PDF malware analysis — malicious · 9f1aaf193ce554fd

MALICIOUS

PDF

43.8 KB Created: 2020-07-28 00:51:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c48c435101578fdfdaede10d3a0aeb9d SHA-1: 3bc2e7b65fe42735dc057cefbfdcd4b7d53694e8 SHA-256: 9f1aaf193ce554fdb21a6c7f3e7b629ded21bfe7bcb5e33d1dc3bfe0956a3faa

140 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to an 'invitation letter template for uk tourist visa', suggesting a lure. The presence of a callback phishing lure heuristic further supports the malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure via the embedded link.

Heuristics 4

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
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=invitation+letter+template+for+uk+tourist+visa
- http://files.goteamkate.com/uploads/1/3/0/8/130813054/jirunowiris-kerolak-gemekuta-todazunumozuwi.pdf
- http://files.hopeviewpto.com/uploads/1/3/2/7/132711966/sitivu_tuberivefozeb_fafev_womosaxit.pdf
- http://files.lauribenblattconsulting.com/uploads/1/3/1/8/131871992/8502216.pdf
- http://files.lauribenblattconsulting.com/uploads/1/3/1/8/131871992/8502216
- https://cdn.shopify.com/s/files/1/0432/4481/4500/files/morotilanisoni.pdf
- https://cdn.shopify.com/s/files/1/0433/8089/9989/files/sufogevu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/babasetaxoguvivowe.pdf
- https://cdn.shopify.com/s/files/1/0434/9086/9410/files/74753379686.pdf
- https://cdn.shopify.com/s/files/1/0436/9252/3675/files/laniwasanudezudagenepixo.pdf
- https://cdn.shopify.com/s/files/1/0431/5955/2155/files/vesonijerofulodosuleledow.pdf
- https://cdn.shopify.com/s/files/1/0432/7312/6052/files/jatagikuderebolubezixe.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/xizexakekefo.pdf
- https://cdn.shopify.com/s/files/1/0429/1470/9670/files/36841081348.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/nitomufaxasun.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_off00006dd1.bin` `28e4e8c71f6405e22cca1a36fe5f8c15563a71859d46d9832e925058e8d62d18`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DD1	4992 bytes
`font_01_sfnt_off00007eb3.bin` `98ec5515af90acde54cf987f3415a8cefa444e6dbae4ed60a7e6bab02e41769b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EB3	10368 bytes

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