PDF malware analysis — malicious · fbfc75ff6258b857

MALICIOUS

PDF

44.7 KB Created: 2020-08-24 10:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e8079ad0ddfeec7ae192f756791e96a SHA-1: cf1bd3a886736bade9cce4b82de63b6565a7bbbb SHA-256: fbfc75ff6258b85702757d87a8034f4d7fbed0dd2d9d9c7e20337cc10e1b7ca4

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits malicious behavior through its embedded links. A critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=arcon+bold+font+free'. Additionally, the file contains a link farm of 14 PDF documents, with the first link pointing to 'https://cdn.shopify.com/s/files/1/0433/7709/8902/files/descriptive_writing_topics.pdf'. This suggests a social engineering or SEO poisoning attack designed to lure users to malicious infrastructure.

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=arcon+bold+font+free
- http://files.rivalgates.com/uploads/1/3/1/4/131455475/87388f1ae20aca.pdf
- https://cdn.shopify.com/s/files/1/0433/7709/8902/files/descriptive_writing_topics.pdf
- https://cdn.shopify.com/s/files/1/0430/5754/5365/files/pazopubejisudogevijew.pdf
- https://cdn.shopify.com/s/files/1/0431/0292/9047/files/jowekeboxexufo.pdf
- https://cdn.shopify.com/s/files/1/0429/7208/6435/files/surrealismo_literario.pdf
- https://cdn.shopify.com/s/files/1/0429/3178/1791/files/64451958127.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/tuved.pdf
- https://cdn.shopify.com/s/files/1/0435/4283/9455/files/liftmaster_professional_formula_1_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/7623/1063/files/kirubareredevo.pdf
- https://cdn.shopify.com/s/files/1/0428/3983/4791/files/michelangelo_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0428/4357/0343/files/43524877441.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/62229260666.pdf
- https://cdn.shopify.com/s/files/1/0451/6010/4090/files/student_attendance_management_system_android_source_code.pdf
- https://cdn.shopify.com/s/files/1/0440/4979/3174/files/music_theory_for_computer_musicians.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005d62.bin` `c2be80a6618581abf728d5658648508c1be777aedb29fc8adb37e33096c1dded`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D62	4756 bytes
`font_01_sfnt_off00006d95.bin` `6b3c7c069e5e38c5561532f8c7accb3e594da751607a3344dea8a8ff41f92d7b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D95	10308 bytes
`font_02_sfnt_off00009124.bin` `fb27248ec02d804caa0ce6a8dd06a8f0f211157336bc50f6c382585ff5fe3da3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9124	16084 bytes

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