PDF malware analysis — malicious · b664d777978b5850

MALICIOUS

PDF

52.7 KB Created: 2020-09-05 07:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 783f51c8e3e02fedad20dbf26a991c81 SHA-1: 594f7f5463741254ecaa339acb49fedf87334cb2 SHA-256: b664d777978b5850686817b18fef58af2e6047a978be19188baad1f07c6eeb96

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one heuristic identifying a critical PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.link/wix?keyword=repairing+a+hole+in+a+sheetrock+wall'. Another heuristic, PDF_SEO_LINK_FARM, indicates a large number of external links, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search results or distribute content. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, reinforcing the lure. No scripts were extracted from this sample.

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=repairing+a+hole+in+a+sheetrock+wall
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/74130623752.pdf
- https://cdn.shopify.com/s/files/1/0437/7473/8586/files/38499091228.pdf
- https://cdn.shopify.com/s/files/1/0434/4519/0821/files/transformers_autobot_stronghold_2_games.pdf
- https://cdn.shopify.com/s/files/1/0437/9649/6544/files/diagnostico_de_enfermeria_cirrosis_hepatica.pdf
- https://cdn.shopify.com/s/files/1/0435/9458/0136/files/cuts_you_up_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0429/7339/7145/files/66093306255.pdf
- https://cdn.shopify.com/s/files/1/0429/8558/6849/files/75747781753.pdf
- https://cdn.shopify.com/s/files/1/0431/1882/1530/files/beginnings_and_beyond_foundations_in_early_childhood_education.pdf
- https://static.usrfiles.com/ugd/52b593_1a0fa664e3704fa28c57ca43bff8949c.pdf
- https://static.usrfiles.com/ugd/b8c837_757eb45f7b604307b38eaf564db98e1c.pdf
- https://static.usrfiles.com/ugd/d216cb_1bb7b0ba0f3742e39bb70020cf44d183.pdf
- https://static.usrfiles.com/ugd/4542d9_4367d909078345c493d65edaa08a1b0f.pdf
- https://static.usrfiles.com/ugd/badafb_c41ab06d06534df2bd2c1c41fff21878.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007fdf.bin` `45277e607b04d232adc4fcf4a6b217a28f484c3813473211aa401a00fbbf1c08`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FDF	5360 bytes
`font_01_sfnt_off00009224.bin` `1f79b081fe245cf9181f2e6ad484d5de3f355e0828dbe7aa1c14a68e096e11b6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9224	6068 bytes
`font_02_sfnt_off0000a1d4.bin` `c54edaa55d42d518c85687219c4990d02e1e07186467f31c87c33936525dc89b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA1D4	10448 bytes

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