PDF malware analysis — malicious · 2dd39b767edefffd

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 13:35:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9da13bf69c17e1e205ed674a23f992dc SHA-1: 36513586f5fd36118047c2024e285667dbce22cb SHA-256: 2dd39b767edefffd303bf8cd6566c3a209b96250cb5a7fbe9568ff9159d6efe6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of embedded links, many pointing to what appears to be a link farm hosted on Shopify, with a primary redirector URL to 'ttraff.ru'. This indicates a malicious redirector pattern designed to funnel users to potentially harmful destinations. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the primary malicious URL.

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=hartman+color+personality+test+pdf
- http://fufovep.vvsalesteam.com/uploads/1/3/0/7/130739430/banuga-wapejemig-wuzewikipu-toleloxefabipo.pdf
- http://files.latechcrrc.org/uploads/1/3/1/4/131407493/wikaribumuvila-vesadoneji-wulimelilaj-motaxozajazu.pdf
- http://files.ericpellini.com/uploads/1/3/1/1/131163859/vusomakudofu.pdf
- http://files.matthewkalliman.com/uploads/1/3/1/4/131407361/5125737.pdf
- http://zisesego.ffoy.org/uploads/1/3/1/1/131164250/fekerafo.pdf
- https://cdn.shopify.com/s/files/1/0435/0741/7253/files/gelibukipidekere.pdf
- https://cdn.shopify.com/s/files/1/0438/2470/9782/files/23646357518.pdf
- https://cdn.shopify.com/s/files/1/0432/5507/0880/files/87250161617.pdf
- https://cdn.shopify.com/s/files/1/0429/6258/3711/files/gukofemefabus.pdf
- https://cdn.shopify.com/s/files/1/0432/5621/7750/files/minuet_in_g_js_bach.pdf
- https://cdn.shopify.com/s/files/1/0430/9070/6599/files/11749887699.pdf
- https://cdn.shopify.com/s/files/1/0434/5207/2086/files/69499647284.pdf
- https://cdn.shopify.com/s/files/1/0440/6735/6824/files/been_or_gone.pdf
- https://cdn.shopify.com/s/files/1/0430/3667/2162/files/xupogomuzozogegafija.pdf
- https://cdn.shopify.com/s/files/1/0428/1778/1927/files/fofoditalomirekemebekupur.pdf
- https://cdn.shopify.com/s/files/1/0431/0351/8882/files/88996341539.pdf
- https://cdn.shopify.com/s/files/1/0438/6937/2576/files/13804022401.pdf
- https://cdn.shopify.com/s/files/1/0434/6164/0358/files/satiludovegixipe.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_off000070b4.bin` `ebaf4392f48831256d2a73bcac6ba1afe832e20ee83614b0cd11bf85fea1d4ee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70B4	5364 bytes
`font_01_sfnt_off000082da.bin` `4f81e18be94852bae7d1bd4b9cccde95091c8ac3ff53cee9b75d292b99303742`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82DA	10372 bytes

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