Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc98c0ef9acf77e…

MALICIOUS

PDF

52.2 KB Created: 2020-08-21 11:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 403bb32b9a8e8ead6beb30b0cd656c25 SHA-1: 6aed5215680b91926d3b6fb33642580b1a14535f SHA-256: abc98c0ef9acf77ead61b86443b34cd815f3a09db21264365633e84f705a1060
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. It also exhibits a PDF link farm heuristic, with many links pointing to Shopify domains, likely for SEO poisoning or to obscure the final destination. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. No scripts were extracted from this sample.

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/pify?keyword=gate+2020+information+brochure+pdf
    • http://files.forevermiafoundation.org/uploads/1/3/0/8/130873945/toxopav_derepowini_lofagufig.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/25621978068.pdf
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/tutatobimilesap.pdf
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/nolavomoro.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/15293858698.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/jimuliginapapu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/32158996385.pdf
    • https://cdn.shopify.com/s/files/1/0431/1587/2423/files/74377050810.pdf
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/zilopek.pdf
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/60790933695.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_off000082a5.bin
f1166c600bef8feb59321ef92387f63704dc60e59943493d211401fec8d84247		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A5 5628 bytes
font_01_sfnt_off00009594.bin
5df3a990b6e38e64be7367f9d35be3b225a53c1ec823a2e1dfd27a32a8421491		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9594 15056 bytes

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