Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d7d1809bd0c228…

MALICIOUS

PDF

60.6 KB Created: 2020-08-04 19:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf86a57a8d0a59720d70b2fdaec8a868 SHA-1: 7d936ba81ef1b6b2c02ed3a22d80fc501f6236ac SHA-256: e6d7d1809bd0c228c4396e1de0f25c74822aa2b652c828c5105abce7877115d3
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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.cc/pify?keyword=culture+media+used+in+microbiology+pdf In PDF document text
    • http://files.jhstoys.com/uploads/1/3/0/7/130775402/lusoseriti.pdfIn PDF document text
    • http://files.cwowi.eu/uploads/1/3/1/4/131483108/gisufojeboru.pdfIn PDF document text
    • http://files.eliteladiesfashion.co.uk/uploads/1/3/2/6/132682070/dilonodemale.pdfIn PDF document text
    • http://files.oldpueblosoapery.com/uploads/1/3/1/4/131405977/palib.pdfIn PDF document text
    • http://files.mtvernonpentecostal.com/uploads/1/3/0/9/130969052/1911917.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/1/0434/4492/8674/files/bopode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2484/0861/files/thomas_and_finney_calculus_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2581582401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9115/6380/files/84956834109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/clasificacion_de_antibioticos_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9659/5870/files/57320942793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5372/6358/files/80018159603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/28528714670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/78745836649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/dukaposarazumuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1751/7725/files/7244529317.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
🗂 Part of campaign: eliteladiesfashion.co.uk 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0FD 5620 bytes
SHA-256: ce6f30ba00979e8a6b74fc6dedc81edcffe79b6a321e0f72090acb50429dc975
font_01_sfnt_off0000b400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB400 10208 bytes
SHA-256: a54a089ac55844f18eca0cecb36a2918a5363b5235377b6bbaa2269c039e949b
font_02_sfnt_off0000d6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c