Malicious PDF — malware analysis report

Static analysis result for SHA-256 e95ba93fa34b34c5…

MALICIOUS

PDF

35.5 KB Created: 2020-09-02 00:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a046fc024ba104edb73dd25d11c86fc SHA-1: e536f96c3f992d8902f8e61c2bd534b3e0903cf2 SHA-256: e95ba93fa34b34c5fd374825ab16ba8bcea674e17d8e940fa5ad91dfe4c8fce1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to benign Shopify-hosted PDFs, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to lure users to malicious content. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector, indicating the document's primary purpose is to facilitate this redirection.

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=barcelona+squad+formation+2018
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/vulolowusatuvazo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6300/8661/files/medogulo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/zupibarepegesu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/17759268009.pdf
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/83263684538.pdf
    • https://static.usrfiles.com/ugd/b8c837_79e5dd5dbef8409bbc289c00bab1e641.pdf
    • https://static.usrfiles.com/ugd/af0aa9_bd3afce20be946d2a9353957fd9bca90.pdf
    • https://static.usrfiles.com/ugd/ec0c41_2d1490dc78164f46bca4d42364dd6eef.pdf
    • https://static.usrfiles.com/ugd/ecec20_3df911a4e25c4a809ff2c592f2420ef0.pdf
    • https://static.usrfiles.com/ugd/89064d_bedcb63951464936a1b35e04de74198a.pdf
    • https://static.usrfiles.com/ugd/b8c837_495b255cf0bb4d7cac6070c91c4eddff.pdf
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/wide_eyes_meme.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/23218897091.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/tabaroxowiluwurafadogot.pdf
    • https://cdn.shopify.com/s/files/1/0432/1656/8487/files/47859665281.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_off00004b40.bin
5d2ace67c7b93b1abf023ac48c334434c9548697c5de08190cf1625fbc8fbd7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B40 5860 bytes
font_01_sfnt_off00005f18.bin
5450441ae2e90566fcec81d9d7c306e0d3b1f36e2ab43f4954f14053ce76e97d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 9964 bytes

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