Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0556ff43d4619fd…

MALICIOUS

PDF

44.8 KB Created: 2020-08-08 05:27:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7060fe496fd1f45bb41ff456393c7f13 SHA-1: d67211859766809b01ffc652e49267be09f97827 SHA-256: d0556ff43d4619fde5c5fd93270a9b8cc376720f9552e6b8bd0dbe52687e4aba
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=m.+a.+political+science+notes+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'M. a. political science notes pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. No scripts were extracted, but the presence of a malicious redirector indicates a phishing or malware distribution attempt.

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=m.+a.+political+science+notes+pdf
    • http://files.amcbride.org/uploads/1/3/1/6/131606494/daris-pumanego-jejexexu.pdf
    • http://wiguvifi.buttroselandscape.com/uploads/1/3/1/3/131379833/4984285.pdf
    • http://files.richbrownies.com/uploads/1/3/1/4/131483830/424c10c8ec51a.pdf
    • http://files.oranmormead.com/uploads/1/3/1/3/131384281/doxipokapidij.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/sotenilokewex.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/barreras_y_puentes_en_el_proceso_de_la_comunicacion.pdf
    • https://cdn.shopify.com/s/files/1/0438/6773/4171/files/xoxip.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/differential_algebraic_equation.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/fovik.pdf
    • https://cdn.shopify.com/s/files/1/0438/0190/3264/files/45680094191.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/34609931874.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdf
    • https://cdn.shopify.com/s/files/1/0437/1261/0472/files/44000577031.pdf
    • https://cdn.shopify.com/s/files/1/0437/1746/0120/files/kalkulus_sistem_bilangan_real.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_off00006520.bin
01b078c96af7f94def9b9e190e66b6e0e64c1714783a6043056838707cc9c1ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x6520 4880 bytes
font_01_sfnt_off000075c3.bin
a3257eb6f62fb368169ce94139967659006eaa99916335136c2ae2a15c860dd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x75C3 10176 bytes
font_02_sfnt_off00009871.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9871 4324 bytes