Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef7ae694fa4b5c0e…

MALICIOUS

PDF

71.4 KB Created: 2020-08-14 01:30:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78a7fd76d181a232985e0a981d4f239f SHA-1: c4ee774ea68cfdd9a15007d675074b0bca3c6968 SHA-256: ef7ae694fa4b5c0ef2b3bba3cb602950249fb3606f292eb61f00abf36e070b44
194 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, presenting language related to lotteries or prizes and large sums of money. It includes a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is designed to lead users to further malicious content. The document also features a PDF link farm hosted on Shopify, with one of the primary links being 'wegigekoluzeridi.pdf'.

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/wb?keyword=linksys%20velop%20manual%20configuration In PDF document text
    • http://files.marryandtuxbridal.com/uploads/1/3/1/4/131452878/d68405e88.pdfIn PDF document text
    • http://files.redsledornaments.com/uploads/1/3/0/7/130775978/779296.pdfIn PDF document text
    • http://files.ironmenfootball.com/uploads/1/3/0/8/130813364/3969273.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/1/0435/3648/2458/files/wegigekoluzeridi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/lijedot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9365/files/gezodefaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8689/9350/files/hiv_aids_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3336/files/tekkit_light_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9198/files/velaxofimokokosuwuwukap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6321/2192/files/wevosovin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/49004137086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/74540217888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/wisejapuvatilafetutinifun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4913/9880/files/xopaguboseno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/88993499357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/wijavazozaropomufa.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 4

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_off0000d82e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82E 5504 bytes
SHA-256: 522c2cb93c70ceca70a26f83dc8ffe3aaef4c00a8d661e9b1dc12b3f85ac274a
font_01_sfnt_off0000eae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE1 10992 bytes
SHA-256: ddff0fb65e8649084300d08110c5f69b94c633e051f480dfba6a7e5126799f3d

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