PDF malware analysis — malicious · a3bd07cdb9a2e353

MALICIOUS

PDF

40.7 KB Created: 2020-08-07 03:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5854a6f1bc2b01f0665fb88ad6ebdde7 SHA-1: d0deafdc054f0e6e14737ecd1ea84b0bc2959b7a SHA-256: a3bd07cdb9a2e353636d536f786330f3b673c82dd87ceef6a69dcd45d02b371c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a phishing or scam attempt where the user is intended to click through to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=barreras+comerciales+pdf
- http://files.crompers.com/uploads/1/3/0/8/130874631/bf18bab.pdf
- http://tabujume.homeinspectoralbuquerque.com/uploads/1/3/1/4/131453494/8239776.pdf
- http://depipone.okrarestaurantgroup.com/uploads/1/3/1/4/131437363/bategi-piloxixu.pdf
- http://nekopo.btigauges.com/uploads/1/3/0/8/130814085/tovunewaku.pdf
- https://cdn.shopify.com/s/files/1/0431/6269/7894/files/29868378789.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/zitosajijima.pdf
- https://cdn.shopify.com/s/files/1/0438/8116/9051/files/data_structures_and_algorithms_in_swift_raywenderlich_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/4565/0586/files/ginotatoxili.pdf
- https://cdn.shopify.com/s/files/1/0429/2204/9695/files/zolesin.pdf
- https://cdn.shopify.com/s/files/1/0429/2493/3287/files/20022530720.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6152/files/fuxasawademibup.pdf
- https://cdn.shopify.com/s/files/1/0435/1049/7434/files/61826312764.pdf
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/safatabuwowikavimib.pdf
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/ron_larson_precalculus_8th_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/0688/6051/files/12385488370.pdf
- https://cdn.shopify.com/s/files/1/0440/7610/5893/files/contemporary_financial_management_12th_edition.pdf
- https://cdn.shopify.com/s/files/1/0435/3156/7256/files/45234235107.pdf
- https://cdn.shopify.com/s/files/1/0430/4168/5665/files/butchers_knife_dark_souls_2.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_off00005f0f.bin` `9fb8771b1e88e0b5c65366267d83498b52a45cff1b041a0eb669cd3ce7d7508c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F0F	5348 bytes
`font_01_sfnt_off00007128.bin` `ddc0a2036916ea41001eadc56bd252386f4da7b91f657b98ad92651815b93395`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7128	10828 bytes

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