PDF malware analysis — malicious · 3697d477248f0df4

MALICIOUS

PDF

41.6 KB Created: 2020-08-25 00:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 863a1d595f94cf12c27253e8e08acb1f SHA-1: 1f131fa2019b5baa82d8082251d514caac80886a SHA-256: 3697d477248f0df41a75cbb1519a45c789c6f1db18f4c9f1f6ec2dad80ebbdab

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=annoying+alarm+clock+sound'. It also contains a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, one of which is 'https://cdn.shopify.com/s/files/1/0439/6200/7710/files/cbse_improvement_exam_marksheet_2019.pdf'. The document body contains text related to an alarm clock sound and the PDF creation tool, likely as part of a lure.

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=annoying+alarm+clock+sound
- http://files.nameastarnasa.com/uploads/1/3/0/7/130740049/27ed9075e88.pdf
- http://fenusopek.mbwc.org/uploads/1/3/2/6/132695569/7187709.pdf
- http://files.fivetimesfamous.com/uploads/1/3/0/8/130813931/1bd6881d80.pdf
- https://cdn.shopify.com/s/files/1/0439/6200/7710/files/cbse_improvement_exam_marksheet_2019.pdf
- https://cdn.shopify.com/s/files/1/0459/8824/9757/files/clothes_washing_symbols_guide.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/vosakup.pdf
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/batemans_bay_cinema_movie_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/24541771731.pdf
- https://cdn.shopify.com/s/files/1/0431/1960/7962/files/12722204982.pdf
- https://cdn.shopify.com/s/files/1/0430/3532/8663/files/88390814976.pdf
- https://cdn.shopify.com/s/files/1/0427/4136/6951/files/63086378712.pdf
- https://cdn.shopify.com/s/files/1/0427/9717/0847/files/informacion_de_plantas_alimenticias_wikipedia.pdf
- https://cdn.shopify.com/s/files/1/0434/6200/0806/files/salen.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.pdf
- https://cdn.shopify.com/s/files/1/0429/1428/3686/files/vimisewa.pdf
- https://cdn.shopify.com/s/files/1/0428/8564/4447/files/waximoganelipejufefumi.pdf
- https://cdn.shopify.com/s/files/1/0432/8993/6025/files/datawagunaka.pdf
- https://cdn.shopify.com/s/files/1/0428/9980/0217/files/wibisajepovuj.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_off000064c1.bin` `97aee2f84fa9bddf3231a3e9cce0972839ca5e6b88f67001a42416d44c504509`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C1	5416 bytes
`font_01_sfnt_off00007716.bin` `2a790e3e00a8840529ca268f7d604edc9defc433b1ce6ef549b881a35fcf621b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7716	10064 bytes

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