PDF malware analysis — malicious · 996980471aa69089

MALICIOUS

PDF

51.7 KB Created: 2020-08-01 22:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a924c1bcfe6d37d91ec3c188fddb8008 SHA-1: 7b6697159b79ccb2c36899ba1e2d88d4c57b1bb0 SHA-256: 996980471aa69089f68cbe98ea7535da2ae9cd7b428165592b1d1a467c9d5332

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=ai+mai+mi'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on domains like cdn.shopify.com. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the malicious URL, suggesting an attempt to lure the user to a malicious site.

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=ai+mai+mi
- http://files.onebeautifulmess.com/uploads/1/3/0/7/130776609/312832a.pdf
- http://files.capsulate.life/uploads/1/3/1/4/131482832/sepajetekava.pdf
- http://files.allprorepairnc.com/uploads/1/3/1/1/131164260/d7a3d7408d.pdf
- http://files.vrockers.com/uploads/1/3/1/1/131164519/1565337.pdf
- http://files.springhousegrille.com/uploads/1/3/0/7/130775557/rivelunow.pdf
- https://cdn.shopify.com/s/files/1/0431/8278/4676/files/dotifakupexidilaserejure.pdf
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/gazevubopukidopani.pdf
- https://cdn.shopify.com/s/files/1/0430/9165/6864/files/duguzilodisamiteke.pdf
- https://cdn.shopify.com/s/files/1/0430/2995/4721/files/tobaguratixukavunu.pdf
- https://cdn.shopify.com/s/files/1/0432/3983/3767/files/rilizo.pdf
- https://cdn.shopify.com/s/files/1/0431/5496/4637/files/95184414808.pdf
- https://cdn.shopify.com/s/files/1/0427/6443/5612/files/83132797085.pdf
- https://cdn.shopify.com/s/files/1/0431/9572/8029/files/gekubupibovika.pdf
- https://cdn.shopify.com/s/files/1/0432/7309/3288/files/wumalem.pdf
- https://cdn.shopify.com/s/files/1/0430/6714/6397/files/binuj.pdf
- https://cdn.shopify.com/s/files/1/0429/6910/4540/files/zewunuxinimurefololabitar.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000629a.bin` `b86c342abb63300d2e58f92b6c429d6d3945fdbfbf469f8b4204a79a7dd33eed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x629A	13804 bytes
`font_01_sfnt_off00008ebb.bin` `9b11ca91791201d14538e84073f4d7396130418b141644cf6d2d5681adf49c43`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EBB	4516 bytes
`font_02_sfnt_off00009e01.bin` `36f1a0e50434b015941557691d6477e71700121d5050d3216d880b16911f6519`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E01	10100 bytes

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