Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b8caa9748e7ee8…

MALICIOUS

PDF

40.2 KB Created: 2020-09-10 08:34:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69b78df2c3e02e26868efdd65e1f1366 SHA-1: 63265ea36869126033c401436b24f74bfb82b5e2 SHA-256: d0b8caa9748e7ee82e4af7797e800e9bb7dc9b54bbdb648228f44cfe001b4458
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt at SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector, 'ttraff.link', which is used to disguise the ultimate destination. The document body, though heavily corrupted, contains the string 'Dishonored 2 guide ign' and the malicious redirector URL, reinforcing the lure.

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.link/pify?keyword=dishonored+2+guide+ign
    • https://cdn.shopify.com/s/files/1/0432/4337/2699/files/stylesheet_css_l_g.pdf
    • https://cdn.shopify.com/s/files/1/0430/4663/3621/files/xukurikepevegoxipetut.pdf
    • https://cdn.shopify.com/s/files/1/0431/2694/7989/files/70386102054.pdf
    • https://cdn.shopify.com/s/files/1/0439/0980/8280/files/woodworkers_journal_ezine.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vaxopegi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2929/0390/files/free_sheet_piano_let_it_go.pdf
    • https://cdn.shopify.com/s/files/1/0435/0253/4822/files/cover_page_template_mla.pdf
    • https://static.usrfiles.com/ugd/8b49c6_e11fad9b212f48dba573bbc9fc0de9f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_e75a7c651e56461a906c270a2755499c.pdf
    • https://cdn.shopify.com/s/files/1/0427/4687/1974/files/kijerutinujo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/39223046756.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/jawbone_icon_hd_bluetooth_headset_manual.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_off0000619b.bin
e783fb871d069064254b66bb2026c9459d177f1c954b61d490a119147aaeb5d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x619B 4976 bytes
font_01_sfnt_off00007288.bin
d760d9415c17558682e59c23b3b8c36e615f8626d764bca3911bcbe1bde1ad49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7288 9856 bytes

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