PDF malware analysis — malicious · 7c34bf0e1ae72c03

MALICIOUS

PDF

41.6 KB Created: 2020-08-09 12:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b5d14f1680fba7223fa5557661acc6a9 SHA-1: 2da8d26426958c929a6dbb85311d54746c449e34 SHA-256: 7c34bf0e1ae72c03536e4c5ec6b4b248f4c118dcb889d1b8df9e5e7bf83f5b0e

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body and embedded links suggest a lure related to 'apics cscp study material 2020 pdf', likely intended to trick users into downloading further malicious content or visiting phishing sites. The ML classifier also strongly indicated maliciousness.

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=apics+cscp+study+material+2020+pdf
- http://xoridimak.ddxdesign.com/uploads/1/3/1/8/131857920/resuvekigudidu-suzezofasamek-lagimej.pdf
- http://files.joedyton.com/uploads/1/3/0/7/130739593/vavoxikubixolipubego.pdf
- http://files.seminolecemeteryassociation.com/uploads/1/3/1/1/131164402/dosoniketuxeb-goliwobukuxosas-xegak.pdf
- http://files.thedollhousellc.com/uploads/1/3/2/8/132816042/85ceb18707.pdf
- https://cdn.shopify.com/s/files/1/0435/5696/2465/files/moving_average_numpy.pdf
- https://cdn.shopify.com/s/files/1/0432/4337/2699/files/trivium_ember_to_inferno.pdf
- https://cdn.shopify.com/s/files/1/0427/6515/6508/files/serazazidiribi.pdf
- https://cdn.shopify.com/s/files/1/0432/5651/2676/files/luzil.pdf
- https://cdn.shopify.com/s/files/1/0428/8518/5702/files/xotelilofegazutigaramijaf.pdf
- https://cdn.shopify.com/s/files/1/0438/6252/4069/files/55243983671.pdf
- https://cdn.shopify.com/s/files/1/0431/4886/9786/files/50370689146.pdf
- https://cdn.shopify.com/s/files/1/0431/1387/3569/files/23583818308.pdf
- https://cdn.shopify.com/s/files/1/0433/3250/1656/files/cumulative_distribution_function_for_discrete_random_variables.pdf
- https://cdn.shopify.com/s/files/1/0429/6966/1589/files/96957127524.pdf
- https://cdn.shopify.com/s/files/1/0431/5545/6149/files/rust_server_hosting_free.pdf
- https://cdn.shopify.com/s/files/1/0432/2597/2904/files/zebaluralitekopunugezita.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.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_off00006403.bin` `bf2cdcec517d3205680c51031c2865633bb400ab5e78e50365c69da0225fcc65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6403	5668 bytes
`font_01_sfnt_off0000773b.bin` `19d86761126bf58c9adcc1f873459e59e141c49420a3209a39b18931fc822da9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x773B	10148 bytes

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