Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f861916aa99031c…

MALICIOUS

PDF

68.3 KB Created: 2020-08-31 06:49:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 563a3f5e06b4799fe18ef7f391751bbf SHA-1: ccd546a5046f1f69e32462677e49b96146e53a8e SHA-256: 9f861916aa99031cca5c410d3c234a0718e6077a5d4b97c1a09ea5eab4586aba
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, many hosted on cdn.shopify.com, which is a common tactic for SEO poisoning or distributing malicious content. The embedded URL 'https://ttraff.cc/wix?keyword=secrets+of+grindea+quest+guide' is presented within the document body, disguised as a game guide, to entice clicks.

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.cc/wix?keyword=secrets+of+grindea+quest+guide
    • https://cdn.shopify.com/s/files/1/0440/0673/6037/files/sijodejofuve.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/minecraft_0._13._0_apk_download.pdf
    • https://cdn.shopify.com/s/files/1/0454/3342/1982/files/attestation_pole_emploi_modifiable.pdf
    • https://cdn.shopify.com/s/files/1/0433/9692/3543/files/ponavosuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3812/1895/files/sosagawarimipimu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1940/2405/files/fakazamuzufaxilamipivife.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/53766006400.pdf
    • https://cdn.shopify.com/s/files/1/0439/2756/8552/files/tegafozu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/nedaviwiduxukubebalamuvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/wesonuzojodufinigebonid.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_off0000cd3f.bin
30eb10a683caa65d6aa17a516726521933c8a704b66161cc02f7f1718bb75f33		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3F 5388 bytes
font_01_sfnt_off0000df8d.bin
3054ab06b29e0c30426b65128b56cfd3e177d09f29fcad5bc7b5e2e4196ad024		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8D 10772 bytes

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