.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/1/0427/7462/6470/files/8086_microprocessor_assembler_directives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6347/4331/files/calendario_2019_con_festivit_italiane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1406/8123/files/60852800022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8114/5243/files/sedikigasifurobesutamaxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/ribujevebaxefuwukabezuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/tofokavapugebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/wufuderiwenizowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/5995/files/45951849625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/83094641626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2610/1925/files/jetibabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/broiler_chicken_farming_business_plan.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA6 5412 bytes
SHA-256: 8bb96c2e90702d9cb68b9abf761bbc1d24b680ef5ac90877ee81cf5a0c38a3e6
font_01_sfnt_off0000711c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711C 10404 bytes
SHA-256: ff6dbae66bdb1617ce7f610405b451ca8a3765cbe74f75d481dac2187f4faf92

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