Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce65532aa2a0910…

MALICIOUS

PDF

55.0 KB Created: 2020-09-19 21:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41f5f5d85870c49d22052df0a0537052 SHA-1: d62c96bbae8973d1da81e76529679ce634bc502f SHA-256: 0ce65532aa2a09107da60ec5ae50995204f4b29dea2285868546933ec9b409c8
184 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with several heuristics identifying it as a link farm and a redirector to malicious infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URLs likely serve as lures to phishing or malware distribution sites, and the presence of a redirector URL suggests an attempt to obscure the final destination.

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.me/wix?keyword=life+cycle+of+a+tiger+moth In PDF document text
    • http://jorufujoz.narakucostumes.com/uploads/1/3/1/4/131483281/9204606.pdfIn PDF document text
    • http://nibezok.babeswithbabesfitness.com/uploads/1/3/0/7/130776485/pifale-xotanur.pdfIn PDF document text
    • http://mubapujo.stmonicasparish.com.au/uploads/1/3/1/3/131380005/turoduvutimefaruwab.pdfIn PDF document text
    • http://files.abqcraftshows.com/uploads/1/3/1/8/131856160/poxafes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8e0f09db-b0f6-4525-af05-a4389ded4393.filesusr.com/ugd/dcbeda_df10c5d0e81e4af299c70b4cc2651fa4.pdf?index=trueIn PDF document text
    • https://0e19db2d-7354-4798-a0ef-b0d644ddf8f4.filesusr.com/ugd/70e5f7_d0f7475b95094cf2b2630434afe10304.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4051/7538/files/connotation_and_denotation_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/megigarosuxefikamurak.pdfIn PDF document text
    • https://ffacb3f2-7f7c-426c-97e7-06704aaa412b.filesusr.com/ugd/e7e4a0_ecd602c55f424348a719963b93a2e5f2.pdf?index=trueIn PDF document text
    • https://72aca1f5-e894-4f84-85cb-204a6b362999.filesusr.com/ugd/9f69bd_03337cfd3cb8467dba7dccb21f2b0bfc.pdf?index=trueIn PDF document text
    • https://bae1a076-7111-460d-a44a-a5876bc42673.filesusr.com/ugd/8bc2a6_2873a69599bb43f5b308b0a21581b2c9.pdf?index=trueIn PDF document text
    • https://43fc01ab-aad1-42e0-98a4-2493dc45da65.filesusr.com/ugd/1b0481_0da82517453a47269fedc70a8ed309f7.pdf?index=trueIn PDF document text
    • https://0130b6d3-1290-4715-a84e-3ea0bc1a4e8c.filesusr.com/ugd/9f69bd_210544aee5cd4138bd44d8556a6b86a3.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 5160 bytes
SHA-256: c79f83f802b03c03253fd2ce614acf8b64e6f58f083bba59d8a50638139562b2
font_01_sfnt_off00008fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC3 13008 bytes
SHA-256: 9f1b982ffba3c71db3684b06c9806eae1dea60f049d818c8f3fc1ad3335ce9d3
font_02_sfnt_off0000ba11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA11 16132 bytes
SHA-256: 06d84a79787f49517cba9647d12dd77c675544b9e46e70dbd0c3ec2b8d2a160e