PDF malware analysis — malicious · baaa772d076c1c6d

MALICIOUS

PDF

35.7 KB Created: 2020-08-05 11:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9e83cc0027b9146febdcb30a2db4a004 SHA-1: 0a35155890b0a0b87584ef63dca77ef423ffca01 SHA-256: baaa772d076c1c6d495584ba21b7bfdf063fdb73ac4237d0ca0146699d665c77

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One critical heuristic identified a malicious redirector link to 'ttraff.com', which is likely used to funnel users to malicious sites. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to lure users to a potentially harmful destination.

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.com/pify?keyword=beowulf+a+verse+translation+norton+critical+editions+pdf
- http://files.empowerunit.org/uploads/1/3/1/3/131384468/lozapiwo.pdf
- http://files.bestmassageinpensacola.com/uploads/1/3/1/4/131408204/damegemumoxizute.pdf
- http://files.theoldguardofprinceton.org/uploads/1/3/1/3/131380666/gajesitosonekat-babadavifotiwiz.pdf
- http://files.predictivetrial.com/uploads/1/3/0/7/130776110/8749130.pdf
- https://cdn.shopify.com/s/files/1/0429/0281/4876/files/segunujadamuvedonutemomi.pdf
- https://cdn.shopify.com/s/files/1/0438/1619/0112/files/fawobewomef.pdf
- https://cdn.shopify.com/s/files/1/0434/7396/1110/files/juwirekefadixupoxe.pdf
- https://cdn.shopify.com/s/files/1/0435/3628/5860/files/annamayya_keerthana_lyrics_telugu.pdf
- https://cdn.shopify.com/s/files/1/0431/7298/7046/files/27143671256.pdf
- https://cdn.shopify.com/s/files/1/0432/6863/6834/files/45435456766.pdf
- https://cdn.shopify.com/s/files/1/0432/1175/1579/files/mexabulipudufexiwoluvib.pdf
- https://cdn.shopify.com/s/files/1/0438/2742/9533/files/screen_close_window.pdf
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/11442984724.pdf
- https://cdn.shopify.com/s/files/1/0437/1975/3879/files/american_college_of_physicians_ethics_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/9177/1046/files/bapiniwijagutu.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/31056877580.pdf
- https://cdn.shopify.com/s/files/1/0432/2980/6759/files/merenorukavovobatibakof.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_off00004d18.bin` `8c2bb7ed6c34f5f0495d0a7179bd17b136f86f84456b82b6c07ef2fe9105fa2d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D18	5352 bytes
`font_01_sfnt_off00005f7e.bin` `4b076b1ff9848b2d84bd84081a1a508c4b1700c6df34dc88ab6307d410effbc5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F7E	10004 bytes

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