PDF malware analysis — malicious · 2ecfb5cb077233d0

MALICIOUS

PDF

44.8 KB Created: 2020-07-31 13:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9d8cd5e83e70cf2f7f9431c720746ca8 SHA-1: 16aaa055f52a57ba015c1fc944bddd2e134b1af2 SHA-256: 2ecfb5cb077233d069061e68a323cc2e8b6400cb54796bf3893d4581314d5a38

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link directs users to 'ttraff.ru', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains keywords related to the 'Australian corporations act 2020', suggesting a lure to disguise the malicious intent. The presence of numerous external links, including a 'link farm', indicates a strategy to distribute traffic and potentially evade detection.

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=australian+corporations+act+2020+pdf
- http://files.themagicofwill.com/uploads/1/3/1/4/131438127/zixorusudekago.pdf
- http://files.wapentakeleeds.co.uk/uploads/1/3/0/7/130739510/5923769.pdf
- http://files.jazminquill.com/uploads/1/3/1/6/131636914/6190629.pdf
- http://files.jaz
- https://cdn.shopify.com/s/files/1/0435/5037/6100/files/42829042794.pdf
- https://cdn.shopify.com/s/files/1/0433/1218/5499/files/vasivinire.pdf
- https://cdn.shopify.com/s/files/1/0436/0133/0339/files/novijuxemeji.pdf
- https://cdn.shopify.com/s/files/1/0434/8962/4224/files/44846321779.pdf
- https://cdn.shopify.com/s/files/1/0435/8114/5243/files/53221447956.pdf
- https://cdn.shopify.com/s/files/1/0430/8729/8714/files/juralotabedeveweburopi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fejekav.pdf
- https://cdn.shopify.com/s/files/1/0432/1899/3320/files/33983796125.pdf
- https://cdn.shopify.com/s/files/1/0434/7772/9432/files/8944907804.pdf
- https://cdn.shopify.com/s/files/1/0435/0086/3643/files/23023499261.pdf
- https://cdn.shopify.com/s/files/1/0427/6148/6503/files/9777937471.pdf
- https://cdn.shopify.com/s/files/1/0435/6400/7583/files/mapinin.pdf
- https://cdn.shopify.com/s/files/1/0433/4085/7494/files/79632573421.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdf
- https://cdn.shopify.com/s/files/1/0440/7800/6437/files/dodewidimiwexizikime.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_off000072bb.bin` `a61021aed1d5ef61731cc6ad80011b06636cb9d112b09fdd8b43aa3e68b37db1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72BB	5176 bytes
`font_01_sfnt_off0000844f.bin` `6245a70b6a688f52cc7cbb13128fd97dcbfba23695eb92b8eb9b73568fed1bc9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x844F	9816 bytes

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