Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e47ce86868f654…

MALICIOUS

PDF

39.4 KB Created: 2020-08-19 05:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91639c416674dbc2f15b8b710f81aa9c SHA-1: e63dbed5b951752e1ff9b431399744c6c278dc27 SHA-256: f0e47ce86868f6540390c64932cedd4ea370027894cd8f7e302bf10fd3342cf8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=chrome++version+67'. This indicates a social engineering attempt to trick the user into clicking the link, likely for credential harvesting or malware delivery. The file also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on cdn.shopify.com. No scripts were extracted from this sample.

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=chrome++version+67
    • http://files.bgxcouriers.com/uploads/1/3/1/3/131383743/5aec3777d0.pdf
    • http://fuzota.prowrestlinghistoricalsociety.com/uploads/1/3/0/8/130874359/249bf5ad354c.pdf
    • https://cdn.shopify.com/s/files/1/0431/1023/6321/files/kikiz.pdf
    • https://cdn.shopify.com/s/files/1/0447/4827/5863/files/rabax.pdf
    • https://cdn.shopify.com/s/files/1/0438/0078/9154/files/75698451542.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/biblical_numerology_chart.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4675/files/42663434011.pdf
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/puwanobabemoto.pdf
    • https://cdn.shopify.com/s/files/1/0431/2973/3282/files/lefiliv.pdf
    • https://cdn.shopify.com/s/files/1/0431/7275/7670/files/chemistry_text_book_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/58333387044.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zemeletitofugawekabol.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_off00005dbe.bin
891abb87625f04ad26e04973070db00519a6a22634cebdaef311adb5127ba183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBE 4884 bytes
font_01_sfnt_off00006e48.bin
3d795b980032baa4a0c3c804ac80b2042e94bcb07426981c28f500287a962fd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E48 10276 bytes

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