Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63c68ea83bc0157…

MALICIOUS

PDF

35.6 KB Created: 2020-08-19 05:53:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e5112b16ed0220eb840139eae923e13 SHA-1: 304fb34a1fd93167d74afe3136ff99f5bf4bf34d SHA-256: b63c68ea83bc01572cd85d72494ecadc51d27aa9e233cb80b37ca3d4ff191d6b
120 Risk Score

Malware Insights

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

The PDF contains a deceptive document body masquerading as a manual for a rice cooker, which is a common lure. It embeds numerous links, with the primary one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, pointing to ttraff.com. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content.

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=aroma+rice+cooker+model+arc-+936d+manual
    • http://files.magicaljohn.com/uploads/1/3/0/8/130814666/dozamefo_posonano_befuta.pdf
    • http://files.mimiandjoel.us/uploads/1/3/1/4/131453712/fisosivesusu.pdf
    • http://pewakunis.foodfixations.com/uploads/1/3/1/6/131606027/6fe91.pdf
    • https://cdn.shopify.com/s/files/1/0437/2440/6935/files/cv_for_medical_lab_technician.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/81645790495.pdf
    • https://cdn.shopify.com/s/files/1/0430/8615/1833/files/ralifite.pdf
    • https://cdn.shopify.com/s/files/1/0431/7518/2496/files/what_is_pulmonary_function_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/make_smaller_file_size_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2957/files/crowdsource_reporter_github.pdf
    • https://cdn.shopify.com/s/files/1/0449/1496/6695/files/vevozazegagefapi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/pirabogazomuzokatelukojan.pdf
    • https://cdn.shopify.com/s/files/1/0434/4440/4374/files/citroen_berlingo_2020_manual.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_off00004df8.bin
e3608777dada59ccbcd41eaf84e7dfba3bf4fdd99ba57360a7ea010ae3d7d1cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF8 5464 bytes
font_01_sfnt_off0000606c.bin
4268a9d8676f1b4d501e7447f27996c4a876439043a5f8673f01f6b756ba04ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x606C 9768 bytes

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