PDF malware analysis — malicious · 85291eba1cc6875b

MALICIOUS

PDF

41.9 KB Created: 2020-08-30 08:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 69a72411cf37a5dea3077bb080506490 SHA-1: ad4b236886f0492478f5ab22802adbe1a7ed0166 SHA-256: 85291eba1cc6875b24f8e54f4dd3e2c04643984f6dfff0fbe4b8f70cf1b3f9ec

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'auto detailing checklist pdf' and the malicious URL. This suggests the document is designed to trick users into clicking the link, leading them to malicious infrastructure.

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.link/wix?keyword=auto+detailing+checklist+pdf
- https://static.usrfiles.com/ugd/dc98cc_fc86efa084414f2eb7d2e144876bd132.pdf
- https://static.usrfiles.com/ugd/b8c837_4ccd83f2fa594407a9341da15e971101.pdf
- https://static.usrfiles.com/ugd/23e9be_344f388a2582493397fd2572e654722f.pdf
- https://static.usrfiles.com/ugd/b8c837_ddf5f9b00c734c4c8da90ac4924426b2.pdf
- https://static.usrfiles.com/ugd/b8c837_3c3876efe6f341cd8e81be519e492161.pdf
- https://static.usrfiles.com/ugd/b8c837_5115728ce64343c68e1683551c93fbcf.pdf
- https://static.usrfiles.com/ugd/b8c837_5e363015ff504085a3de576f5df0ec33.pdf
- https://static.usrfiles.com/ugd/b8c837_efd06bd06baf434aa44f185218b28860.pdf
- https://static.usrfiles.com/ugd/b8c837_00b0f315ce69400b92392478d17f8673.pdf
- https://static.usrfiles.com/ugd/b8c837_1e95fec18a414b6698e1d9e79c1d23d1.pdf
- https://static.usrfiles.com/ugd/b3bc21_733d855c3a8d409aa355ca2fce698ed5.pdf
- https://static.usrfiles.com/ugd/3b47cb_24300f5ccf3446f1a66dccbb7af1c45c.pdf
- https://static.usrfiles.com/ugd/45fd81_9cdca97eb5c6461b80e3e1c92cc0bb9a.pdf
- https://static.usrfiles.com/ugd/0047a4_ea9d12f8a95d4ce082871d8428c8f277.pdf
- https://static.usrfiles.com/ugd/b8c837_90a66a929057475c9fd64cac94807356.pdf
- https://static.usrfiles.com/ugd/b8c837_22f20fd1762a4057ae04fd19e1d84c00.pdf
- https://static.usrfiles.com/ugd/7598fa_fa26555215e448b08c68b59756b06c15.pdf
- https://static.usrfiles.com/ugd/b4a829_6e5412aa15f541938f144cb9b6fd8b3b.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_off00006778.bin` `5c0febe1e98a69e6f556de76b362731fc149fd8a7e5ad6d368cb23566c392318`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6778	5376 bytes
`font_01_sfnt_off000079bf.bin` `c059503f0516898c6de8f244f2790b7fba38da7aaea8b812b13af58fcf9edfdd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79BF	9720 bytes

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