Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe411554c7effa3d…

MALICIOUS

PDF

46.1 KB Created: 2020-08-19 14:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b648193e85ebf0f4d03111da450b793f SHA-1: 311e26ec944dc7fb89b96bb686c87d6d3bba89c6 SHA-256: fe411554c7effa3de32ef7af98e2db7d3c36a08dc825ddd34d95eb6fea12751d
214 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, disguised with a lure related to 'bet365 new version free'. The document body also contains this lure and the malicious URL, indicating an attempt to trick the user into clicking through to a potentially harmful site. The presence of numerous links to Shopify-hosted PDFs suggests a link farm for SEO manipulation or to obscure the final malicious destination.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=bet365+new+version+free In PDF document text
    • http://files.butterflybirths.com/uploads/1/3/0/7/130739081/4717953.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/1/0433/6307/4213/files/jilanuzetatejokeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/zukoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0662/3903/files/gajakunenip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4277/files/sistema_politico_socialista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4249/1816/files/real_time_labor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5657/0266/files/meruxiduseku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/54620816225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/aashiqui_2_mashup_song_bestwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/west_bengal_hooghly_weather_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8685957786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/zigalukezigumut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/6093/9163/files/kamika.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 2

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_off0000767e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767E 5164 bytes
SHA-256: 719f611d0d5d813e550fe9e8dd5ad4ebe3c5182b958f9701dfe89175e61bc399
font_01_sfnt_off00008836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8836 10444 bytes
SHA-256: 8a53cc521a1f5fe500e9bd63c4176930c17f43cc72884ff88d2820ab311c611a

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