Malicious PDF — malware analysis report

Static analysis result for SHA-256 488a201efaac4128…

MALICIOUS

PDF

32.3 KB Created: 2020-08-19 14:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73c2a3932b1feea31ec294f83fa6e9dc SHA-1: 863972eba02be109c382861daee5a57dcc311ae1 SHA-256: 488a201efaac4128a4997a730ab9c439bb7dc26c58d8b69f095711d0967d1398
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to what appears to be a link farm hosted on cdn.shopify.com, designed to redirect users to malicious infrastructure. One critical heuristic identified a link to a known malicious redirector, ttraff.com, with a query parameter suggesting a lure. The document body, though heavily obfuscated, contains the string 'cartoon kiss wallpaper' and a URL that aligns with the malicious redirector. The presence of a link farm and a malicious redirector indicates a phishing or social engineering attack aimed at driving traffic to malicious sites.

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=cartoon+kiss+wallpaper
    • http://files.turuan.org/uploads/1/3/1/6/131637881/a34d488358.pdf
    • http://files.delgadorivera.com/uploads/1/3/1/4/131483955/tugakuwejopemowoxe.pdf
    • http://files.landartfinegardening.com/uploads/1/3/0/7/130739022/jefov.pdf
    • http://nexudone.markcgarrett.org/uploads/1/3/1/4/131407068/19cc0074.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/mowedan.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/jefiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/jofewopopirinilise.pdf
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/toninalepexazatokidetaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/felimozonutim.pdf
    • https://cdn.shopify.com/s/files/1/0437/9652/9314/files/manualidades_con_reciclaje.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/low_carb_diet_shopping_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/2506/2298/files/laxevufolopufilo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0635/2804/files/36558006497.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/vuzonera.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_off000043fa.bin
bcc36ef7bba247986346a40beaa4f70a0958f3b81439bed6a95d8de87e2aa2c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43FA 4876 bytes
font_01_sfnt_off000054af.bin
227fcea406dc055dc93fcb16ff25c33a0139ad225acd7e71a4a40edd95470485		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54AF 9368 bytes

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