Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2bfeed5f6a80c4…

MALICIOUS

PDF

46.3 KB Created: 2020-08-12 01:16:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3698a8a2e77903e14e1f332049d73443 SHA-1: 491b99c6267664559ec897a6e4d019191ba68013 SHA-256: 5c2bfeed5f6a80c43e7b17360bd491e2790ea7ad467c9f4ef563f37bff2f48f3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to trick users into believing they are involved in a lottery or prize scheme requiring payment. The presence of embedded links and the nature of the lure strongly suggest an attempt to direct users to malicious infrastructure for further exploitation, likely as a phishing or scam attempt.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ttraff.ru/pify?keyword=gmat+probability+questions+and+answers+pdf
    • http://files.rylcult.com/uploads/1/3/1/3/131379409/fetub.pdf
    • http://files.florarosatherapies.com/uploads/1/3/1/8/131872055/4659144.pdf
    • http://files.vbstemtrifecta.com/uploads/1/3/0/7/130775245/4876332.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/29665072810.pdf
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/pexemugadosupekepamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/katumofadajovagi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6977/5782/files/telebevirosalanidirep.pdf
    • https://cdn.shopify.com/s/files/1/0431/7321/6412/files/kanobolikaxowag.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/94767642145.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/84257150265.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/noves.pdf
    • https://cdn.shopify.com/s/files/1/0438/9198/2491/files/xiwapus.pdf
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/libro_cazadores_de_microbios_resumen.pdf
    • https://cdn.shopify.com/s/files/1/0429/4003/9324/files/gupexubepe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/gaxedajekaxubebujevux.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/cadena_de_suministro_global.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075ac.bin
ead7cf3f20ee64c48e2f988cfeeaace528d540ccbcea0ee5bd6c49cf77447472		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AC 5680 bytes
font_01_sfnt_off000088f5.bin
456077068d5ef0cb0f55581764ff2f3175822bef5b359470bb046f2a2be89fc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88F5 10416 bytes

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