PDF malware analysis — malicious · d5b703eb618a262f

MALICIOUS

PDF

74.6 KB Created: 2020-08-07 09:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6996a22967a7dbf741c7d5f8b2797c33 SHA-1: 7d0ea5d71ecf152b9b7b2681887b928d2ee16b96 SHA-256: d5b703eb618a262fbe74618bedf495adec5ebccafd8855277603886505589958

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=caracteristicas+psicologicas+del+adulto+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the lure. The primary intent appears to be directing 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.ru/pify?keyword=caracteristicas+psicologicas+del+adulto+pdf
- http://files.northhobby.us/uploads/1/3/0/7/130776493/160ed61e.pdf
- http://files.neighborhoodct.com/uploads/1/3/1/3/131384468/1474663.pdf
- http://files.gazetteevents.com/uploads/1/3/1/0/131071253/wasujajamuxi-tijogaro.pdf
- http://files.northhobby.us/uploads/1/3/0/7/
- https://cdn.shopify.com/s/files/1/0429/8879/8111/files/36244717666.pdf
- https://cdn.shopify.com/s/files/1/0433/0160/1444/files/turajarufosizekerogizoni.pdf
- https://cdn.shopify.com/s/files/1/0434/1497/8718/files/tepuxasixuz.pdf
- https://cdn.shopify.com/s/files/1/0428/5172/9574/files/53995763621.pdf
- https://cdn.shopify.com/s/files/1/0428/7404/4579/files/49437035092.pdf
- https://cdn.shopify.com/s/files/1/0432/0067/6003/files/15287602082.pdf
- https://cdn.shopify.com/s/files/1/0437/3974/2359/files/rimusu.pdf
- https://cdn.shopify.com/s/files/1/0435/7108/5475/files/brew_list_installed.pdf
- https://cdn.shopify.com/s/files/1/0434/1887/8104/files/19640574479.pdf
- https://cdn.shopify.com/s/files/1/0431/0486/2375/files/puvepomepesemugat.pdf
- https://cdn.shopify.com/s/files/1/0431/7993/3862/files/15547400573.pdf
- https://cdn.shopify.com/s/files/1/0429/9679/3503/files/29216009517.pdf
- https://cdn.shopify.com/s/files/1/0432/9403/2025/files/tikalijetaviweletimazo.pdf
- https://cdn.shopify.com/s/files/1/0431/1279/2221/files/fraction_coloring_worksheets_3rd_grade.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_off0000e658.bin` `e712e909106543e501ea3b5eaef62d7c5a157c6ffc937d1135be1b7b66fd2678`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE658	5228 bytes
`font_01_sfnt_off0000f82a.bin` `047cebc687f4c9c864552403f4246ec2c6ac59df354eebcb532802c2896927e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF82A	11300 bytes

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