PDF malware analysis — malicious · a36a622a7f37389a

MALICIOUS

PDF

40.2 KB Created: 2020-07-31 22:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6f0497d5414f525f75a0dccfd47d53b9 SHA-1: a582eb41b2416c87d20238a095dcdfb425887066 SHA-256: a36a622a7f37389aec48e1fc15bc64d9b6a83a7f88822e96679e23dec1d368bf

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, containing numerous external links. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=amumu+support+build'. The document body, though heavily obfuscated, also contains this URL and other links to Shopify-hosted PDFs. This suggests the primary intent is to redirect users to potentially harmful content or to manipulate search engine results.

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/pify?keyword=amumu+support+build
- http://files.bartlettpaintingpros.com/uploads/1/3/0/8/130814258/lifax.pdf
- http://files.joveneslibres.org/uploads/1/3/1/0/131069887/f9f0aba6ef.pdf
- http://files.theartoftoast.com/uploads/1/3/1/3/131380511/vowezagejifuru-guvidevowowawov-fususejemudi.pdf
- http://files.louisvilleccc.org/uploads/1/3/0/8/130813897/c2e86b82384c2.pdf
- https://cdn.shopify.com/s/files/1/0437/6713/6413/files/veguga.pdf
- https://cdn.shopify.com/s/files/1/0430/0262/6202/files/59388528906.pdf
- https://cdn.shopify.com/s/files/1/0431/3907/2161/files/26616313264.pdf
- https://cdn.shopify.com/s/files/1/0433/4993/4229/files/80165386596.pdf
- https://cdn.shopify.com/s/files/1/0429/0209/3987/files/43916266525.pdf
- https://cdn.shopify.com/s/files/1/0429/8155/6375/files/jepojolukaneliraki.pdf
- https://cdn.shopify.com/s/files/1/0437/3712/0933/files/rikoginidelizeso.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/boxetadugabififaneno.pdf
- https://cdn.shopify.com/s/files/1/0434/2880/6808/files/visil.pdf
- https://cdn.shopify.com/s/files/1/0440/0083/7782/files/koraladabegu.pdf
- https://cdn.shopify.com/s/files/1/0431/7144/6939/files/judetuj.pdf
- https://cdn.shopify.com/s/files/1/0431/4388/9052/files/85748721880.pdf
- https://cdn.shopify.com/s/files/1/0433/1618/3205/files/semirezutolujufifuzodo.pdf
- https://cdn.shopify.com/s/files/1/0431/0047/1456/files/forexuxafade.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_off00005834.bin` `2f3f108006cc92808ee518aa94f7105520c4688045c6897df4f12d7cbc8f3022`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5834	5024 bytes
`font_01_sfnt_off0000692a.bin` `8d2da91c21c7b98fb8cce857f8f5ecfe93a6accecf0ec078b0267371d654f881`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x692A	13552 bytes

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