PDF malware analysis — malicious · 3da33abb2e223801

MALICIOUS

PDF

46.3 KB Created: 2020-08-06 18:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c1a3cd9d6f7f91acc9aae699cffeb426 SHA-1: 8b2f26690d6c7373966229ff9fd8f538279876c3 SHA-256: 3da33abb2e2238019b5e6dde0956e8db6d48ac79aa6f97734214b26a1ac5c206

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to the South African constitution and the wkhtmltopdf tool, suggesting a lure. The primary malicious URL is https://ttraff.com/pify?keyword=the+south+african+constitution+pdf, which is designed to redirect users to further malicious content.

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=the+south+african+constitution+pdf
- http://files.kcomemphis.org/uploads/1/3/1/3/131380236/minirivunu_jikubesumoteso_kadoxanawa.pdf
- http://files.siobhanwelch.com/uploads/1/3/1/4/131437924/5645889.pdf
- http://xiwewofud.greggrmurray.com/uploads/1/3/0/7/130776542/07cde3f.pdf
- http://mojikegu.myplaycafe.com/uploads/1/3/1/0/131070792/gajenob-fatovurixadukax.pdf
- http://files.celiamoore.com/uploads/1/3/2/6/132681985/3421801.pdf
- https://cdn.shopify.com/s/files/1/0432/7004/5864/files/63937081522.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/22513511833.pdf
- https://cdn.shopify.com/s/files/1/0433/7362/5500/files/1998_ford_f150_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/3305/0779/files/52983573214.pdf
- https://cdn.shopify.com/s/files/1/0432/5857/7046/files/remewodijanuno.pdf
- https://cdn.shopify.com/s/files/1/0433/0985/8984/files/kivukanigabasebujidivun.pdf
- https://cdn.shopify.com/s/files/1/0432/5657/8206/files/list_of_mock_the_week_episodes.pdf
- https://cdn.shopify.com/s/files/1/0428/5225/3863/files/letuforebepazoderoji.pdf
- https://cdn.shopify.com/s/files/1/0428/5448/2079/files/66957719192.pdf
- https://cdn.shopify.com/s/files/1/0436/2207/2480/files/form_mail_scripts.pdf
- https://cdn.shopify.com/s/files/1/0433/4492/0734/files/62614675033.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_off00006b56.bin` `b5f2c66dc026f01b5cdaee9c6586f7790dc6fe8953957bb80f1caf3dc8d746c1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B56	5040 bytes
`font_01_sfnt_off00007c6e.bin` `13996f93ddd86e0b98ea37a3c6306bdf4cace4185c2c1ecc863ed785a9d5ae82`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C6E	9944 bytes
`font_02_sfnt_off00009e6d.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E6D	4324 bytes

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