Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e0f81ae56176ac…

MALICIOUS

PDF

41.0 KB Created: 2020-08-30 18:20:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b0b71c5556d32bfb6b3016291636138 SHA-1: f5e68c0268c9df579b345cc40c3c87ab87f92349 SHA-256: 49e0f81ae56176ac5a45f206a1f099d3d34c6ff0a3670fc53a9490fcb290a962
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains garbled text but includes the target URL, reinforcing the malicious intent.

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=among+the+barons
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/rorizelujijajigumotir.pdf
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/61915395398.pdf
    • https://cdn.shopify.com/s/files/1/0429/2411/4076/files/50821629712.pdf
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/pokemon_sun_and_moon_gba_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/gobikuwomefa.pdf
    • https://cdn.shopify.com/s/files/1/0437/1113/5894/files/86336776885.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/wafamefazefejofaterikozug.pdf
    • https://cdn.shopify.com/s/files/1/0434/3581/9173/files/ziraki.pdf
    • https://cdn.shopify.com/s/files/1/0431/3622/1351/files/44613074871.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/80132113666.pdf
    • https://static.usrfiles.com/ugd/b8c837_15f594087dc04933bad9918a5812b228.pdf
    • https://static.usrfiles.com/ugd/f96b02_66d58bf562d4480ca8d49a6ca18ab10a.pdf
    • https://static.usrfiles.com/ugd/60933b_a0a94518aca741f8a7238cd7e816c40c.pdf
    • https://static.usrfiles.com/ugd/b8c837_56c69a133a9e4447b6721566e63020f2.pdf
    • https://static.usrfiles.com/ugd/10e3af_dd18b63ea6f04f15aeb2f6a62940feea.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_off0000637a.bin
b4eaef1b9a779a43816d186962ec2b2033bf52af2b791af28bd54bd232ec46b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637A 5196 bytes
font_01_sfnt_off000074ed.bin
b8cffc005332a3cb50f0c365ad845153cf28e36707d0cc67f8861fbb8ddfd1d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74ED 10108 bytes

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