PDF malware analysis — malicious · ed1aaa5d99e4b958

MALICIOUS

PDF

35.2 KB Created: 2020-08-14 22:59:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c21fc3b84da36545e7fabbe272bb24df SHA-1: 89044cdaef6debacca72e8b85fff0e1812c31f02 SHA-256: ed1aaa5d99e4b9589c3fa08b4f0ef8261e1ed14373a6e2342b4fa1129f99764a

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or SEO poisoning technique used to disguise malicious intent. The ML classifier also strongly flagged this PDF as malicious. The presence of the malicious redirector URL indicates the primary attack vector is likely to lead the user to a compromised or malicious site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=weber%20concertino%20clarinet%20sheet%20music%20pdf
- http://files.zeenasopinion.com/uploads/1/3/0/8/130815228/xuwiged.pdf
- http://files.coolgeekzatl.com/uploads/1/3/0/9/130969920/043dce.pdf
- https://cdn.shopify.com/s/files/1/0429/3676/2527/files/generating_equivalent_expressions_lesson_10-_3_answers.pdf
- https://cdn.shopify.com/s/files/1/0431/8344/0030/files/kuramojabajimop.pdf
- https://cdn.shopify.com/s/files/1/0435/0686/0187/files/37908821750.pdf
- https://cdn.shopify.com/s/files/1/0432/2839/7728/files/gifuwotiwawe.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2557/files/88454269517.pdf
- https://cdn.shopify.com/s/files/1/0431/1410/2950/files/35505212598.pdf
- https://cdn.shopify.com/s/files/1/0446/6376/7203/files/motor_vehicle_repair_manuals.pdf
- https://cdn.shopify.com/s/files/1/0439/1947/4856/files/toefl_practice_test_speaking.pdf
- https://cdn.shopify.com/s/files/1/0435/0646/6975/files/aeschynomene_americana.pdf
- https://cdn.shopify.com/s/files/1/0435/1043/1896/files/12442353095.pdf
- https://cdn.shopify.com/s/files/1/0433/6487/6444/files/fosakigu.pdf
- https://cdn.shopify.com/s/files/1/0436/0231/3373/files/kixeruzimagimekif.pdf
- https://cdn.shopify.com/s/files/1/0432/8436/5468/files/motuli.pdf
- https://cdn.shopify.com/s/files/1/0435/7256/0033/files/ender_air_bottle.pdf
- https://cdn.shopify.com/s/files/1/0433/7870/4549/files/barriers_to_communication_in_an_organisation.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_off00004a74.bin` `80ba18b731f8150cd541a0446bbe62c098e2bc7a0c7840cccb151dd263158f92`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A74	5548 bytes
`font_01_sfnt_off00005d23.bin` `9ec3a43d0a27f3189a60d1e40814da3e8c7a2375a28ae96e6caec359c8434d21`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D23	10076 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.