Malicious PDF — malware analysis report

Static analysis result for SHA-256 d83d8e7243ed2f4a…

MALICIOUS

PDF

34.2 KB Created: 2020-08-12 07:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 500e8b06d09f92854b294e6fb6d36655 SHA-1: faaa61feb31def39d484d06008aa6f34ffd83d71 SHA-256: d83d8e7243ed2f4a1219868675b1e95c988e359332d9c36b92328a559cdfa448
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a pneumatic cylinder catalogue. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is 'https://ttraff.com/pify?keyword=pneumatic+cylinder+catalogue+pdf', which likely serves as a lure to a malicious site.

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=pneumatic+cylinder+catalogue+pdf
    • http://files.thetravelvice.com/uploads/1/3/1/4/131438379/zasubalogim.pdf
    • http://files.totalplasma.org/uploads/1/3/2/8/132814415/zuwiwufep-rofuzolaji-milinevibu.pdf
    • http://files.vanvalkenburgbuilders.com/uploads/1/3/0/8/130813111/3204594.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/31285931006.pdf
    • https://cdn.shopify.com/s/files/1/0449/8151/8494/files/antigeno_carcinoembrionario_cancer_de_colon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/peradilan_agama_di_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/99463646719.pdf
    • https://cdn.shopify.com/s/files/1/0437/2060/5848/files/gijujupez.pdf
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/72659877177.pdf
    • https://cdn.shopify.com/s/files/1/0437/3918/5303/files/5025829657.pdf
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/1135918153.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/84985690103.pdf
    • https://cdn.shopify.com/s/files/1/0434/2503/8498/files/pixiwuvimuvuritolufi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/59729756417.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/76966841378.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_off00004790.bin
b3d408f25713f2af26aa15225217a98505017c2da44bbe754aa84156621500f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4790 5400 bytes
font_01_sfnt_off000059d9.bin
9717912a562a916177c9312f083af7f157edf3edc4feaae4595468d634f66868		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D9 9964 bytes

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