PDF malware analysis — malicious · 1c99e08862b410ea

MALICIOUS

PDF

44.4 KB Created: 2020-08-04 13:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 667f670b5597301f153a41d5b6ee20d5 SHA-1: f220e5f3df400eb15784dd7964180961f48ef75f SHA-256: 1c99e08862b410ea71ac9bfe4e1a1d2c90f76fba246b162cc5708008ef8d4455

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=pdf+file+reader+app+free+download'. The document body also contains this URL, presented as a free PDF reader app download. This indicates a social engineering lure to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm for SEO manipulation or to obscure the final malicious destination.

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=pdf+file+reader+app+free+download
- http://pujar.picturesqueartphotography.com/uploads/1/3/1/4/131437792/mifinolupo-fuwowu.pdf
- http://files.plainenglishfordoctors.com/uploads/1/3/0/8/130873708/bemadepavusukak.pdf
- http://files.ecimslilliesffp.com/uploads/1/3/1/6/131606480/ad834f422a.pdf
- https://cdn.shopify.com/s/files/1/0429/0645/2127/files/92450812625.pdf
- https://cdn.shopify.com/s/files/1/0427/9664/6556/files/jokuf.pdf
- https://cdn.shopify.com/s/files/1/0449/9534/6590/files/electric_bicycle_design.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83142526711.pdf
- https://cdn.shopify.com/s/files/1/0433/7218/3703/files/6149651238.pdf
- https://cdn.shopify.com/s/files/1/0435/1416/7450/files/85566219539.pdf
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/zinumawinoduseva.pdf
- https://cdn.shopify.com/s/files/1/0430/1894/4665/files/rapusibajuzofojuduv.pdf
- https://cdn.shopify.com/s/files/1/0430/7252/0353/files/9949847508.pdf
- https://cdn.shopify.com/s/files/1/0437/5642/1278/files/vovedomemedofa.pdf
- https://cdn.shopify.com/s/files/1/0430/3778/6265/files/35192590012.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0835/files/1501860613.pdf
- https://cdn.shopify.com/s/files/1/0427/7384/0038/files/7018352952.pdf
- https://cdn.shopify.com/s/files/1/0437/7464/0286/files/nuzozoxo.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_off00007067.bin` `5d015d81139e7722280efe953564d5ab90155a47d1f2a46f3bfe20e07763941b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7067	4948 bytes
`font_01_sfnt_off0000815e.bin` `9bedad70fb7de312cb6bfb9be0b20436c74664960386bbd2fb5da09fc03848a7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x815E	10228 bytes

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