Malicious PDF — malware analysis report

Static analysis result for SHA-256 df305efe4a9b01f8…

MALICIOUS

PDF

41.6 KB Created: 2020-09-17 21:12:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 540be5dd84b0baa9b3c357f136942041 SHA-1: 826bf6b658ca076ae99e6321f6e9903dca11d90e SHA-256: df305efe4a9b01f850043008f59ea86637751d10b1435496ac357028788ac7f9
184 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of embedded links, indicating a link farm. The document body contains text related to 'tracking' and the primary malicious URL is associated with a redirector. This suggests the document's purpose is to lure users into clicking malicious links, likely for phishing or malware delivery.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.club/pify?keyword=rf-smart+packed+box+tracking In PDF document text
    • http://favezonev.durbanafrica.co.za/uploads/1/3/1/8/131871991/9302233.pdfIn PDF document text
    • http://files.rogersilvers.com/uploads/1/3/1/4/131438641/7200722.pdfIn PDF document text
    • http://files.westportom.com/uploads/1/3/1/3/131383323/magusetorun.pdfIn PDF document text
    • http://files.opheliafinke.net/uploads/1/3/0/7/130776131/zeneroworaba.pdfIn PDF document text
    • http://files.iansturgess.co.uk/uploads/1/3/1/4/131412558/wezetezumeve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1dd0fc01-e486-4304-9b28-f4805b267b62.filesusr.com/ugd/f9fac6_0834498173784818ac7504bea06b3f3b.pdf?index=trueIn PDF document text
    • https://9c26b4a6-95f2-4f0a-baa0-138be3b03637.filesusr.com/ugd/e42ee3_e7fbed6117a044c883993773d1d12659.pdf?index=trueIn PDF document text
    • https://dcb0adeb-89da-42ca-95be-3ddf41602437.filesusr.com/ugd/115d6e_04eb28ecf31a4d7fba294827d99cbc64.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2081/2441/files/nivinonijaditikijes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3543/3882/files/74601946691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/35403014577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5467/6645/files/27814199820.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 8

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_off0000630b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 5752 bytes
SHA-256: 8578c4914b723722624eabe933dc5cdd4e7f47ef75e6e18f2bfd502a50d2eddd
font_01_sfnt_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 10432 bytes
SHA-256: 1aacd49cb6db0540988275bdbdedfe69b7b4614f58ca00b37b92080e6b87e85f

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