Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf2383fd23011e1…

MALICIOUS

PDF

47.0 KB Created: 2020-07-31 06:31:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da1eec2e37274a084edbae4dd68438d8 SHA-1: 740daeacfa1f3b59e5c6f20675f4b445221b0d49 SHA-256: ccf2383fd23011e16c7d64cf88a9d8507a917c6097b95724de81af2c6f19080d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains numerous links to external resources, many hosted on Shopify, forming a link farm. One critical heuristic identified a redirector link to 'ttraff.ru', suggesting a malicious redirection attempt. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the document's structure and embedded links indicate a lure for users to visit potentially harmful websites.

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.ru/pify?keyword=bangla+golper+boi+free+download+pdf In PDF document text
    • http://files.myxistore.com/uploads/1/3/1/1/131163736/5157670.pdfIn PDF document text
    • http://files.mdiforgrowth.org/uploads/1/3/1/4/131408620/4ad494.pdfIn PDF document text
    • http://files.gandecollective.com/uploads/1/3/1/3/131384778/ferimonofokobu.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/1/0436/3393/4496/files/74257340668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/totaron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6620/4066/files/tobavemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8458/5883/files/91458454836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7881/9735/files/fajudinoviretivilikotoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/38377906909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6955/5356/files/42795956405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/vogifazisofejosina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/golibuwevoxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9540/9311/files/33486373474.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD0 5020 bytes
SHA-256: 34961ca942a1548cbd4ac0fbb72af4fc001940ec9f9ccba409e3b09f21226ef2
font_01_sfnt_off00006eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EED 9360 bytes
SHA-256: 6de204d2030b7f5eb23ac47d5409dd8b6872bc7616296ae556de6db3627589c2
font_02_sfnt_off00008bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDB 10184 bytes
SHA-256: 8607c2c3b04c977f085b05c014a54f27f71d4238fd6151b9dad455d35d747935

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