PDF malware analysis — malicious · d53546ede9458ede

MALICIOUS

PDF

41.9 KB Created: 2020-08-14 14:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7f5c3bae2c716642d657759f0f26f793 SHA-1: 7c98996f8d6510c89282caee2834bd834e086daa SHA-256: d53546ede9458eded1f2245d0cb60a5aee8727230340f1c8b0a24397872311a0

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious link identified is https://ttraff.ru/pify?keyword=best+formal+dress+for+job+interview, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to job interviews and the tool used to generate the PDF, suggesting a lure to disguise the malicious links. 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.ru/pify?keyword=best+formal+dress+for+job+interview
- http://tebor.modeesthetics.com/uploads/1/3/0/7/130776791/fimajavafodenike.pdf
- http://vawipew.children-families.org/uploads/1/3/1/4/131454165/78f71d5.pdf
- http://files.donerightpoolheating.com/uploads/1/3/1/4/131454190/6464814.pdf
- http://files.milenamcrae.com/uploads/1/3/1/0/131071043/3941724.pdf
- https://cdn.shopify.com/s/files/1/0434/6331/1512/files/borozobisurota.pdf
- https://cdn.shopify.com/s/files/1/0437/8984/4637/files/calculus_3_textbook.pdf
- https://cdn.shopify.com/s/files/1/0433/9938/1157/files/rifitifemug.pdf
- https://cdn.shopify.com/s/files/1/0434/3041/2454/files/gofibunisegikamogowevimi.pdf
- https://cdn.shopify.com/s/files/1/0435/7799/9519/files/app_scanner_free.pdf
- https://cdn.shopify.com/s/files/1/0434/6360/6437/files/95185315466.pdf
- https://cdn.shopify.com/s/files/1/0429/6717/1223/files/28978440265.pdf
- https://cdn.shopify.com/s/files/1/0435/5224/3861/files/reading_comprehension_high_school.pdf
- https://cdn.shopify.com/s/files/1/0436/1230/7618/files/cracker_barrel_menu.pdf
- https://cdn.shopify.com/s/files/1/0434/4610/8312/files/75386999411.pdf
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/9683736839.pdf
- https://cdn.shopify.com/s/files/1/0437/4183/9511/files/brightsign_xt244.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.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_off0000645a.bin` `0c867630e9e39a6fe9087ccc8db42a43a0f8c8999ffaf38718a55bfc9e29b40c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x645A	5468 bytes
`font_01_sfnt_off000076ee.bin` `48f0100319510483fb325075ed06bb727b0ff3e458c3ad0add9db2dac40c4668`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76EE	10352 bytes

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