Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c5e97d8e4282c6…

MALICIOUS

PDF

44.8 KB Created: 2020-08-02 16:02:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80299199105b2690165f8377b751fb52 SHA-1: e747cc1d38b3ce91d41a60f9df4c76a6e4f0b87c SHA-256: d6c5e97d8e4282c62b402a0baf3deda6862790c8ae911cb0c9396c19846c9697
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, along with numerous other PDF links, suggesting a link farm or redirection strategy. The presence of a 'download button' heuristic further supports the lure to click the malicious link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=middle+finger+cursors
    • http://files.dataco.ca/uploads/1/3/2/8/132814039/36eb07bfb.pdf
    • http://files.tbpermanent.co.uk/uploads/1/3/1/4/131453436/2f8f7.pdf
    • http://vagawixak.midwestmealplans.com/uploads/1/3/0/7/130775219/nunovatavub-nakikaros.pdf
    • http://files.mknutritionsystems.com/uploads/1/3/1/6/131606069/f2ebc30b74449.pdf
    • http://files.wildfaithwellness.com/uploads/1/3/2/3/132302871/fulimafokanabigobot.pdf
    • https://cdn.shopify.com/s/files/1/0439/3123/8555/files/kepokekuvukibapowavade.pdf
    • https://cdn.shopify.com/s/files/1/0433/9721/8458/files/navunerosalanemabemopu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/66714414411.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/79404301020.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4179/files/20739401738.pdf
    • https://cdn.shopify.com/s/files/1/0431/7983/5549/files/jiborojif.pdf
    • https://cdn.shopify.com/s/files/1/0439/1682/0648/files/what_time_is_the_winter_classic_2017.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6262/files/essentials_of_investments.pdf
    • https://cdn.shopify.com/s/files/1/0428/5785/7187/files/94396345560.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3658/files/80499566395.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/68751501018.pdf
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/6917117185.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1386/files/rorir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005918.bin
8c7709bbc6c408daefe583f168a6fcddedc89e66a1ab82c81360125039cd5c5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5918 4984 bytes
font_01_sfnt_off00006a2d.bin
97af51db3128db7f0c393fc4470f1e67f3b2b2f447dbb1be6add185c0accfcae
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2D 11728 bytes
font_02_sfnt_off000090fa.bin
81918e439fdf6760eee2c5f98ccabfe7b36dc3ccf449f7939d14671851e10daf
pdf-font-stream PDF embedded font (sfnt) at offset 0x90FA 16188 bytes