PDF malware analysis — malicious · e718f8a244385f5c

MALICIOUS

PDF

54.4 KB Created: 2020-08-30 02:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 98ad644d814b919fc0b282346432b812 SHA-1: 3785c59c131e24fbd698d36c1003bbfc2a4ef95b SHA-256: e718f8a244385f5cfec79154a664c5538d669cf5395cdcefde8c651e1f93f99e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded document body text, though heavily corrupted, contains fragments of URLs that are also present in the extracted URL list. The primary malicious URL, https://ttraff.cc/wix?keyword=free++crystal+report+runtime+64+bit, is likely the intended destination for the user, potentially leading to a phishing or malware download 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.cc/wix?keyword=free++crystal+report+runtime+64+bit
- https://cdn.shopify.com/s/files/1/0432/3383/7219/files/complete_book_chakra_healing.pdf
- https://cdn.shopify.com/s/files/1/0429/8070/4405/files/cab_driver_game.pdf
- https://cdn.shopify.com/s/files/1/0428/3128/2335/files/39131852390.pdf
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/bsp_thread_standard.pdf
- https://cdn.shopify.com/s/files/1/0434/6734/1974/files/vipagolitaja.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40948382406.pdf
- https://static.usrfiles.com/ugd/de60da_5445e9fdb2bd416e8cb77bb0aa9b40b4.pdf
- https://static.usrfiles.com/ugd/3e87bf_47be7861bffd4a798d5cf2b383af48f6.pdf
- https://static.usrfiles.com/ugd/158fb9_206944d8e21f496bb944f178d72ceeab.pdf
- https://static.usrfiles.com/ugd/7f16bd_d0bd21767e6d48c1980efdbb05e4d3a3.pdf
- https://static.usrfiles.com/ugd/69695d_9a3e1b14fdf7467aa730cb102f9b3dda.pdf
- https://static.usrfiles.com/ugd/b8c837_0792b88f3e704728b07e4b0b60683034.pdf
- https://static.usrfiles.com/ugd/b8c837_a55c3657c1c346ceb08a8fe36e0100b7.pdf
- https://static.usrfiles.com/ugd/f55bec_f21b9e9e3af7476597d4a47c676bf20f.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000076f2.bin` `526c5a2175551476bef9e67e23fc16d118bda5f5d89964818a68e3a853678add`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76F2	6476 bytes
`font_01_sfnt_off000086c8.bin` `2d1a69eae461dfe05492700cb91515373f5f223149181e690dd67b49997ad56d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86C8	4136 bytes
`font_02_sfnt_off0000957a.bin` `2fbe3c071b7fc3a8f03299760cc2ad999510b02ae36941a93b7784e68a314112`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x957A	5516 bytes
`font_03_sfnt_off0000a832.bin` `e9521b91cb22e36dd1d7ce6bfcbc318ce923c19ae0df89bf829366ed0afe563c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA832	10508 bytes

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