PDF malware analysis — malicious · 98774aaf8a0df989

MALICIOUS

PDF

52.6 KB Created: 2020-08-30 17:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 00f0ee48e6177801591b679447ff2aed SHA-1: 5635496320f4331dc32b3b80982dac0338c75c17 SHA-256: 98774aaf8a0df98981301a150d1022ae5dc27413562d58395bcb9584660f6ccf

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm pattern, with numerous embedded links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to redirect the user to a 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.com/wix?keyword=moulin+a+eau+fonctionnement
- https://cdn.shopify.com/s/files/1/0431/6866/1670/files/judavup.pdf
- https://cdn.shopify.com/s/files/1/0429/5586/6263/files/tepuperipegezurupovuboba.pdf
- https://cdn.shopify.com/s/files/1/0436/4104/5145/files/31141829806.pdf
- https://cdn.shopify.com/s/files/1/0461/0765/6355/files/53168132830.pdf
- https://cdn.shopify.com/s/files/1/0431/0233/9232/files/98347701693.pdf
- https://static.usrfiles.com/ugd/05900a_4058465faafc4c7dab3a90c93f272be8.pdf
- https://static.usrfiles.com/ugd/b6edda_fa13704a747f4fa5b715baac250a6768.pdf
- https://static.usrfiles.com/ugd/b8c837_c4988329c7404ffa87ceea3411f0b592.pdf
- https://static.usrfiles.com/ugd/b8c837_e3a8db40e6624ff2b65cd536ca64170b.pdf
- https://static.usrfiles.com/ugd/8b2c09_d4086394b15b49e2ae2ee49c2eca66c1.pdf
- https://cdn.shopify.com/s/files/1/0430/5174/5442/files/cations_and_anions_list_with_symbols.pdf
- https://cdn.shopify.com/s/files/1/0430/7661/6346/files/77883220377.pdf
- https://cdn.shopify.com/s/files/1/0429/6641/7571/files/90038899456.pdf
- https://cdn.shopify.com/s/files/1/0431/7826/2689/files/78003464841.pdf
- https://cdn.shopify.com/s/files/1/0440/6919/1832/files/35865282566.pdf
- https://cdn.shopify.com/s/files/1/0440/5932/8662/files/wetajefatiz.pdf
- https://cdn.shopify.com/s/files/1/0432/3622/9278/files/mathematics_formula_for_ssc_cgl_exam.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_off00008b8a.bin` `edb753ef9bde54d8d5f2fa1287332efa91e9fc34c55a35fa2186589f50eedb78`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B8A	4756 bytes
`font_01_sfnt_off00009bb6.bin` `668bf0da6c84824150bc85f92fbd248e45421a7abed2b827971d8e3040e4cd5b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9BB6	12896 bytes

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