PDF malware analysis — malicious · 9b778d0fb50393a7

MALICIOUS

PDF

46.5 KB Created: 2020-08-04 07:18:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c2aa17bf82b5adbe6682f2e4b3a3f02b SHA-1: 2b5bd541e82f47d748c1da5bb18ee5432a8b934b SHA-256: 9b778d0fb50393a779effa413a87e2aacf897ca2928fd47bc9daede512ac6950

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was flagged as malicious due to a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=the+beatles+guitar+pdf', suggesting a lure to a malicious site. The presence of numerous links, many hosted on cdn.shopify.com, indicates a link farm designed to distribute malicious content.

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=the+beatles+guitar+pdf
- http://files.jennifercosta.net/uploads/1/3/1/3/131382955/872959083622.pdf
- http://files.bepositivebeyou.com/uploads/1/3/0/7/130776619/baxutomaduler.pdf
- http://files.johanneslavertonrestaurant.com/uploads/1/3/1/4/131483098/7019817.pdf
- http://files.connectimacy.com/uploads/1/3/1/4/131438268/1ac6ef37.pdf
- https://cdn.shopify.com/s/files/1/0429/5848/7715/files/mowifijadeturefewa.pdf
- https://cdn.shopify.com/s/files/1/0431/7046/3912/files/abel_s_driving_school.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/20235358327.pdf
- https://cdn.shopify.com/s/files/1/0434/4106/2040/files/poxatolezexobunamux.pdf
- https://cdn.shopify.com/s/files/1/0432/4383/1464/files/dafixulaliredufatijatina.pdf
- https://cdn.shopify.com/s/files/1/0434/3503/2737/files/61910976222.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/82595467958.pdf
- https://cdn.shopify.com/s/files/1/0434/4971/2806/files/38811047931.pdf
- https://cdn.shopify.com/s/files/1/0440/5025/1941/files/nejetoliw.pdf
- https://cdn.shopify.com/s/files/1/0432/5657/8212/files/42201207261.pdf
- https://cdn.shopify.com/s/files/1/0435/4798/4027/files/ap_biology_test_prep_series_campbell.pdf
- https://cdn.shopify.com/s/files/1/0433/7205/2634/files/69778206486.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11286786524.pdf
- https://cdn.shopify.com/s/files/1/0436/2321/9363/files/iphone_dns_bypass.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_off00007783.bin` `316f23a453e413ec9ee5847d6d38a6b0314c6da8cd3f899d2e872dfca4962576`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7783	5392 bytes
`font_01_sfnt_off000089ca.bin` `0c2dc7bff576047f75a2cc0f77b829df4519c36a4d30af1cbd186bb250f3aa74`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89CA	10292 bytes

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