PDF malware analysis — malicious · 50ffb3482478a363

MALICIOUS

PDF

42.0 KB Created: 2020-08-04 18:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8c0173fd79e3722f7717706f7302426d SHA-1: 4bc88b040b17be52a901d447d1b1bd0138d8dc9f SHA-256: 50ffb3482478a36325023570513921e2650acf16cc2f87465f2c38f570312d84

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files, indicating a link farm. One of the primary links redirects to a known malicious URL, ttraff.com, which is likely used for further malicious redirection. The document body, though partially corrupted, contains text related to 'Ejercicios aeróbicos pdf' and the authoring application, suggesting a lure to disguise the malicious intent.

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.com/pify?keyword=ejercicios+aer%25C3%25B3bicos+pdf
- http://files.brightgreenpossibilities.com/uploads/1/3/1/8/131856276/1865593.pdf
- http://files.dreamaginationrr.com/uploads/1/3/1/4/131437599/minitanowarurige.pdf
- http://files.depaulsfa.com/uploads/1/3/2/3/132302710/9151206.pdf
- http://files.avoncommunityheritagefestival.org/uploads/1/3/1/3/131380342/devatunawenos.pdf
- http://files.pfalzerwald.com/uploads/1/3/0/7/130775868/5215085.pdf
- https://cdn.shopify.com/s/files/1/0433/0491/1006/files/sifufokamofuwikewo.pdf
- https://cdn.shopify.com/s/files/1/0434/5528/3366/files/64503132199.pdf
- https://cdn.shopify.com/s/files/1/0433/5910/9279/files/60941767979.pdf
- https://cdn.shopify.com/s/files/1/0432/4638/7367/files/34763533199.pdf
- https://cdn.shopify.com/s/files/1/0429/7926/2623/files/pitcher_fl_studio.pdf
- https://cdn.shopify.com/s/files/1/0432/9180/3801/files/borislav_stankovic_necista_krv.pdf
- https://cdn.shopify.com/s/files/1/0432/8469/3160/files/tinuzasavedubizixe.pdf
- https://cdn.shopify.com/s/files/1/0430/8451/3440/files/periodic_table_of_elements_list.pdf
- https://cdn.shopify.com/s/files/1/0431/5483/3557/files/38161021345.pdf
- https://cdn.shopify.com/s/files/1/0431/4542/9160/files/92951978379.pdf
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/77849951588.pdf
- https://cdn.shopify.com/s/files/1/0431/5381/7762/files/rilumufomijax.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3468/files/favugamedenaku.pdf
- https://cdn.shopify.com/s/files/1/0427/6181/4172/files/wunemolopane.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_off00006392.bin` `209bc64f29632a068cd766ae5f0a2af22d1223e663e6e9c1caf9caf514642cdb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6392	5428 bytes
`font_01_sfnt_off000075d4.bin` `881febeba31990dfb1561ea3819c7594bc13b8434a076908d11b8a9031223b43`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75D4	10912 bytes

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