PDF malware analysis — malicious · a22049774d1a973e

MALICIOUS

PDF

73.3 KB Created: 2020-08-05 12:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5935495a2f5a1c002249256ee54e4511 SHA-1: d8073a6bbc8faf457c3db15637c2706107346759 SHA-256: a22049774d1a973ea3567cca2c6ae1cbee098ab85bd439ac6c5aa1f9086bba7c

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=calculus+textbook+10e+pdf'. This URL is likely part of a phishing or scam campaign, attempting to trick users into downloading further malicious content by masquerading as a legitimate resource. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious URL.

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=calculus+textbook+10e+pdf
- http://files.ndsca.us/uploads/1/3/0/9/130969048/a12a8c9a3d.pdf
- http://files.adamsheart.org/uploads/1/3/1/3/131379904/6596566.pdf
- http://files.rnrinc.org/uploads/1/3/1/6/131606392/kedovurof.pdf
- http://files.kanafanimarmi.com/uploads/1/3/1/3/131398197/lopikija-likiveliriweve-viresipokigot.pdf
- https://cdn.shopify.com/s/files/1/0432/9196/7652/files/27730742422.pdf
- https://cdn.shopify.com/s/files/1/0443/8884/3686/files/saint_rows_3_cheat_codes_ps3.pdf
- https://cdn.shopify.com/s/files/1/0430/3834/3322/files/tikikawibewur.pdf
- https://cdn.shopify.com/s/files/1/0430/9362/2935/files/degovevixev.pdf
- https://cdn.shopify.com/s/files/1/0434/7520/6294/files/xinebuvesupedetelevitelok.pdf
- https://cdn.shopify.com/s/files/1/0435/7704/9247/files/zomovapuluvelorevatat.pdf
- https://cdn.shopify.com/s/files/1/0428/7397/9043/files/siditolumasogibowepi.pdf
- https://cdn.shopify.com/s/files/1/0430/8434/9591/files/36391473200.pdf
- https://cdn.shopify.com/s/files/1/0431/6486/0575/files/2028131001.pdf
- https://cdn.shopify.com/s/files/1/0447/2619/0234/files/work_order_template.pdf
- https://cdn.shopify.com/s/files/1/0430/4846/8631/files/calendario_mundial_rusia_2020_chile.pdf
- https://cdn.shopify.com/s/files/1/0440/0162/4214/files/acls_provider_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/2117/2897/files/24342944832.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_off0000d40c.bin` `5c21e3234a239ed7c188df8a42b72da3644f5ea8af7cd5a9a9e38271598c2343`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD40C	5424 bytes
`font_01_sfnt_off0000e692.bin` `5de2ec2126d190edcba965ae114781468df95ad35e40e87ff6499fb4d18cd347`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE692	16628 bytes

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