PDF malware analysis — malicious · 932a69d4a0efa1e2

MALICIOUS

PDF

39.1 KB Created: 2020-08-22 03:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 01b40fc497c4339abff9b975d793c049 SHA-1: 2850971f5edd20b6e05b9aaafd107562ad87d6ef SHA-256: 932a69d4a0efa1e20385e3feccc29b305a8b84ed15f6f98bc1594b8dcd33a7ba

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains a link to a known malicious redirector, ttraff.ru, which is designed to lure users into clicking on further malicious links. The document body, though heavily obfuscated, contains references to 'Microsoft sql server format code' and numerous URLs hosted on Shopify and other domains, suggesting a link farm or SEO poisoning tactic to attract victims. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=microsoft+sql+server+format+code
- http://vatemukep.phaysoneskincare.com/uploads/1/3/1/6/131606624/7831470.pdf
- http://nerupa.bodylabchiropracticandmassage.com/uploads/1/3/1/3/131379211/156c7b42.pdf
- http://files.athenaart.org/uploads/1/3/1/8/131871433/robijexegelud-fibomekuvo.pdf
- http://files.bluebellhill.org.au/uploads/1/3/0/8/130814605/374201.pdf
- http://vabeg.yureenoh.com/uploads/1/3/1/6/131637030/penusubarobob.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/91147380193.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
- https://cdn.shopify.com/s/files/1/0427/3831/9527/files/foxuwuxekosozulorol.pdf
- https://cdn.shopify.com/s/files/1/0431/7655/8746/files/98296259547.pdf
- https://cdn.shopify.com/s/files/1/0432/0506/6913/files/borivonuwojemorepopibaf.pdf
- https://cdn.shopify.com/s/files/1/0433/2843/8440/files/26241921.pdf
- https://cdn.shopify.com/s/files/1/0430/4892/7386/files/manual_de_taller_kia_cerato_2010.pdf
- https://cdn.shopify.com/s/files/1/0434/3313/2193/files/jujawe.pdf
- https://cdn.shopify.com/s/files/1/0431/8704/4515/files/gotokiwevemalakuvek.pdf
- https://cdn.shopify.com/s/files/1/0433/6546/6270/files/modern_cabinetmaking.pdf
- https://cdn.shopify.com/s/files/1/0430/3532/8663/files/pimudisozavowagi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.pdf
- https://cdn.shopify.com/s/files/1/0440/5487/2214/files/pudufejizefaveta.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_off00005bb6.bin` `9e93444a42f63ad68b758529e3d18cd4e2e08fd6554e984e2340ecd7983c4768`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BB6	5360 bytes
`font_01_sfnt_off00006dda.bin` `29f7e823f8a28adff70d1771bfdcf6cb4383fc08172de4c264619b0099e68094`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DDA	9844 bytes

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