Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96e5bb2388f8aab…

MALICIOUS

PDF

36.1 KB Created: 2020-08-01 15:53:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed7712f73fabeeafbd2df2b1155dd899 SHA-1: 540f32a16218c7edab7ce469152799a02871cd1f SHA-256: e96e5bb2388f8aabac1d9161551467229a2a65b3beed98f4f9b563e45b4a8413
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, masquerading as a Microsoft Visual C++ Redistributable download. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=microsoft+visual+c+redistributable In PDF document text
    • http://files.escollins.com/uploads/1/3/0/7/130739251/bekozinixekesasaxake.pdfIn PDF document text
    • http://files.motoworxiow.com/uploads/1/3/0/7/130776267/9373330.pdfIn PDF document text
    • http://files.jamesferris.ca/uploads/1/3/2/6/132681916/wesoxivabedusigi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mudamizoxudaxusuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/gibawari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/pukojuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3323/9457/files/37675105241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/tasizalelerijaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/97090642900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/53874812096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/mebovojaxugokixitagepajek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/dozoxovujezujoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/lolefakexadojuf.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A2 4996 bytes
SHA-256: 35fc9f15d2cbef029ae7d7135197e1092fcbedec85fbd1a04ea0965fdf8d9cd0
font_01_sfnt_off000055b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B5 9264 bytes
SHA-256: 709dc077b5e1bf8d9bfceb4ea942f4ff8ff64583d72b339826860f0a00d041c8
font_02_sfnt_off0000758d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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