Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f4d921167678bb5…

MALICIOUS

PDF

39.0 KB Created: 2020-08-02 07:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99bb7dd9441c9baf2d76464e607d879c SHA-1: e79a4aed1a89a1e2795c0c364bd05e345be8b8bf SHA-256: 1f4d921167678bb557b1d199e15e45fb4c75b37299c7eb290ab5dc0d403315d5
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=garmin+430+simulator+for+mac'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The presence of a 'download button' heuristic further suggests a lure to entice users to click these links. The primary malicious URL is ttraff.com, which likely serves as a gateway to further malicious content or phishing pages.

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=garmin+430+simulator+for+mac
    • http://files.shanehagedorn.com/uploads/1/3/1/3/131379054/2279781.pdf
    • http://files.clevelandschoolsfa.co.uk/uploads/1/3/2/6/132695995/a299c9.pdf
    • http://files.rockingchairuniversity.com/uploads/1/3/0/7/130775063/e2ab5e687.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/mujegafobane.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/56073240321.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/27547677525.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4540/files/fumexolasarinofarexoku.pdf
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/pevibad.pdf
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/guvemexifatu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/68229820493.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/662230257.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/dojupixafo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/gikuze.pdf
    • https://cdn.shopify.com/s/files/1/0435/6371/2671/files/87249156151.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_off00005a0a.bin
fd5a7dff24a4a616d7d1c20db99cf9391a3b3efcc80e4afe605a4a17de05111e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0A 5452 bytes
font_01_sfnt_off00006c88.bin
5034df3920248d107145ff0dd0a94fd7ec6077a633e1b2fb10a254712d49e480		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C88 10080 bytes

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