Malicious PDF — malware analysis report

Static analysis result for SHA-256 678f5582c94b3f75…

MALICIOUS

PDF

51.7 KB Created: 2020-09-17 14:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db196461eb8598ed370a411b6b3960e9 SHA-1: eeeca96ce01812e3312cee23f077c81139fe38e6 SHA-256: 678f5582c94b3f75faa0921e80af18514a3128df0606026cf76593eb824eb898
184 Risk Score

Malware Insights

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

The PDF contains embedded URLs that point to a redirector service, which is a common tactic for phishing or distributing further malware. The heuristic firings indicate the PDF is a link farm designed to redirect users to malicious infrastructure. Although no scripts were extracted, the presence of malicious URLs and the PDF's structure strongly suggest an 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.club/wix?keyword=generac+gp3250+user+manual In PDF document text
    • http://files.sofiasnewyork.com/uploads/1/3/1/8/131856158/lixezixubirelalor.pdfIn PDF document text
    • http://files.drjohnnylee.com/uploads/1/3/1/3/131382955/lorevijejozez_nonolewi_fibevejimuve_rutesikorexoto.pdfIn PDF document text
    • http://files.aydenbbq.org/uploads/1/3/2/7/132740182/801cfcb56cdf.pdfIn PDF document text
    • http://files.leadhillps.com/uploads/1/3/0/8/130874539/pugapakitav_zoloj_deziguwirelul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://aa8a0926-e23e-42e0-9dee-49df6e1056dc.filesusr.com/ugd/067ecb_e67ce1639fc5451fa5cbcb5e004275c8.pdf?index=trueIn PDF document text
    • https://2fc595df-1745-480a-ba6f-77ac931e530f.filesusr.com/ugd/0ebc1f_9fc7d36e99c44d9f8af8498977632023.pdf?index=trueIn PDF document text
    • https://6a3e42fa-6a48-4587-9ec3-5bb226060aaf.filesusr.com/ugd/43d598_774b1c8fbd914276a328e2762905ea9f.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/7607947038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/52080294018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2674/1405/files/tefitexisoxepurote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2131/9839/files/magic_weapon_ds3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/7356704665.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7108 5848 bytes
SHA-256: 10d3dc68835d0b9e7fcf59e0f0d8de31f6eca518ae20dffc57e0bfb44432b57d
font_01_sfnt_off000084e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E0 12428 bytes
SHA-256: 9801a83d62e982b9916e4a3c101c2be711ecd39c8d27c9906aedfdc5d97a2880
font_02_sfnt_off0000acd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACD8 16172 bytes
SHA-256: 526177ef816c6165251276cba9d37c9cde58c758a098f93fabcc535992017e36

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