Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b9a76e2081297df…

MALICIOUS

PDF

47.7 KB Created: 2020-09-16 19:25:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 026011c72b9e3c7597043727339afe45 SHA-1: 7fc48896f42f6b979fe68ac44dae34c9ddd6404e SHA-256: 6b9a76e2081297df74d341340be0beac3c247674e79019ac1678ebd7ccde2c7e
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to disposable hosting and some redirect to known malicious infrastructure. The ML classifier also flagged this PDF with high confidence. The document body contains obfuscated text and URLs, suggesting an attempt to disguise its malicious intent. The primary goal appears to be directing users to malicious sites, likely for further exploitation or phishing.

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/pify?keyword=7%252F4+as+a+decimal In PDF document text
    • http://files.themodernweld.com/uploads/1/3/1/4/131453902/bipomuk-temulijosa-vidorurasa-mozuk.pdfIn PDF document text
    • http://files.tuscanoaks.org/uploads/1/3/1/3/131398541/sufiwate.pdfIn PDF document text
    • http://juvolis.bunnyrancher.com/uploads/1/3/2/7/132710567/kazakuxerokada.pdfIn PDF document text
    • http://degogofo.dabesthawaii.com/uploads/1/3/1/4/131438580/acfc00ade31.pdfIn PDF document text
    • http://files.milliontreeinc.com/uploads/1/3/1/4/131437123/zegido-tobumolagiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://da427fc8-4962-4148-a6a9-6f3b3bc7df62.filesusr.com/ugd/3ddeef_eb6e0c6409ac4a07aa15a9edaf3bfc08.pdf?index=trueIn PDF document text
    • https://a35c3095-4a52-4e9e-b6c6-32c517e3c7d2.filesusr.com/ugd/0cd3a8_cf6e8fd7080d42ada6a958f584c6f597.pdf?index=trueIn PDF document text
    • https://d94d29f9-4843-4286-82ac-f14ee017ebc8.filesusr.com/ugd/a13bc2_91864a5f6b8945b98e4493a4b63391d3.pdf?index=trueIn PDF document text
    • https://24a47f48-3a82-43cd-95ea-e1af283c25c3.filesusr.com/ugd/70e5f7_490d5fb514854499b6e08ef832546fd1.pdf?index=trueIn PDF document text
    • https://b93aa6cc-4c7f-4817-b466-2ee927b19e9a.filesusr.com/ugd/3826db_7e2101f8cfb5454791131afa3e817558.pdf?index=trueIn PDF document text
    • https://132a8eaf-a8f9-406b-86ec-4f13833a49ec.filesusr.com/ugd/4c7633_91d42ed6edbd457e8d130e4e24d014d7.pdf?index=trueIn PDF document text
    • https://877cfc73-2659-40c3-8e9a-bb4b57240f60.filesusr.com/ugd/610d21_50e7b275308344ea82075e6e49b5d1cc.pdf?index=trueIn PDF document text
    • https://c5da6b1c-4da3-4830-8ccf-ddea9b0744bf.filesusr.com/ugd/1cc777_bdde1c562b444cdfb767d6e952c22cce.pdf?index=trueIn PDF document text
    • https://a8aff6b0-f62a-4ec5-a1ab-ea66a72cfbfe.filesusr.com/ugd/d7d6cd_24e1b9d084fc4b9896690946b99f220b.pdf?index=trueIn PDF document text
    • https://f64aef82-f009-453a-b9a1-5c97f0234f44.filesusr.com/ugd/8acad3_b7db4e10e11641088fb3977421dd34bb.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1687/0293/files/presentation_in_english_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/blank_iwcf_kill_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/consciousness_definition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6674 4588 bytes
SHA-256: c5ac1805d9d27bc270330f0c244e2fde121ef416c6d3dfb392b8694f768598db
font_01_sfnt_off0000760d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760D 14312 bytes
SHA-256: bc15626d7a8bbb977688587874cbada8c441047b871aabbfb043757117c3a7f7
font_02_sfnt_off0000a378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA378 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e