Malicious PDF — malware analysis report

Static analysis result for SHA-256 5155af7188b8c0d4…

MALICIOUS

PDF

65.3 KB Created: 2020-09-01 00:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f94f881bac689d1ce7bb55c86beb7e3 SHA-1: f7cfec871972ea54a3f4df8d546b5e89f13bf481 SHA-256: 5155af7188b8c0d4c505a6d45675ff33a004df01f33d0c136d63f897e1c07e0c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=agriculture+biologique+en+algerie+pdf'. This indicates the document's primary purpose is to redirect the user to a malicious site. The PDF also contains a link farm heuristic, suggesting an attempt to manipulate search engine results or distribute links broadly. 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/wix?keyword=agriculture+biologique+en+algerie+pdf
    • https://cdn.shopify.com/s/files/1/0458/5917/6601/files/71485044651.pdf
    • https://cdn.shopify.com/s/files/1/0427/4556/1254/files/bloom_s_taxonomy_verbs_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/31541547058.pdf
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/zoxejerepirazoromazit.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/88543817874.pdf
    • https://cdn.shopify.com/s/files/1/0434/6344/2598/files/2213268849.pdf
    • https://cdn.shopify.com/s/files/1/0435/5139/1907/files/vegobe.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/solid_waste_management_project_in_marathi.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_5745b398e1c34e309554b6cfd8bdc3a6.pdf
    • https://static.usrfiles.com/ugd/eb4c03_2545d255e4ff43778344c8fbfb4a243b.pdf
    • https://static.usrfiles.com/ugd/87fdc7_3866fee6bfb246229956aa938f8e53de.pdf
    • https://cdn.shopify.com/s/files/1/0434/3860/4450/files/geometry_basics_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8988/files/52365539812.pdf
    • https://cdn.shopify.com/s/files/1/0429/5730/8063/files/dld_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/1740/2530/files/xeroraruxuxapupizot.pdf
    • https://cdn.shopify.com/s/files/1/0435/3540/1111/files/98311886773.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_off0000afa1.bin
5b1a1f72b59e8bcea41877e2ebafa177758162339ee6b3dd23509057c0a216ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA1 5400 bytes
font_01_sfnt_off0000c206.bin
de79929d9ccf94e478a8a061eba62183462395b5ececef4beb5f06627d9ddc81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC206 17700 bytes

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