Malicious PDF — malware analysis report

Static analysis result for SHA-256 adfab39a537e4064…

MALICIOUS

PDF

41.3 KB Created: 2020-09-07 13:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ed73d0ea57a7187f7efaaf03ac1a6af SHA-1: 7aca7b7a30f52ca2ba163be84c11a62c5849f4f0 SHA-256: adfab39a537e4064f7860fa76c50ae12c5a815534ccb294ae659a7f03bf69cce
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which points to 'https://ttraff.me/wix?keyword=guide+becoming+an+entrepreneur+in+finland'. This indicates the document is designed to redirect users to malicious infrastructure. The document body also contains this URL, reinforcing its role in the attack. The presence of a PDF link farm heuristic further suggests a coordinated effort to distribute 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.me/wix?keyword=guide+becoming+an+entrepreneur+in+finland
    • https://cdn.shopify.com/s/files/1/0436/6653/8649/files/bejagukavilune.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1542/files/txdot_vehicle_transfer_notification_submitted_online.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8055/files/98770297812.pdf
    • https://cdn.shopify.com/s/files/1/0437/7578/7169/files/policy_on_geometric_design_of_highways_and_streets_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/42594898158.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd40c3fd57164031a5621a046f512770.pdf
    • https://static.usrfiles.com/ugd/bd1c09_a606e892cd504b8a82d794c2af56c326.pdf
    • https://static.usrfiles.com/ugd/a72fa8_d91d11a7c464496eaae83d71636425a9.pdf
    • https://static.usrfiles.com/ugd/ac72e0_3630b49d45d444c59ad37ab916737d84.pdf
    • https://static.usrfiles.com/ugd/3bbd68_c4e978fbe507464a9abcfedf230d80a9.pdf
    • https://static.usrfiles.com/ugd/0f1814_bdedbf1ad7f94168b834da7e46c050f1.pdf
    • https://static.usrfiles.com/ugd/0e2875_bf10331f1e7040e8bfef841e241985e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8c60a7e52924ac494b06a0c2cdab01e.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_off0000634e.bin
24d381a7a9e22b0f6e7ec6fd8188e6f3b0d8c025ee71142cf689c25e6b5c72d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634E 5468 bytes
font_01_sfnt_off000075d2.bin
2ad2184b3f08d9816d515ac01cefeba01e8f80407dd9971b5aa2420bb4675bff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D2 10020 bytes

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