Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd1c90b55239b63…

MALICIOUS

PDF

34.5 KB Created: 2020-08-12 15:35:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9058ae1d1ef393d9fbc21b3c7c04d540 SHA-1: acb5fa88d6a28e2ed19ccbcdec5736db94815c54 SHA-256: 2cd1c90b55239b63c1823634aad6e170aaa7a6e2e0bdf267004ac12ecbb58da1
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/wb?keyword=logiciel%20gratuit%20conversion%20pdf%20vers%20word', which is flagged as malicious. Additionally, it features a link farm of 13 PDF links hosted on Shopify, with one pointing to 'https://cdn.shopify.com/s/files/1/0431/6738/3712/files/37519125954.pdf'. The presence of a visual download button lure further supports a social engineering attack. The document body, though heavily obfuscated, contains the primary malicious URL.

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/wb?keyword=logiciel%20gratuit%20conversion%20pdf%20vers%20word In PDF document text
    • http://files.creeksidepto.com/uploads/1/3/1/3/131380292/bddd4a0a7731ad.pdfIn PDF document text
    • http://files.esaetapi.org/uploads/1/3/1/4/131453109/wikovuxanujezo-nerufasinifazew-gaxiwaw-kajawevafuzax.pdfIn PDF document text
    • http://files.v-list.org/uploads/1/3/2/8/132815220/4946318.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/1/0431/6738/3712/files/37519125954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/visaboxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/rososotijakipipaxotegorux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/historia_del_derecho_jorge_basadre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99781003244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/10206005592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/apology_of_socrates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3936/6047/files/2541805471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6761/2067/files/rerukifexafit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9764/0360/files/the_legend_of_zelda_ocarina_of_time_strategy_guide.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 7

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_off00004831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4831 5416 bytes
SHA-256: 5c9b29f262dd37fc1579628c95f6d346bc6407a1c4740f7eae20e5955b4c4c64
font_01_sfnt_off00005ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC3 10064 bytes
SHA-256: a0332767978bbe8b1fc9abc2a5bdfbeb41d7c0dd04be4bcc323d7af011db55e5

Open this report in the interactive analyzer, or submit your own file for analysis.