Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe28b63588214ab…

MALICIOUS

PDF

41.1 KB Created: 2020-10-31 04:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b498a5149f414f95f4dcf700b3cd2194 SHA-1: 84a9768d49f4787ed73d5a998fd29ac4bb3bc9dd SHA-256: bfe28b63588214ab024fa5d14b03360c891c719c0817dd00c54a8b95726c0dbd
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The presence of numerous external PDF links suggests an attempt at SEO manipulation or a link farm designed to distribute malicious content or redirect users to phishing sites.

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 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.
  • 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/strik?keyword=the+transall+saga+summary In PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/3d029.pdfIn PDF document text
    • https://betutinixe.weebly.com/uploads/1/3/4/4/134481053/toxefenajadisazuvod.pdfIn PDF document text
    • https://morozosewiveloz.weebly.com/uploads/1/3/4/3/134387595/63c8d19066e3c8f.pdfIn PDF document text
    • https://xivenisulebitok.weebly.com/uploads/1/3/1/3/131378814/dinatoxinozuvusimis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tadovu/kutakomesubilopasolanuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4846/7094/files/asi_se_dice_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/62514537926.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/rafozanoka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3a46d39-6867-4051-a8e7-3575b133ee52/81139517331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4810/6660/files/crucial_accountability_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/734b4c56-065f-44df-b349-6d81cd065fab/32952842770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c32622b7-dff3-4eff-9064-3296ad392431/xatisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81719727-58b0-44bd-b8da-36f7b89986d9/jitijetofemubum.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/65376635351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/8318/3283/files/resumen_de_la_biblia_del_vendedor.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 5152 bytes
SHA-256: d26b37d92fd29a5e6a1e52190fdc787a7de09cd00734fe4dc9b195bd20100cff
font_01_sfnt_off000072e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E4 10816 bytes
SHA-256: 6d1aa36b643118d2aa8b0ab53236ad3e7196f83a745eea20d28539f3e08c8114

Open this report in the interactive analyzer, or submit your own file for analysis.