Malicious PDF — malware analysis report

Static analysis result for SHA-256 6056da29d1c7d16a…

MALICIOUS

PDF

42.8 KB Created: 2020-09-30 23:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: bfb5e6e280792d668b829deea63095d5 SHA-1: 74a809ce5c1dbd208a53a01b72c559f96a8dbba3 SHA-256: 6056da29d1c7d16a308abc8596e4f3c3367c176970ae784c6cbaa5468adf17c6
184 Risk Score

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://cctraff.ru/strik?keyword=comptia+cysa+pdf In PDF document text
    • https://site-1037157.mozfiles.com/files/1037157/5111730201.pdfIn PDF document text
    • https://site-1036695.mozfiles.com/files/1036695/godowaxororisevepibib.pdfIn PDF document text
    • https://site-1036684.mozfiles.com/files/1036684/vivuxopudotodugoliwax.pdfIn PDF document text
    • https://site-1036830.mozfiles.com/files/1036830/71531334541.pdfIn PDF document text
    • https://site-1037028.mozfiles.com/files/1037028/60016461322.pdfIn PDF document text
    • http://jowopa.coachmo.net/uploads/1/3/0/9/130969742/4699521.pdfIn PDF document text
    • http://nililimu.kaysfitcafe.com/uploads/1/3/1/6/131637419/popunizima.pdfIn PDF document text
    • http://files.mountaintechnicalsolutions.com/uploads/1/3/0/8/130814644/kavov-rikuvefok-zutobod-subuxubu.pdfIn PDF document text
    • http://files.mpsjenglish.com/uploads/1/3/1/1/131164431/3f56073e2e.pdfIn PDF document text
    • http://files.lonelyroadhandcraftedllc.com/uploads/1/3/1/1/131164425/353c88336.pdfIn PDF document text
    • http://vomulomi.finestwallpaper.com/uploads/1/3/1/3/131383609/bovapak-todedijon.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://uploads.strikinglycdn.com/files/a7dc3569-0900-433a-a6e4-91803b828eb6/86195499004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1031a962-f6d9-4263-8aa1-8de178b9f549/37778450422.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7360533-fe2f-4628-98b0-f1562ef70484/24722403335.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e9e8616-47f8-4fad-9490-1995a4b60081/36467624659.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/619275ad-4717-41b9-8609-175f999dcae9/97611445582.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

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_off00005d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6A 4864 bytes
SHA-256: 77570893b1c611a71e21181c5eca65561c0aa56619ee58df14b0807dbf55c040
font_01_sfnt_off00006dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFF 10036 bytes
SHA-256: cc770ba3d9072c1145c8c6699a8b100b1d60916a1fd624fb54768e50e1b96764
font_02_sfnt_off00009045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9045 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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