Malicious PDF — malware analysis report

Static analysis result for SHA-256 adcfbe4b771e3752…

MALICIOUS

PDF

55.2 KB Created: 2020-07-20 15:25:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbb71a02325975f043e89117127951f0 SHA-1: 38072b19a234031b5636bb4387a3ae7f8956292a SHA-256: adcfbe4b771e37521511c3616b8ed24e6bc1e07ace185a567bd9153936f5c556
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to lure users to a malicious site, likely for phishing or malware distribution. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted from this sample, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=neem+tree+information+in+marathi+pdf
    • http://files.jpainthorses.com/uploads/1/3/1/4/131438176/rapupiporud-tusowu-ratazikij-zitedixikepuva.pdf
    • http://files.millbrookrotarydirectory.com/uploads/1/3/0/7/130775846/d99ea.pdf
    • http://files.backoftherig.com/uploads/1/3/1/0/131069808/c30d2daf5457.pdf
    • http://files.mp2gfitshop.com/uploads/1/3/1/3/131380158/tawalabopibofuva.pdf
    • http://files.stdavidscarrmill.org/uploads/1/3/1/8/131871874/wagog_zemevopidabavo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6175/5560/files/60838190330.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93434530871.pdf
    • https://cdn.shopify.com/s/files/1/0433/0435/3950/files/xivawosidamani.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/28326805123.pdf
    • https://cdn.shopify.com/s/files/1/0433/3453/3275/files/nuginisopog.pdf
    • https://wijikud.files.wordpress.com/2020/07/kalozowobakuburifez.pdf
    • https://vatavaj62443269.files.wordpress.com/2020/06/bulemudinijifu.pdf
    • https://lumuwojevari.files.wordpress.com/2020/07/lurujope.pdf
    • https://niteperozis.files.wordpress.com/2020/06/vuzuxubivelepejakig.pdf
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/xatafoxotug.pdf
    • https://cdn.shopify.com/s/files/1/0430/2723/4969/files/rotanatutoligodowefipur.pdf
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/japoxufinidaxejijibija.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/deved.pdf
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/fuluxoxeluriwonetelat.pdf
    • https://cdn.shopify.com/s/files/1/0440/3471/9909/files/suvolenonaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/33724522639.pdf
    • https://cdn.shopify.com/s/files/1/0429/3758/1734/files/2367058100.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_off000072d3.bin
593b5e2c93aafc04dcde6bfef6dc43d09c23937cba3167263a2cde0f9108718c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72D3 4828 bytes
font_01_sfnt_off00008301.bin
985a720d99207585ac64c636cf94df30180cbf78570fd381072f145bebb3ef84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8301 13412 bytes
font_02_sfnt_off0000ada5.bin
992a3c938d58eb63b701ecfaa5514fdceeda342082878bd81c061e057e144229		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADA5 9480 bytes

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