Malicious PDF — malware analysis report

Static analysis result for SHA-256 962fe91534fb5420…

MALICIOUS

PDF

49.2 KB Created: 2020-09-01 06:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30fa2d57f6a63983e7c68dfec6afd385 SHA-1: c14eaa6efb04066fffcb19ac05014d30beb56349 SHA-256: 962fe91534fb542001ceed7b7ad123a3414aa7c78284a6ab1d34770e1cf2c452
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to an 'aieee online form 2020' and urgency lures, suggesting a phishing attempt. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify, likely for SEO manipulation or to obscure the final malicious destination.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=aieee+online+form+2020
    • https://static.usrfiles.com/ugd/cb2bed_af7b3153dcd7442f94d12bb598be4a46.pdf
    • https://static.usrfiles.com/ugd/32acb1_df96c2d7d81b49938092c2202c0e2132.pdf
    • https://static.usrfiles.com/ugd/50c35f_0a9b6b57af9f4f1b9207e5a02a82fd81.pdf
    • https://static.usrfiles.com/ugd/77d535_9fdc8bac164d472592cc69a549d48b28.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/18728915088.pdf
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/gebuvoritaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/novipejajafaferap.pdf
    • https://cdn.shopify.com/s/files/1/0430/7566/6073/files/39950167506.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5671/files/numeros_romanos_del_1_al_200.pdf
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/31796826653.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/totuvatenaxo.pdf
    • https://cdn.shopify.com/s/files/1/0440/6866/7542/files/spring_framework_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0445/8296/1311/files/sezazipibuxevanud.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_off00008479.bin
c01743da2835421cb28510de28f254e513f35bf893939aeccccb3cfab406d5d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8479 4788 bytes
font_01_sfnt_off000094b1.bin
f9d357799848fa5982b47194bfc0ca2af645baf991d473a8990dedc816eeb279		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94B1 10376 bytes

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