Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc75d49fdbee417c…

MALICIOUS

PDF

32.3 KB Created: 2020-09-20 04:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 846c4beba1be8a401bbcf5a44648480b SHA-1: 40da68963cdf4dbbfd74b4f169eb06bb8bcd1158 SHA-256: dc75d49fdbee417cc11dd562a0bfd1637f312b6a7573b64e50285e5c516126bc
184 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. One of these links, 'https://ttraff.link/wix?keyword=to+build+a+fire+characters+brainly', points to a known malicious redirector. The document body is heavily obfuscated and contains what appears to be a truncated URL, further suggesting a malicious intent to redirect users to harmful content.

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=to+build+a+fire+characters+brainly In PDF document text
    • http://files.cameraygal.com/uploads/1/3/2/6/132681409/guwapot.pdfIn PDF document text
    • http://mezumu.kinklinksgsy.com/uploads/1/3/1/4/131452976/c60604d156f2e.pdfIn PDF document text
    • http://jipob.unnatinarang.com/uploads/1/3/1/4/131453934/262588ff.pdfIn PDF document text
    • http://wuwif.swampfest.ca/uploads/1/3/2/8/132814930/84fef61070b13d.pdfIn PDF document text
    • http://denomuk.pro-activemuscletherapy.com/uploads/1/3/1/4/131453915/jewekumituw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9592dc58-a99c-42be-b4cd-d43fd6a2a9fd.filesusr.com/ugd/7836c9_082832227b724078b1c92c6ef1826c2a.pdf?index=trueIn PDF document text
    • https://3f7db3a0-7f84-4bc6-815f-08d4d086e04e.filesusr.com/ugd/a76634_d8c2c315b02f4dac9f84ac804863e2a9.pdf?index=trueIn PDF document text
    • https://e5461bb4-3011-44d1-9a78-032335317c5f.filesusr.com/ugd/e54fc7_64f03f2aed4b4d4cb819c6cae3543ead.pdf?index=trueIn PDF document text
    • https://2a671b59-83d6-4b7a-90ad-2e76f2d7982a.filesusr.com/ugd/8508de_31f41eff265a448e9ea345e0b977a37f.pdf?index=trueIn PDF document text
    • https://46c7507c-362c-4864-868b-26af75398cc5.filesusr.com/ugd/7ef0dc_9134bc39c9644b589e215316b091fba1.pdf?index=trueIn PDF document text
    • https://530eed12-e39f-4861-b9bd-3399c28d216c.filesusr.com/ugd/162fe6_110e5166950249d9b35a413da9a4589c.pdf?index=trueIn PDF document text
    • https://1b1cbc41-2031-44a8-b5b3-3c4dc3c76530.filesusr.com/ugd/58a813_ab2e0eecc83d4d339e622c20ec3d3e8d.pdf?index=trueIn PDF document text
    • https://8bb59193-402b-49af-9a9b-be1f6db3f4fb.filesusr.com/ugd/c1de29_6de26b560fd2418a95b3c30fd9a80fb2.pdf?index=trueIn PDF document text
    • https://8df3c3a7-0517-4047-8ca1-ad69647c7b1d.filesusr.com/ugd/4dd980_d04f0242340c44128bbd22553f058d45.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

Related samples 5

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_off0000458c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x458C 5300 bytes
SHA-256: 09cce0ab6be9bd2d479bb57edff97d5a5bc176074bf67ec1e3f13e8205d8c21d
font_01_sfnt_off00005793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5793 8508 bytes
SHA-256: 91ad5ce0e5e7de3e9a3ea670ca77857772c837242c431ad3a1e5333fcf31259b

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