PDF malware analysis — malicious · d8bedc1b794e5b2a

MALICIOUS

PDF

55.3 KB Created: 2020-07-23 07:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4de72ea492d12c8b53715ab4ec642487 SHA-1: 8f4f6c419277f1437d468a8d4b53570f193c72ca SHA-256: d8bedc1b794e5b2a49ffeb22338066732aaa18b4ae823632b423a807c3d4b0f4

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to appear as a syllabus for the UPSC civil service exam, but it redirects to a malicious URL (ttraff.cc). This suggests a phishing or social engineering attack aimed at directing users to potentially harmful content. The presence of numerous external links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking for malicious purposes.

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/wb?keyword=upsc%20civil%20service%20exam%20syllabus%202020%20pdf
- http://files.johnbunyanbaptist.org/uploads/1/3/1/1/131163512/c1761954f49.pdf
- http://files.rceassociates.net/uploads/1/3/1/0/131070867/9900860.pdf
- http://files.prosseracupuncture.com/uploads/1/3/1/4/131437531/ravilenu.pdf
- http://files.wheatongis.com/uploads/1/3/1/8/131871740/tiluwipuleruk_feginevivezis_kelovoteber_gelepigilo.pdf
- http://files.ferrisstudios2.com/uploads/1/3/1/4/131407709/f2de5f8f327b91.pdf
- https://cdn.shopify.com/s/files/1/0429/0471/5427/files/nidofusisowaw.pdf
- https://cdn.shopify.com/s/files/1/0437/0936/6427/files/3108955940.pdf
- https://cdn.shopify.com/s/files/1/0431/4329/9234/files/46225450897.pdf
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/51700698874.pdf
- https://ruxurogizipo.files.wordpress.com/2020/06/53115770712.pdf
- https://koxezapujuf.files.wordpress.com/2020/06/61971959141.pdf
- https://paxologon.files.wordpress.com/2020/06/49534611873.pdf
- https://rotoxepodib.files.wordpress.com/2020/06/46269305628.pdf
- https://cdn.shopify.com/s/files/1/0431/6430/3522/files/dawuxakibox.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/51232856024.pdf
- https://cdn.shopify.com/s/files/1/0432/8292/3676/files/vepuzasowewos.pdf
- https://cdn.shopify.com/s/files/1/0430/4021/1097/files/viwapibefuzikin.pdf
- https://cdn.shopify.com/s/files/1/0429/1729/8342/files/meden.pdf
- https://cdn.shopify.com/s/files/1/0434/5122/0120/files/57622935270.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/
- https://cdn.shopify.com/s/file

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00009391.bin` `7b0142050f7b1b0927125475716276b72ac8d1d94c413173fde5e39b9d904da0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9391	5520 bytes
`font_01_sfnt_off0000a65a.bin` `2710913566558a8b08751b3b2ee060b8d3adb5c7abac20ae82f7f5ac4c58e38d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA65A	13020 bytes

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