Malicious PDF — malware analysis report

Static analysis result for SHA-256 c825d6e9e848a0a5…

MALICIOUS

PDF

41.3 KB Created: 2020-09-16 05:25:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 026a50f403ca2c536040fb01f97c20d7 SHA-1: 1f099e216b848f3241116314bc97ab1ae01a6d2e SHA-256: c825d6e9e848a0a5e82da62d33889785dd1acfee3dea77c75c09ef934c323703
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to external PDF files, suggesting a link farm or redirection strategy. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=50th+birthday+decorations+for+her'. The document body, though partially corrupted, contains text related to birthday decorations, likely a lure. No scripts were extracted from this sample.

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=50th+birthday+decorations+for+her
    • http://bewili.angelicaarvylas.com/uploads/1/3/1/4/131409090/fodiremokuto.pdf
    • http://files.strategy3inspired.com/uploads/1/3/1/4/131483592/4081412.pdf
    • http://files.letteringchallenges.com/uploads/1/3/1/4/131437987/jirurumu.pdf
    • http://lumat.martinebailey.com/uploads/1/3/1/4/131408899/4320244.pdf
    • http://fesubigan.majujayamachinery.com/uploads/1/3/1/3/131380001/nirej.pdf
    • https://cdn.shopify.com/s/files/1/0434/1743/6327/files/pimesadan.pdf
    • https://cdn.shopify.com/s/files/1/0428/8308/8547/files/accident_reports_today_ocala_fl.pdf
    • https://cdn.shopify.com/s/files/1/0439/1524/7771/files/aprendizaje_basado_en_problemas_en_medicina.pdf
    • https://static.usrfiles.com/ugd/868b90_ff08be8569be4093801b5a8ae0b7f0c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_af261f6360c346d684d920b93d5a5342.pdf
    • https://static.usrfiles.com/ugd/5be868_ba2f3f0491ab4554b15eb59bfec6a6bf.pdf
    • https://static.usrfiles.com/ugd/bba345_d99ab8a5364f47ad90af86b420ba436a.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_off0000638a.bin
7adbbef153283beab4ef652d2435dc6b3035927cc666abe70b82112e0769b8b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 5492 bytes
font_01_sfnt_off00007631.bin
2ea8aaeba6788b6bb70df2c27f838ee61a92f8a293b81480b9b2280ff1fe93a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7631 10008 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.