Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b82b7dbe1d7be27…

MALICIOUS

PDF

45.1 KB Created: 2020-08-15 00:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41f57446cd1fe991feccbc021cf2818c SHA-1: abe8dfb7d87ee91255906bbd0ef6be740348ce02 SHA-256: 1b82b7dbe1d7be27ffb58c7fa4cc4fd335464ec3b144b8c464da6d4aad755003
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wb?keyword=neutropenic%20diet%20pdf'. This indicates a social engineering attempt to trick users into visiting a malicious site. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify, suggesting an attempt to distribute malicious content or SEO spam. 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/wb?keyword=neutropenic%20diet%20pdf
    • http://gutuje.speysidefalconry.co.uk/uploads/1/3/0/7/130775853/7822458.pdf
    • http://files.angeljcalderon.com/uploads/1/3/1/4/131453574/09bf970c471a.pdf
    • http://files.strive-abq.com/uploads/1/3/0/9/130969153/25ce3f75f.pdf
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/donoxeri.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/xovulitikibavowarumekal.pdf
    • https://cdn.shopify.com/s/files/1/0428/7932/0223/files/aadhar_card_online_download_password.pdf
    • https://cdn.shopify.com/s/files/1/0433/5163/8175/files/2020_blank_printable_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/feloluriwodus.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/dijowajiwa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/college_budget_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/revexeged.pdf
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/wemizejalogikixino.pdf
    • https://cdn.shopify.com/s/files/1/0429/2155/8183/files/coventry_healthcare_of_florida.pdf
    • https://cdn.shopify.com/s/files/1/0436/9681/6282/files/arusha_declaration.pdf
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/accounting_and_finance_research_proposal.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/xebanudegaxezunikifex.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_off000074e7.bin
2d00b805f99a36d693a38d7566075727ac988b77591c1896ef231faae347c00a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74E7 4696 bytes
font_01_sfnt_off000084fc.bin
d43424f0c09784256d974ab802c47079862ebc73b70b8f08b7e8a85431b70d86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84FC 10192 bytes

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