Malicious PDF — malware analysis report

Static analysis result for SHA-256 56283a7a5b5a2736…

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 15:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3facc9d3c8687b8e56bd423ea1a6f934 SHA-1: 8dc29f12982a2438542dc133eb249d634c58e14a SHA-256: 56283a7a5b5a2736af5f1c4288884c3f294791730daf40f6a726a106d5636a12
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, a common technique for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is used to obscure the final destination. While many links point to benign Shopify URLs, the presence of the malicious redirector indicates a malicious intent to lure users to potentially harmful content. No scripts were extracted, limiting the analysis of direct payload delivery.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=dictionnaire+medicale+francais+angla
    • http://wefek.morgannelycedavis.com/uploads/1/3/0/8/130874050/7361829.pdf
    • http://files.deweywebster.net/uploads/1/3/2/7/132741476/tegudepanuzise-xilaxeluloke-gelorokakip-wofugutitojoxuv.pdf
    • http://tinofagi.pinkpapayasblog.com/uploads/1/3/2/7/132710567/9d548d2.pdf
    • http://files.soularrowentertainment.com/uploads/1/3/0/7/130740062/bukakavat_falubuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6583/files/cirrose_heptica_e_suas_complicaes.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/cheat_sheet_for_statistics_exam.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/napunajatojazadogimawaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/como_escribir_un_articulo_de_opinion.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/enlace_fosfodiester_como_se_forma.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/air_cooled_scroll_chiller.pdf
    • https://cdn.shopify.com/s/files/1/0436/5189/1358/files/list_of_functions_in_excel.pdf
    • https://cdn.shopify.com/s/files/1/0438/8149/6744/files/benefits_of_speaking_in_tongues.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1912/files/8362023666.pdf
    • https://cdn.shopify.com/s/files/1/0437/3233/6792/files/motorcycle_camping_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0436/3842/3710/files/67896735230.pdf
    • https://cdn.shopify.com/s/files/1/0433/7526/3898/files/der_riese_map_guide.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006816.bin
9f1101b99445dd67695da16fbc5f10a6f610181477deaa72a87a91eadfd0404e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 5340 bytes
font_01_sfnt_off00007a25.bin
ebe990bf9dbc8c76aca545210c11b7f7a42fb2d6370bb049f1501e0d5a9c0b4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A25 12180 bytes