Malicious PDF — malware analysis report

Static analysis result for SHA-256 310d89ebfe6ddf4a…

MALICIOUS

PDF

41.0 KB Created: 2020-09-09 17:58:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5c53ba0b426bdfd6224ed178626c268 SHA-1: 8bffa61e26fbd06c91adc809a0676e54bf1b8d30 SHA-256: 310d89ebfe6ddf4a9bfb4b41f8d3300ca776d79c80351f3e0c43e302ddcb8cf2
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.club/wix?keyword=2015+yearly+calendar+template+excel'. This suggests the document is designed to lure users to malicious sites under the guise of providing calendar templates. No scripts were extracted from this sample.

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/wix?keyword=2015+yearly+calendar+template+excel In PDF document text
    • http://files.heralindsaybird.com/uploads/1/3/0/9/130969818/6162516.pdfIn PDF document text
    • http://dubovuvez.frappzillastudio.net/uploads/1/3/1/3/131384611/daxuj.pdfIn PDF document text
    • http://xojopa.claytonbrowneortho.com/uploads/1/3/1/3/131380600/08eb000e.pdfIn PDF document text
    • http://jisixes.hometowncivitanclub.org/uploads/1/3/1/6/131637814/nudexinefoled.pdfIn PDF document text
    • http://xigorej.alacimsocialmediamarketing.com/uploads/1/3/0/8/130873851/notobopifagid_tewululutowik_sugefotebife.pdfIn PDF document text
    • http://sosupuda.gastonsportsview.com/uploads/1/3/2/7/132712116/9228797.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/1/0435/0961/2712/files/85928715844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7103/5809/files/20976915338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6923/3565/files/present_simple_or_present_continuous_worksheets.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/62e2c1_723f6af5c8604c4ca9f17e626ea8b9d1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/55f640_9d1ff34b737748799c8af95f1be89e68.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a467d2_222208b7fc144a8084302f961e1a1189.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/77eba6_af800910b6a8456689e1fdfe783dd8fd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/46429b_5678d7cdecf047ee8a8a86667af7d807.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 2

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_off000061cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CF 5568 bytes
SHA-256: e6f3659ae223e9da35aa2d37bd03af425f7e48e63d4893121dc74bff4d10d08b
font_01_sfnt_off000074b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B6 9948 bytes
SHA-256: a9cc78e48038a7683b931789bebccd06809c20d513208c55a3d830b3b16b8b50

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