Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3a29677fa193db4…

MALICIOUS

PDF

47.3 KB Created: 2020-08-29 22:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e1486cb1bd937f07c40961a29fee85e SHA-1: dab502d7c20e970587749abcda432211b7ee6bb5 SHA-256: d3a29677fa193db4dea189456b250b6a22ff1e248d13237d138a377520be77e7
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.ru/wix?keyword=ambient+weather+ws-2000+australia, which likely serves as a gateway to further malicious activity.

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/wix?keyword=ambient+weather+ws-2000+australia
    • https://static.usrfiles.com/ugd/b8c837_1ccfee43798348d884f3d93ebe55a7a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_b34d500d95844267aa7a0fb2f1b9653a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b47c0721ac234d118d943dcd9daec2fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_99c392296dbf4d24ac4d164e98b1cf7d.pdf
    • https://static.usrfiles.com/ugd/b8c837_49fc44077d1f4567aa6519290ec7698e.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_2dffbb4d52ef4a41b08e6bd5c36579c7.pdf
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/97307774531.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/rainwater_harvesting_system_project.pdf
    • https://static.usrfiles.com/ugd/b8c837_9096d5bc6f8d4641a47c47d913564d34.pdf
    • https://static.usrfiles.com/ugd/a31856_3cf3a767fa78418cb7ec1fa14eb7f461.pdf
    • https://static.usrfiles.com/ugd/b8c837_62554cc13aa845dcba8afb20289ed26a.pdf
    • https://static.usrfiles.com/ugd/98857b_665efb90d2074bb48324577464ac7951.pdf
    • https://static.usrfiles.com/ugd/87a178_13268178e1c7445ea0b246b06b2e91b4.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_off00007975.bin
8d6e5a87ec1f192a5a4f4082390dab52e5918eb8e737fe12ca08143db6234f7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7975 5452 bytes
font_01_sfnt_off00008be3.bin
283f10ccbb4197e6a4521a47edd3c0299cb2267b0832f774e1a16b795c89ae90
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE3 10700 bytes