Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1c3e22f492d9f1…

MALICIOUS

PDF

40.6 KB Created: 2020-09-17 03:22:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e8473831596f5bf1e67f9018a494674 SHA-1: 11f8bc2e4e68f03ab9a93c2c3cb6d5fbfdb3848d SHA-256: 5c1c3e22f492d9f15a64b48205010f851dbb72c18ea550e18d6d250307e6679f
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'nicene creed worksheet pdf'. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=nicene+creed+worksheet+pdf In PDF document text
    • http://saxeput.weealec.com/uploads/1/3/2/8/132816202/5029190.pdfIn PDF document text
    • http://zaxarumip.nutriandmore.com/uploads/1/3/1/8/131856543/5159225.pdfIn PDF document text
    • http://files.raveneyeimagery.com/uploads/1/3/0/7/130740591/suluropekawosixi.pdfIn PDF document text
    • http://files.avalonweb.com/uploads/1/3/0/7/130739330/8350599.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0a505b30-973c-4469-84d8-6078852aba20.filesusr.com/ugd/9bd82e_b34ec1e90acf4493ba4e045d2bdb9ec1.pdf?index=trueIn PDF document text
    • https://821d27c8-35e4-4aec-8388-56c929324504.filesusr.com/ugd/90d19e_6049866f21b34fa5be4457c6a1ab04b1.pdf?index=trueIn PDF document text
    • https://c9a8240d-c017-40b6-86c7-fd6b60b71f4c.filesusr.com/ugd/e2c223_525b2d392bd449918e261948e4d5d9ff.pdf?index=trueIn PDF document text
    • https://1a9b85a1-409b-4428-9816-43cb6039a012.filesusr.com/ugd/18ee90_863a0acab3f7425594299eb5bceb03e9.pdf?index=trueIn PDF document text
    • https://c3afd91c-d9a5-4912-ab82-12c9b71cb680.filesusr.com/ugd/7c41c1_4dd64b96c92c4192b506f88d58526a3c.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0157/5586/files/81335941963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/70656851110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7994/9718/files/23574890116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8033/3989/files/vinuja.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 5124 bytes
SHA-256: 871373b0fd508987c84139aae70d2eb2bff4fe8418622840938bf6a61bec2d60
font_01_sfnt_off0000735f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735F 10104 bytes
SHA-256: 1eb5aaad504abfce099c982d607eeb8da37ac7544a97604a0edc7c2bd4ed9940

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