Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dee0b0e9ab756d8…

MALICIOUS

PDF

42.8 KB Created: 2020-08-17 04:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7c1fda3c11e8cf47c5987823815744 SHA-1: 33b6d0fe8c4d2ca3afe4d36a265422d781f64d95 SHA-256: 8dee0b0e9ab756d830d8a350b436b68d18a5d84271f0121f0e69494f34fadb49
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=jurnal+ageratum+conyzoides+pdf'. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of many links to Shopify-hosted PDFs suggests an attempt to blend in with legitimate content while distributing malicious links.

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.ru/pify?keyword=jurnal+ageratum+conyzoides+pdf
    • http://tisun.poysontee.com/uploads/1/3/0/7/130774982/4194028.pdf
    • http://goramo.winstonswisheducation.com/uploads/1/3/1/0/131070054/5104841b3.pdf
    • https://cdn.shopify.com/s/files/1/0434/3398/4162/files/el_libro_del_alquimista.pdf
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/sword_hunter_badge.pdf
    • https://cdn.shopify.com/s/files/1/0440/8115/2152/files/moduzixezurusitaligikepi.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/ruxatapamejusejuna.pdf
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/xibarezagolajelisi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/8166177649.pdf
    • https://cdn.shopify.com/s/files/1/0435/6059/9701/files/best_business_plan_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/formato_certificado_medico_imss.pdf
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/94525756436.pdf
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/wedoluzemulotafixudanaja.pdf
    • https://cdn.shopify.com/s/files/1/0432/9108/2918/files/ponuvigabakubowowaxisi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/febofavevorejadefaxubo.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_off0000649f.bin
e39c3740eacafb85830dadcefe995a663daba6c246686f64a77c1487239e21a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x649F 5616 bytes
font_01_sfnt_off000077b4.bin
4e8d2af2f784064a03a4b5c8afea898b72af44da21a740bedf15fa29b05f2dc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B4 11960 bytes

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