PDF malware analysis — malicious · 2ae0c57f908992eb

MALICIOUS

PDF

37.9 KB Created: 2020-07-31 02:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02a94741d85ebbb4fe9f195330e23ffe SHA-1: 598b60bc97d8f016ab37312c8e708db2e85efa47 SHA-256: 2ae0c57f908992eb26ca15dea12f59cae0d50aafea60de5bb709b813dabb7c68

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a large number of embedded links, many pointing to Shopify domains with numeric slugs, suggesting an attempt at SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a date, but no clear textual lure. The primary attack pattern involves directing users to malicious infrastructure via these links.

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.ru/wb?keyword=wagner%20wide%20shot%20power%20painter%206.6%20gph%20manual
- http://files.monteverdimusic.org/uploads/1/3/1/0/131071151/bovesudepixox.pdf
- http://files.supernaturalentertamitedproductions.org/uploads/1/3/1/4/131455883/visemomitowezij-fezaweku-xevut-kixivim.pdf
- http://files.ddssullivan.com/uploads/1/3/1/3/131383333/814cf0df42.pdf
- https://cdn.shopify.com/s/files/1/0434/5980/5350/files/12584757637.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdf
- https://cdn.shopify.com/s/files/1/0433/8342/3128/files/77667456917.pdf
- https://cdn.shopify.com/s/files/1/0429/8476/7641/files/47056416502.pdf
- https://cdn.shopify.com/s/files/1/0434/0065/9100/files/memozemafalo.pdf
- https://cdn.shopify.com/s/files/1/0433/7228/2008/files/lesajoroxokori.pdf
- https://cdn.shopify.com/s/files/1/0431/7482/2043/files/lefijatifagaposise.pdf
- https://cdn.shopify.com/s/files/1/0435/7079/0558/files/wedigupugujikepumuwi.pdf
- https://cdn.shopify.com/s/files/1/0430/4021/1105/files/62006583247.pdf
- https://cdn.shopify.com/s/files/1/0428/0179/1132/files/94150578652.pdf
- https://cdn.shopify.com/s/files/1/0435/1718/2104/files/gezujirimuleviji.pdf
- https://cdn.shopify.com/s/files/1/0432/8616/7702/files/tebejuzidazixajerotuli.pdf
- https://cdn.shopify.com/s/files/1/0429/1582/3772/files/kosafalexuwemo.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_off00005739.bin` `25de566a0708f5a444393fed4cea14304f401b11e9cd17640ccc93412083d3ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5739	5544 bytes
`font_01_sfnt_off00006a02.bin` `118a891f68db3fc10dd2d1cbb2b9c6d658a23da92663d63d6a7a7c9235b6e2f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A02	9384 bytes

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