PDF malware analysis — malicious · e4e9eab8eed483bc

MALICIOUS

PDF

68.1 KB Created: 2020-08-17 14:24:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3ebf49559f642e8c1f45af492ebd333e SHA-1: 0bb572648cf59e59b7997acc342378ba2f609646 SHA-256: e4e9eab8eed483bc4b2b235de46c1da666a5d24a47fa6e37dca206c70ab951bf

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of embedded links, with the primary malicious URL being ttraff.cc. The document body itself is heavily obfuscated but contains the same malicious URL and a benign-looking PDF filename, suggesting a lure to a malicious site.

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.cc/pify?keyword=anthocyanin+formation+in+plants
- http://files.mail.stthomaskids.com/uploads/1/3/1/4/131408103/9148988.pdf
- http://files.stseachnalls.ie/uploads/1/3/0/7/130739315/1250517.pdf
- http://files.shopvarietyislife.com/uploads/1/3/1/4/131409861/gikeriximebegexetot.pdf
- http://files.tarringtonswimteam.org/uploads/1/3/0/8/130813357/210148.pdf
- https://cdn.shopify.com/s/files/1/0451/1399/9512/files/possessive_nouns_worksheet_for_grade_2.pdf
- https://cdn.shopify.com/s/files/1/0430/8526/7097/files/ninoretinomujunivedoti.pdf
- https://cdn.shopify.com/s/files/1/0432/1122/7300/files/70876110990.pdf
- https://cdn.shopify.com/s/files/1/0429/7064/4631/files/55155708036.pdf
- https://cdn.shopify.com/s/files/1/0427/9821/9420/files/dovosasegot.pdf
- https://cdn.shopify.com/s/files/1/0432/8318/5832/files/15303705382.pdf
- https://cdn.shopify.com/s/files/1/0437/3754/6917/files/80848194877.pdf
- https://cdn.shopify.com/s/files/1/0434/0695/0550/files/ceh_v9_certified_ethical_hacker_practice_tests.pdf
- https://cdn.shopify.com/s/files/1/0428/7745/2454/files/binary_vector_system_for_plant_transformation.pdf
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/verubimetujubu.pdf
- https://cdn.shopify.com/s/files/1/0429/4311/9516/files/fedixenawupugeb.pdf
- https://cdn.shopify.com/s/files/1/0432/4088/2340/files/abdominal_tuberculosis.pdf
- https://cdn.shopify.com/s/files/1/0431/3110/9540/files/certificate_format_for_project.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c058.bin` `a153c73896ac58b0f2dedb1dede0268519709e0c799e23b840ca364253cd465f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC058	5348 bytes
`font_01_sfnt_off0000d25f.bin` `d8d315028ce9d5c080751fd377a6288e8f3130c2133c5e8429fae941c7d175e9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD25F	15856 bytes

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