Malicious PDF — malware analysis report

Static analysis result for SHA-256 edbd49d9d9f0c49b…

MALICIOUS

PDF

41.9 KB Created: 2020-08-14 02:42:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ea3cb05662e25d9db73192e930497ca SHA-1: c7644570743d5ac39a1abdfdf77658b48f03284d SHA-256: edbd49d9d9f0c49b3d59b8dadcb6eef5e84c964b3a230a1c23414e1fe0a5cdfc
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 Shopify domains, but one critical link redirects to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'food handler certification test answers' and the malicious URL. This suggests a phishing or scam attempt using a link farm to obscure the final malicious destination.

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.com/pify?keyword=food+handler+certification+test+answers
    • http://files.lanzaroteboathotel.com/uploads/1/3/1/3/131397927/6b7afc8e.pdf
    • http://files.ervinracing.com/uploads/1/3/2/8/132814544/7763555.pdf
    • http://files.wesleyheightsliving.org/uploads/1/3/2/3/132303010/1996094.pdf
    • http://files.thecandyshopprints.com/uploads/1/3/1/4/131406222/3582334457ca.pdf
    • http://files.johnbanagan.com/uploads/1/3/0/8/130874254/846565.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/90222386911.pdf
    • https://cdn.shopify.com/s/files/1/0447/5843/3943/files/farmacos_antagonistas_h2.pdf
    • https://cdn.shopify.com/s/files/1/0438/0783/4272/files/67008562179.pdf
    • https://cdn.shopify.com/s/files/1/0446/6071/9779/files/95789465613.pdf
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/autobahnen_deutschland_karte.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/pillars_of_eternity_poradnik.pdf
    • https://cdn.shopify.com/s/files/1/0435/7269/1099/files/57739120442.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/rojesidofezuzugowavavazur.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/57297465116.pdf
    • https://cdn.shopify.com/s/files/1/0431/5181/8918/files/danage.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/molajexul.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_off000065f9.bin
91a15f61ec2616e6e4a66cb0d2aa99b169d8eec47a31296469b99376fa4b9f8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F9 5156 bytes
font_01_sfnt_off00007791.bin
d4dd21652995131191e1fbfa3e743f8c864432ba5e3b87de295d7743bc78e30d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7791 10288 bytes

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