PDF malware analysis — malicious · b59bc001577e816e

MALICIOUS

PDF

54.3 KB Created: 2020-09-02 09:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 648e6f25fc45a7ee9ae524ef47c77e8e SHA-1: b3743698d4054b73ce9c519c5cc0466d8532cc75 SHA-256: b59bc001577e816e547dd8fb587b527df5855ffe3fb0fc0b87ea4147be76386b

120 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 'https://ttraff.me/wix?keyword=the+interlopers+short+story+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs. The document body, though heavily obfuscated, also contains the same redirector URL. This suggests the primary intent is to redirect the user to a malicious site.

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.me/wix?keyword=the+interlopers+short+story+answers
- https://static.usrfiles.com/ugd/c4b402_d7c99fa5e8c344bda8647e9e0d4d974f.pdf
- https://static.usrfiles.com/ugd/0f1814_deae40244a144479a6ab8f9fa409fce8.pdf
- https://static.usrfiles.com/ugd/b98abb_7655abff507940b8baa9eab89fb611b8.pdf
- https://static.usrfiles.com/ugd/e1c37d_19120cc6a51549c7b801698e0a816c9d.pdf
- https://static.usrfiles.com/ugd/22bf55_18d7386ae22c4c88b324608b5a5e34c6.pdf
- https://static.usrfiles.com/ugd/628a76_5d08847f21ac4a94b9c897c237823b2c.pdf
- https://static.usrfiles.com/ugd/b8c837_55ccc61bb7a942039f0ba64841579924.pdf
- https://static.usrfiles.com/ugd/2c608b_972c936416784066923e25e995a95486.pdf
- https://static.usrfiles.com/ugd/fbccce_646e5b7f73ea4bac8d70833b61ec1aa6.pdf
- https://cdn.shopify.com/s/files/1/0436/9465/3595/files/area_of_2d_shapes_formulas.pdf
- https://cdn.shopify.com/s/files/1/0428/2122/2567/files/taxonomia_de_bivalvos.pdf
- https://cdn.shopify.com/s/files/1/0435/9523/5490/files/fillable_invoice_template_word.pdf
- https://cdn.shopify.com/s/files/1/0435/8651/9203/files/20040460991.pdf
- https://cdn.shopify.com/s/files/1/0436/2534/9273/files/nunerejunejasuva.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_off00007635.bin` `5e23521d543d01f7957d73014dcc5a3dc12593e9f9ab81e897aec21cb81f055a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7635	3100 bytes
`font_01_sfnt_off00008148.bin` `64ebc41165e87620005d676f1f671401636ca2802de724203d6499cd2760646e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8148	4840 bytes
`font_02_sfnt_off000091b2.bin` `3072281c4e5828fec3fb27d81730015ba9709d5ad16576a24ef419ba5a88eba8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91B2	13860 bytes
`font_03_sfnt_off0000bd44.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD44	4324 bytes

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