Malicious PDF — malware analysis report

Static analysis result for SHA-256 269bc674a07a3698…

MALICIOUS

PDF

44.0 KB Created: 2020-08-20 02:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b90665fd7e9834e4635825fba87a01f SHA-1: 82e4ec11ec00653d1b474a0ed2d9bee505ebd96e SHA-256: 269bc674a07a3698ed3ecf17d89d23468880fdd719c6bd4d847c94e467fff944
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains text that appears to be an Ofsted report, designed to trick the user into clicking a link. The primary link identified, 'https://ttraff.com/pify?keyword=alderman+white+school+ofsted+report', is flagged as a malicious redirector. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm tactics used to obscure malicious intent. No scripts were extracted, but the presence of a malicious redirector and the social engineering pretext strongly suggest a phishing or malware delivery attempt.

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=alderman+white+school+ofsted+report
    • http://files.carecounselinglv.com/uploads/1/3/1/3/131379054/larinugedi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1826/3448/files/42898706676.pdf
    • https://cdn.shopify.com/s/files/1/0434/6334/4280/files/imagenes_de_manualidades_de_halloween_para_nios.pdf
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/92244034752.pdf
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/34409950720.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/99239894962.pdf
    • https://cdn.shopify.com/s/files/1/0430/4902/5690/files/6430328950.pdf
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/44994837853.pdf
    • https://cdn.shopify.com/s/files/1/0433/8561/8583/files/xisoza.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/kosulalozi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/falololirenajali.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bluegrass_stockyards_lex_ky.pdf
    • https://cdn.shopify.com/s/files/1/0431/0410/8711/files/radamobivanobuz.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_off00006121.bin
3d7732319a6633c476c28e2802f212ae88e943a70560ace697cbacd002dc311e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6121 5476 bytes
font_01_sfnt_off0000739b.bin
f19e9bccff6f4c0b805eda31c8c15ef5afa522be8eb0465b5c9bcc9832de5a20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x739B 15400 bytes

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