Malicious PDF — malware analysis report

Static analysis result for SHA-256 df472b7b076f9485…

MALICIOUS

PDF

46.2 KB Created: 2020-08-11 13:16:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3da092fbbafb22ec7ea34054f0cee161 SHA-1: 16631803448a630a38875ebd79f8e4590caf9674 SHA-256: df472b7b076f94855d2512d1859972c463bad58cc153175cd70354633ce91dca
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links to external resources, masquerading as academic material. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=what+is+centralisation+and+decentralisation+pdf', indicating a phishing or malware distribution attempt. The document body, though corrupted, contains references to the redirector URL and other Shopify-hosted PDF links, suggesting a link farm designed to obscure the true malicious destination.

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/pify?keyword=what+is+centralisation+and+decentralisation+pdf
    • http://files.intoschool.org/uploads/1/3/1/4/131483143/tumidovabar.pdf
    • http://files.woonsocketautismbenefit.org/uploads/1/3/0/7/130775387/revodanubegu_toluxelolekaj_wakoboxabiji_musamil.pdf
    • http://files.beeidentification.com/uploads/1/3/0/8/130815437/busaw.pdf
    • http://files.nature44.com/uploads/1/3/1/1/131164174/9d475d.pdf
    • https://cdn.shopify.com/s/files/1/0444/3661/9431/files/b._sc_1st_year_math_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/6091/9446/files/28195760525.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/47498788785.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/68061334787.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/mac_gba_emulators.pdf
    • https://cdn.shopify.com/s/files/1/0436/0201/8467/files/manual_de_epidemiologia_basica.pdf
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/wadojuvozigena.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/48820555440.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/wajitazopovomaxutosovo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/jupemekuzajijofomesode.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/44787018467.pdf
    • https://cdn.shopify.com/s/files/1/0446/8637/7113/files/amplitude_modulation_equation.pdf
    • https://cdn.shopify.com/s/files/1/0431/3494/3389/files/65219573429.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_off000063c8.bin
81b83ab1afaf5658ffe58942381fb07625a985eda57ecb1ebcf8b10e282f2f40
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 5376 bytes
font_01_sfnt_off0000768a.bin
301e1093c4e2397245bb8b2b0a62062d87606adc0858631ebbd99e855705e81b
pdf-font-stream PDF embedded font (sfnt) at offset 0x768A 5256 bytes
font_02_sfnt_off0000885f.bin
54368f1c8afad7661e4cf2f448ebd040db089bd01775bd9245720ed0e81f2060
pdf-font-stream PDF embedded font (sfnt) at offset 0x885F 10176 bytes