PDF malware analysis — malicious · 81a908e50db0fbcf

MALICIOUS

PDF

51.8 KB Created: 2020-08-14 12:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 53f81aa38d07e6bc1e7eff0ef57ea80c SHA-1: 787e45efd6bb4b600434b57b30ba913cab48868a SHA-256: 81a908e50db0fbcf3dce434a62db3960db214d4d8cbc5b27b6d302ac5e1c61ee

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, likely for SEO manipulation or to distribute malware. The document body text, though partially corrupted, contains keywords related to administrative procedures, suggesting a lure. No scripts were extracted, but the primary attack vector appears to be directing users to malicious external sites.

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/wb?keyword=demarche%20administrative%20senegal%20pdf
- http://gamiluta.mcrudin.com/uploads/1/3/2/3/132303382/davagixit_tejixuv_kilabodogodaluk.pdf
- http://files.roxbury5k.com/uploads/1/3/0/7/130775679/fexusutelisixo.pdf
- http://files.mizpah36.org/uploads/1/3/1/3/131379045/6624586.pdf
- http://files.homeinspectoralbuquerque.com/uploads/1/3/0/7/130775982/83d0f1021b36.pdf
- https://cdn.shopify.com/s/files/1/0437/4809/8209/files/12827374051.pdf
- https://cdn.shopify.com/s/files/1/0431/7193/8461/files/lafogeredofanuliseb.pdf
- https://cdn.shopify.com/s/files/1/0428/5097/5910/files/dofesunawu.pdf
- https://cdn.shopify.com/s/files/1/0437/2417/7576/files/relagurizafupekiwiz.pdf
- https://cdn.shopify.com/s/files/1/0434/1530/6405/files/vatanozip.pdf
- https://cdn.shopify.com/s/files/1/0428/0510/0711/files/17577559903.pdf
- https://cdn.shopify.com/s/files/1/0429/5753/7439/files/xodunizuluvikonexomo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
- https://cdn.shopify.com/s/files/1/0430/8421/8532/files/13616459147.pdf
- https://cdn.shopify.com/s/files/1/0440/2964/0854/files/time_zones_list.pdf
- https://cdn.shopify.com/s/files/1/0434/8605/2518/files/beniseliv.pdf
- https://cdn.shopify.com/s/files/1/0429/2742/3654/files/27078352491.pdf
- https://cdn.shopify.com/s/files/1/0437/1775/5034/files/34962629333.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_off0000872a.bin` `eb364d7affc0584ba3b1425e43d22732f62a1905be1afa2c655b33610b097394`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x872A	5628 bytes
`font_01_sfnt_off00009a38.bin` `e4872dac315a4fbd8572748b6e65f6d52d7bd999e5983dcebcf9498df3322441`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A38	12320 bytes

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