PDF malware analysis — malicious · 87129828f68f0f35

MALICIOUS

PDF

45.6 KB Created: 2020-08-08 05:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9341cc5cf01fddb964c20708b2878b47 SHA-1: ecf2e0474437a7490e116b55a67b465df8d69605 SHA-256: 87129828f68f0f35855eaf4dbf999b2e542e5d09fbd09322603743960dc67d32

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=pl%25C3%25A1sticos+biodegrad%25C3%25A1veis+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, with the primary one being 'https://cdn.shopify.com/s/files/1/0436/4464/9630/files/80363202293.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to trick users into clicking malicious links.

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=pl%25C3%25A1sticos+biodegrad%25C3%25A1veis+pdf
- http://files.bensawyermusic.co.uk/uploads/1/3/2/7/132740218/kelupotamevivok.pdf
- http://files.sherieunfiltered.com/uploads/1/3/2/8/132815961/a59b4b501cc8.pdf
- http://files.kcactf5.org/uploads/1/3/1/4/131437941/0c2f89a7b246f.pdf
- http://files.drvinge.com/uploads/1/3/2/6/132695195/gajamodap-vilanaxifeja-dipine-dorarivufokeri.pdf
- https://cdn.shopify.com/s/files/1/0436/4464/9630/files/80363202293.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.pdf
- https://cdn.shopify.com/s/files/1/0432/4157/0466/files/24518523225.pdf
- https://cdn.shopify.com/s/files/1/0429/1769/1559/files/automated_testing_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0431/8114/6280/files/boluvurudibabekupugak.pdf
- https://cdn.shopify.com/s/files/1/0429/9695/7343/files/44900531894.pdf
- https://cdn.shopify.com/s/files/1/0428/9868/6119/files/carrier_air_conditioner_brochure.pdf
- https://cdn.shopify.com/s/files/1/0441/0903/7720/files/51715646103.pdf
- https://cdn.shopify.com/s/files/1/0429/5622/6716/files/majizetonepexajaba.pdf
- https://cdn.shopify.com/s/files/1/0433/5622/5688/files/lotatunepapewesikok.pdf
- https://cdn.shopify.com/s/files/1/0437/1818/1016/files/64978671490.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.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_off00006eb4.bin` `f8f4a73820f4dbe7f615ac36827ea5d02e906c0d2cc5e5187a02910bb5ac804b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EB4	5760 bytes
`font_01_sfnt_off000081d4.bin` `241ac4e546e7f578f37e0667cfc4c44a008337f6cf1c3ad7c5d92c03038f3aff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81D4	12504 bytes

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