Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af22e767f6e3545…

MALICIOUS

PDF

65.2 KB Created: 2020-10-17 22:30:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: a91d8cde7a3e7f3954076346af2a6193 SHA-1: 51a0cf03b2a8b063346e66f7dc33dce834f7c42e SHA-256: 4af22e767f6e3545cfbc869b1145af2a269965fe11b13a0f5625f9df5c579619
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://cctraff.ru/123?keyword=agricultural+solid+waste+management+pdf In PDF document text
    • https://gujodoludota.weebly.com/uploads/1/3/2/6/132681740/bokamu.pdfIn PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/5223067.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/zefegawi.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/851b143458c0.pdfIn PDF document text
    • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/9f9c5ea9e5d.pdfIn PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/1168988.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/5677351.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/355464.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/sivadivaloso-zukejubes-luniwiga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/3241/8725/files/windows_10_1903_manually_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/speedway_series_125_amp_flux_welder_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8339/9329/files/genotuligezewis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4156/6105/files/project_based_writing_grade_6-8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4473/2833/files/washington_wizards_basketball_schedule_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0113/9359/files/lookout_mountain_elementary_parentvue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2474/0252/files/65766625230.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d4f33b6-3d1c-42af-b42a-f67213381cfd/3095076947.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fd31c8c-4c28-4bb5-bcdd-6d94a9890ea6/20678609535.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b96de4ae-832d-4fa6-ab65-318057155a80/gikajavoputorowefomigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60bac4ee-5085-4944-abbc-4f07c493e5d5/nexikare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faa63999-f4ed-462e-a8ae-6778d104a4d6/kixulogugagesawas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cc97269-dfd8-446b-8b56-8c7aa86d586c/tunobuwigamafebimuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e597fc9c-01e6-4ee5-9bf4-529bc3ce0d19/16580882789.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd2cfa60-bdf1-4b80-83db-de5525d593a3/mibiwixuretamumizabinifox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6722e176-3224-4e35-a682-79bb32053bf4/i_feel_good_tab.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC084 5556 bytes
SHA-256: a2c7913290d7e4573b7408c1d8eec57f6e8c126c590b34201accfeac298988ea
font_01_sfnt_off0000d361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD361 10372 bytes
SHA-256: 6f4ee32b02094a3dbe0f7e73f720bc1f09ea87d1b0f82a44d3a97c65683294c0