Malicious PDF — malware analysis report

Static analysis result for SHA-256 486d28c9103d480f…

MALICIOUS

PDF

44.8 KB Created: 2020-09-02 15:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e4b48be1455615b6fd1653e29a9e146 SHA-1: d646445bec5a5b0a4c654dd81b6cc1f08767dfee SHA-256: 486d28c9103d480f5cf62ac4935e83afd893ee0e1758108bd748d16f88090f8c
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, includes the text 'Citing in apa format example', suggesting a lure to disguise the malicious intent. The presence of numerous links to Shopify domains, including one identified as a redirector, indicates a link farm or SEO poisoning tactic to distribute malicious content.

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.com/wix?keyword=citing+in+apa+format+example
    • https://cdn.shopify.com/s/files/1/0431/7085/7124/files/revitewete.pdf
    • https://cdn.shopify.com/s/files/1/0432/7407/6315/files/doteligoketuda.pdf
    • https://cdn.shopify.com/s/files/1/0432/7365/0334/files/11th_zoology_book_in_tamil_medium.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/catalogue_ikea_maroc.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/nespresso_milk_frother_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/manual_administracion_hotelera.pdf
    • https://cdn.shopify.com/s/files/1/0435/7157/6993/files/ashraf_ali_thanvi_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/fisco_agenda_2020_descarga_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0448/5441/1425/files/befuwapezunaworel.pdf
    • https://cdn.shopify.com/s/files/1/0457/6237/9940/files/vimoz.pdf
    • https://cdn.shopify.com/s/files/1/0463/6350/8891/files/12427508058.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/syntax_highlighting_discord.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/55870589617.pdf
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/joxemijexasekunisutat.pdf
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/james_stewart_calculus_4th_edition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006502.bin
a59cc9dd5a971faec70245f13fafc0638737a7524d63ebf2cc9090b374224ee6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6502 4924 bytes
font_01_sfnt_off000075b0.bin
f7b39509663be73c4f01cb0f2b98cdcd630b6256e2fee853aa06944946fb900e
pdf-font-stream PDF embedded font (sfnt) at offset 0x75B0 10120 bytes
font_02_sfnt_off00009856.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9856 4324 bytes