Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e20817a76f7f28…

MALICIOUS

PDF

42.3 KB Created: 2020-09-18 14:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cec849ff75d3b2680168c031d7a45287 SHA-1: 241d8e1280aff4b24182dd69ad146f5b449dd089 SHA-256: 10e20817a76f7f287c58b26e9956ca4394eb2bbb7e757d257076018514a76a4e
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector link farm. One of the primary links, 'https://ttraff.link/wix?keyword=net+force+worksheet+pdf', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an intent to redirect users to potentially harmful content. No scripts were extracted, but the link farm nature points towards a phishing or malware distribution attempt.

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.link/wix?keyword=net+force+worksheet+pdf In PDF document text
    • http://rerukize.tricotting.com/uploads/1/3/1/0/131070374/gajutiropop_tibepebitamofa_nexam_kakositosizivuw.pdfIn PDF document text
    • http://xuraxili.johntroypainter.com/uploads/1/3/0/9/130969746/ffbfef6a24e51b4.pdfIn PDF document text
    • http://jitosen.veteranchildren.com/uploads/1/3/0/7/130775209/daxikofa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://54c18b9d-9af4-4326-a928-e9a1e9cf4742.filesusr.com/ugd/6f58fb_2263c1f93d9b4623b5d370d47a543d92.pdf?index=trueIn PDF document text
    • https://bd2dd126-bc31-4fca-b7d2-61f13150b995.filesusr.com/ugd/1e533a_f2c69c358eff49bcafa34d7173ee4b17.pdf?index=trueIn PDF document text
    • https://9db926e5-20cd-4f7c-b9e2-2aa0b675fe5d.filesusr.com/ugd/fef373_e4a682d576fb4216a2d029f6b2945faf.pdf?index=trueIn PDF document text
    • https://e8511737-4e41-47eb-9ce8-e811f3d16e0f.filesusr.com/ugd/ee9d3f_02439493f1dd441c972c83c694c2ae67.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/33156379233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/tipinunegenuno.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B9 5124 bytes
SHA-256: cb59df30721fa73d6c98b02cafe3bc6bd64a09d3ac2c90f026771da43f836aae
font_01_sfnt_off00007849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7849 10588 bytes
SHA-256: 38fed12a6bae55050eb57cb81507a823244e78b200a0b20460f1e0a5ef280a1c