Malicious PDF — malware analysis report

Static analysis result for SHA-256 a200df518912fd0a…

MALICIOUS

PDF

36.7 KB Created: 2020-07-31 20:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 743b4cde94b5e7c04c25e9bb8594f450 SHA-1: a1ed7eb5a5f644ee462a51d556562ca02a178d12 SHA-256: a200df518912fd0a7cc0f4bb5e8dd0fbeedb777cb3aacc246af5a89ce566ee09
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=radio+shack+basic+electronics+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to drive traffic to this malicious redirector. The presence of a large number of external PDF links further supports the SEO poisoning 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.cc/pify?keyword=radio+shack+basic+electronics+pdf
    • http://files.georgemoye.com/uploads/1/3/1/1/131164313/5773579.pdf
    • http://files.vintagebentonville.com/uploads/1/3/0/7/130739646/2a7ff979.pdf
    • http://files.ulockitselfstorage.com/uploads/1/3/1/4/131409463/8436405.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/kopaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdf
    • https://cdn.shopify.com/s/files/1/0431/6545/0391/files/xefovewuketuxevilanow.pdf
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/keponira.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
    • https://cdn.shopify.com/s/files/1/0430/9932/4567/files/waniresawugerimemol.pdf
    • https://cdn.shopify.com/s/files/1/0430/4230/8250/files/9129605132.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/80434050739.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/80814112015.pdf
    • https://cdn.shopify.com/s/files/1/0435/4995/0116/files/doniwuxitomoromabewevi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/36902313796.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/zefitozuz.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_off000051a7.bin
9300c6a954daf052d51aaec2552281adb81c0f256a39e9365d99c6907114f0cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51A7 5452 bytes
font_01_sfnt_off00006426.bin
0851f6dd7f7b35ebbe7d21376187ea33b1ba2523bc5aa503a140edd9ce1c4f9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6426 9900 bytes

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