Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a30a7c41227f55f…

MALICIOUS

PDF

45.2 KB Created: 2020-09-18 03:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d2dde1e68697ef1e7475a77183624db SHA-1: c67a1a44974d3fc3a78de3a8e662698d90580d33 SHA-256: 5a30a7c41227f55f5c1e56e53db19e3b66b8aafaef9d33054843e990373e6c7a
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to disposable domains and are flagged as a link farm. One critical heuristic indicates a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the URLs found in the heuristics, suggesting an intent to direct users to potentially harmful sites.

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=german+dog+commands+translation In PDF document text
    • http://bidubama.gretchenwilliamsyoga.com/uploads/1/3/2/3/132303382/naxelowusu_gipubabufap.pdfIn PDF document text
    • http://files.tishatinsmanphotography.com/uploads/1/3/1/4/131411474/bidanoximemova.pdfIn PDF document text
    • http://files.syzygydanceproject.org/uploads/1/3/1/3/131398428/lefeguzofegixogo.pdfIn PDF document text
    • http://tatalowej.oceangateyachtbasin.com/uploads/1/3/2/8/132814261/6278004.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://08ef5a49-cc04-4ac8-8dac-67e1232cf526.filesusr.com/ugd/370ea2_74424ec7580547a3aaf24c68b028e595.pdf?index=trueIn PDF document text
    • https://902604b1-cbcf-4854-99d1-81d6b4397573.filesusr.com/ugd/9ea91e_dcb44ffa867f4266b1564098d086fc24.pdf?index=trueIn PDF document text
    • https://2187dcc1-4cf8-40fc-935c-2967aa27e719.filesusr.com/ugd/b28ae2_ae2fbd90523043c3bc0805c0cc23957b.pdf?index=trueIn PDF document text
    • https://cd929a4a-1e79-489b-a5fb-5d3dfbbb3130.filesusr.com/ugd/3ed902_2861e0412e5e4bd9a96adfa47ad40940.pdf?index=trueIn PDF document text
    • https://84d9faf7-9f61-4332-ad2a-ff09f30ca968.filesusr.com/ugd/2c76f4_ce1ec886d4a0495082388808e5fade2d.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/dipato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2733/3019/files/60981290504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/ceresit_cn_69.pdfIn PDF document text
    • https://b01f80b0-f2d1-4eec-a41d-63ef046fdd15.filesusr.com/ugd/af0aa9_339e9404283e4da1a587930d665f937e.pdf?index=trueIn PDF document text
    • https://02ec7a76-3dcf-4be6-86f3-e26336878373.filesusr.com/ugd/5a4aad_772b514e6cb34d9086a77c012fc0c6fd.pdf?index=trueIn PDF document text
    • https://aa40fa03-df43-4734-9ccd-9fd4f96b3a2e.filesusr.com/ugd/8b49c6_ca640d3a530e438f88615304b910f035.pdf?index=trueIn PDF document text
    • https://f8fca7b4-8c55-4bca-943b-9e37396f343d.filesusr.com/ugd/2ca22b_60328108c6a24c58bd9fcbd4e05d1966.pdf?index=trueIn 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_off00007246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7246 5292 bytes
SHA-256: 5f58909b08e0cb48bc76ca2c53566516833f59af34d5e0066d3f95451e66bf65
font_01_sfnt_off0000842c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842C 10476 bytes
SHA-256: d8de5d15738960ac5a0e91d02a0abe02d377c898da1c995aab8c838aa72104d7