Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cee849bba9f9cee…

MALICIOUS

PDF

45.3 KB Created: 2020-08-06 15:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba1f647d7cc46500f195bd62b9ccaebc SHA-1: 06009cdce2aa8afcee6217a2a95be6e118de1e25 SHA-256: 9cee849bba9f9cee4344b70d1d75cc1b1eeedf38d139bb3dd69b9bb66f4c8bb0
150 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to external PDF files, indicating a link farm or redirection strategy. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=que+es+la+basura+inorganica+pdf'. The document body, though partially corrupted, contains this URL, suggesting the primary intent is to redirect the user to malicious content. No scripts were extracted, but the PDF structure and URL analysis strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=que+es+la+basura+inorganica+pdf
    • http://files.qualityfolk.com/uploads/1/3/1/8/131871991/xokes-dovun.pdf
    • http://files.duesouthhome.com/uploads/1/3/1/0/131071043/cebe14.pdf
    • http://files.mayacamasfinefoods.com/uploads/1/3/2/6/132681891/vikos-gagafi.pdf
    • http://files.themanemonogramonline.com/uploads/1/3/1/4/131406811/e013494.pdf
    • https://cdn.shopify.com/s/files/1/0434/5328/4519/files/murray_snow_blower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66656561998.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/17742510279.pdf
    • https://cdn.shopify.com/s/files/1/0432/1312/7835/files/lijepujubazotuvolugulukor.pdf
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/atropina_anestesia.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/kokigulugarav.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/make_unique_c_11.pdf
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/nedubexebimasezew.pdf
    • https://cdn.shopify.com/s/files/1/0435/7187/1912/files/jenuwugoxideliwiju.pdf
    • https://cdn.shopify.com/s/files/1/0440/5572/4197/files/cp_snow_two_cultures.pdf
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/soxemanararukixuvebo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/96564232896.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062af.bin
45c488b47b9eb2f02de510e52137b3c2a79e69a17f97b991cb86894d2e00fce9
pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 5328 bytes
font_01_sfnt_off000074c7.bin
df6bed6a510ac95ff9f27d3bd921221f3f945913d45330321289b8a8df6a77cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x74C7 11028 bytes
font_02_sfnt_off0000987f.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x987F 4324 bytes