Malicious PDF — malware analysis report

Static analysis result for SHA-256 154090b83f24556d…

MALICIOUS

PDF

47.8 KB Created: 2020-10-07 18:51:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e5fd9f22d10fdcd331d03fbd03a5822f SHA-1: e0fbb5b2bfd4e094629031f14f11e89aeed1acbf SHA-256: 154090b83f24556d346c863493bf21342182cee2d1ff320b5eb19847be08e27d
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://ggtraff.ru/pify?keyword=boktai+the+sun+is+in+your+hand+review In PDF document text
    • https://site-1036934.mozfiles.com/files/1036934/nurulabivakidu.pdfIn PDF document text
    • https://site-1041766.mozfiles.com/files/1041766/25918172185.pdfIn PDF document text
    • https://site-1043752.mozfiles.com/files/1043752/77875963912.pdfIn PDF document text
    • https://site-1048568.mozfiles.com/files/1048568/86496571441.pdfIn PDF document text
    • https://site-1037000.mozfiles.com/files/1037000/32972383286.pdfIn PDF document text
    • http://files.jewelleryforgentlemen.com/uploads/1/3/1/4/131482812/zusofugotenunu-nisex.pdfIn PDF document text
    • http://gaxag.nycmoneymavens.com/uploads/1/3/0/7/130775085/557267b99bd.pdfIn PDF document text
    • http://files.artmatterscommunitystudiogallery.com/uploads/1/3/1/4/131437380/5596866.pdfIn PDF document text
    • https://site-1043035.mozfiles.com/files/1043035/kiporeronetalilonirarav.pdfIn PDF document text
    • https://site-1039728.mozfiles.com/files/1039728/sunibejejimewodizuru.pdfIn PDF document text
    • https://site-1039413.mozfiles.com/files/1039413/bugojasikodud.pdfIn PDF document text
    • https://site-1037233.mozfiles.com/files/1037233/3263796301.pdfIn PDF document text
    • https://site-1036644.mozfiles.com/files/1036644/pesewedapulilugowuwo.pdfIn PDF document text
    • https://site-1037218.mozfiles.com/files/1037218/fotaxabe.pdfIn PDF document text
    • https://site-1036829.mozfiles.com/files/1036829/63379007253.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCC 4132 bytes
SHA-256: b332cbabb87205471214da02627e50d8d4fcfab410792e5a6934c2a99a307877
font_01_sfnt_off00007c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C74 5248 bytes
SHA-256: 687c782ed26b7f2a7ac68ea02a5d007ff459a32884fa04263e8a879efd5965e1
font_02_sfnt_off00008e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E62 10212 bytes
SHA-256: 3035739bece63ecd6df2344c2ac689ee9bf8cda9f2177bbd0ae8c7393b5adf39

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