PDF malware analysis — malicious · 354d3c986b9bfdd0

MALICIOUS

PDF

60.5 KB Created: 2020-08-29 11:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 74c8eb16b85472824abb7d82caad23dc SHA-1: aa5f4fb8f7aa6f3e14c1b14da15829a97982321a SHA-256: 354d3c986b9bfdd0530a5b834e1c355de1772a2a840b750372590a3c4916bc2f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many pointing to external PDF files hosted on Shopify. One of these links, 'https://ttraff.ru/wix?keyword=lexus+gx+460+2014', is flagged as a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content. No scripts were extracted, and the document body is heavily obfuscated.

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.ru/wix?keyword=lexus+gx+460+2014
- https://cdn.shopify.com/s/files/1/0435/1682/1672/files/48443133361.pdf
- https://cdn.shopify.com/s/files/1/0463/6822/7483/files/social_security_card_template_download.pdf
- https://cdn.shopify.com/s/files/1/0437/6251/6122/files/between_date_sqlite_android.pdf
- https://cdn.shopify.com/s/files/1/0434/5410/3713/files/solid_principles_c.pdf
- https://cdn.shopify.com/s/files/1/0435/4483/8293/files/airplane_mode_logan_paul_movie.pdf
- https://static.usrfiles.com/ugd/b8c837_976e881af58d480eb561f86e1fcba9f4.pdf
- https://static.usrfiles.com/ugd/b8c837_f3f4a0e144e5436d86d7252bc50e2254.pdf
- https://static.usrfiles.com/ugd/b8c837_d981cf72802143b6b7f0c835c72fc7fa.pdf
- https://cdn.shopify.com/s/files/1/0437/7696/6808/files/fabevaviwovu.pdf
- https://cdn.shopify.com/s/files/1/0437/8266/8437/files/fonuratasekeruwabuba.pdf
- https://cdn.shopify.com/s/files/1/0431/7514/9719/files/blood_diamond_movie_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/0174/1463/files/xifuworuwitijelasaviwe.pdf
- https://static.usrfiles.com/ugd/b8c837_b9c578f1fca946be8a8148f259330973.pdf
- https://static.usrfiles.com/ugd/b8c837_b899be96b31248479493df062aafba81.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_off0000841a.bin` `d342002b7d65b824257e79d16267fe6a69b8ef0cc404c432fe4ed7255dc35350`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x841A	6072 bytes
`font_01_sfnt_off000098ed.bin` `624ce8d158a64036aad0ec321d86f88ea67b9e00a50a75d116435a84841089eb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98ED	5092 bytes
`font_02_sfnt_off0000aa76.bin` `fb2404d3bae6e5d4c479242729fbd5819785052827e9ec1f32ef0fb829d80f7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAA76	11064 bytes
`font_03_sfnt_off0000d008.bin` `2d958bd008b8db5b33092f112e99c856adbcc0a100e950d14ff814b784be6357`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD008	16060 bytes

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