PDF malware analysis — malicious · 52f0ba5ef16732af

MALICIOUS

PDF

38.4 KB Created: 2020-08-18 15:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a01bbd48e94ec73c8aae2b143c1cbb8a SHA-1: 2ab63544cdc9ec2ed2b5c1acc6ae61bf1a67cc0f SHA-256: 52f0ba5ef16732af9c32e23a9d570324bb4f730efb16a88ea9b1580e613446b9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=insulated+roof+sheets+for+conservatory'. This URL is embedded within the document body, suggesting a social engineering lure related to home improvement. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=insulated+roof+sheets+for+conservatory
- http://jumaro.createmoveconnecttoronto.com/uploads/1/3/2/3/132303338/nivegajanud.pdf
- http://files.redfieldfarms.com/uploads/1/3/0/7/130775304/1896216.pdf
- http://files.jeremycollins.org/uploads/1/3/0/8/130874129/bepabidubepino.pdf
- http://files.sarahfowlergraphics.com/uploads/1/3/1/4/131408502/6301938.pdf
- http://files.thetlacademy.shop/uploads/1/3/1/3/131384789/dupive-madelubupazape-dezarekinoza.pdf
- https://cdn.shopify.com/s/files/1/0435/3658/0759/files/xoxofi.pdf
- https://cdn.shopify.com/s/files/1/0428/8184/3356/files/resewu.pdf
- https://cdn.shopify.com/s/files/1/0433/7215/0947/files/75878836206.pdf
- https://cdn.shopify.com/s/files/1/0431/2304/8610/files/53117048050.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdf
- https://cdn.shopify.com/s/files/1/0431/4896/8090/files/48207261945.pdf
- https://cdn.shopify.com/s/files/1/0432/6499/9588/files/23182499971.pdf
- https://cdn.shopify.com/s/files/1/0428/5110/6972/files/42109374411.pdf
- https://cdn.shopify.com/s/files/1/0440/9065/4870/files/rikupik.pdf
- https://cdn.shopify.com/s/files/1/0431/5761/8850/files/45903579421.pdf
- https://cdn.shopify.com/s/files/1/0434/3899/7669/files/63824210508.pdf
- https://cdn.shopify.com/s/files/1/0431/4329/9232/files/92619203902.pdf
- https://cdn.shopify.com/s/files/1/0431/7901/6360/files/buzuxunatexuxapelut.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_off0000599f.bin` `45bdea48cdc98b07e2ccf695cb7a9ba3ea67c07640701e25f75e10b382053033`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x599F	5208 bytes
`font_01_sfnt_off00006b51.bin` `c38c74164c4a89e7005cf5fcc6db55d41379c9ddf6d9d8eae82b991de50b1402`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B51	9692 bytes

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