Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a4650c1164d9b16…

MALICIOUS

PDF

44.1 KB Created: 2020-11-08 04:42:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 01822c2ed08a1d308ccf9bd082f93720 SHA-1: afc0a863e2e55c094b3220f25ad7c7c5e336c825 SHA-256: 6a4650c1164d9b16d11dc109c61875143007a957e7b3bc5e60a9d80dfa069cf2
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://traffking.ru/aws?keyword=evermore+alyson+noel+pdf In PDF document text
    • https://tirevenisigagum.weebly.com/uploads/1/3/4/5/134500803/028896.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/vodefutukevanaga.pdfIn PDF document text
    • https://tubumafipe.weebly.com/uploads/1/3/4/4/134458357/xakukav-laliworib.pdfIn PDF document text
    • https://gegakavawedo.weebly.com/uploads/1/3/4/2/134265750/gutoxijesosibe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://lofapaner.files.wordpress.com/2020/11/xosulozogom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6522e146-bfd6-49ea-884a-e534d21ff3a4/trust_apush_significance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53a31d1a-2fa7-4df8-b91f-5c38d5a7d880/89523018712.pdfIn PDF document text
    • https://desoputuwi.files.wordpress.com/2020/11/toilet_ek_prem_katha_full_movie_down.pdfIn PDF document text
    • https://degefun173095822.files.wordpress.com/2020/11/xepenemowolojugixijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e31278ad-28ec-4625-8814-cfb5f126c503/8686738899.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea066089-b355-4919-af8f-5b4ef5923735/molobubiriwinufewelerep.pdfIn PDF document text
    • https://wefaresif.files.wordpress.com/2020/11/95021015300.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/morongo_indian_reservation_museum.pdfIn PDF document text
    • https://kebupud.files.wordpress.com/2020/11/16674380217.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/12130450506.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/nixamubazofomogaxalexi.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_off00006d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F 5308 bytes
SHA-256: 49917ba48b23ad976c2d5d8c0095348063d3016f80c87c227e413a96f48d6f5d
font_01_sfnt_off00007fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA5 10544 bytes
SHA-256: f1f7165c1e20fc9fc74e2289dc34e7f7b970f9d60e9feb036e8de51a2c72faed