PDF malware analysis — malicious · d62b01fdda3a6e9f

MALICIOUS

PDF

45.8 KB Created: 2020-09-18 03:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02850184253591387c9cab767c98be74 SHA-1: 8a17bc363e242244ebc5e441b83ecb29506d86f3 SHA-256: d62b01fdda3a6e9f8f014a0c3757a0ad86ff3270ebde8e7ddfc5bb8b3442c59b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a lure related to 'Avast license key crack' and embeds numerous external links. One of these links, 'https://ttraff.cc/wix?keyword=avast+license+key+crack', is flagged as a malicious redirector. The presence of a large number of external PDF links, many of which are hosted on suspicious domains, indicates a link farm designed to distribute malicious content or engage in SEO manipulation for phishing purposes. The ML classifier also strongly indicated maliciousness.

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.cc/wix?keyword=avast+license+key+crack
- http://rijelasug.charlescdixon.com/uploads/1/3/1/0/131070993/51390a83ab.pdf
- http://talejina.fiddleonthefarm.com/uploads/1/3/1/4/131452821/rikagufeb.pdf
- http://files.fionasophiaphotography.com/uploads/1/3/2/3/132303117/xejek_jutuzijesoda.pdf
- http://files.forgingdreams.com.au/uploads/1/3/2/6/132681452/8c847e5d648dc.pdf
- https://66620baa-ff0a-4999-9d0e-824e67d8c1f1.filesusr.com/ugd/8b49c6_cf1a9143dc8d42afa192617e80d64e17.pdf?index=true
- https://a7b6d619-899a-4845-acda-28799f99c91c.filesusr.com/ugd/0af078_9360006e26cb4524929e72462450a2b0.pdf?index=true
- https://14fe72ff-c5c3-4e8c-9cbb-43e4a96227f3.filesusr.com/ugd/5e81b9_f48750fe97f54d66983a9314eb6f9638.pdf?index=true
- https://d0e61418-8ab6-40c1-b35b-7755709600d5.filesusr.com/ugd/89363e_9544aeaabed54538b2e13b9abf64077b.pdf?index=true
- https://9847aa09-30da-4341-adfc-073f4b9e8122.filesusr.com/ugd/d8966e_036a7f4a554f4d32a9c8a1847e603b5e.pdf?index=true
- https://afa12b85-272c-4ccd-bce3-dbf82a1ee152.filesusr.com/ugd/81cd61_58567147cfd048ebb8b0d59ef51436a7.pdf?index=true
- https://b370411d-8669-43c2-94af-4f2b198df8cf.filesusr.com/ugd/89602e_1fa6fa39db024a6daffca127a276276f.pdf?index=true
- https://6bb5126e-0905-497a-a51a-422dce5ef146.filesusr.com/ugd/9f06f8_81bbf97669a54d7fa7845697addb62ef.pdf?index=true
- https://04c2d68b-2ae6-4acf-a806-3c63b91c0115.filesusr.com/ugd/405339_47bf1681105c467c81f3333e238cedda.pdf?index=true
- 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_off00007493.bin` `f564f86f0e7c46c0ddbe303e969c2b0ae3504fe83065a6b10aa1c9149f6c97e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7493	5008 bytes
`font_01_sfnt_off000085bb.bin` `cfb7eb272eab77a719c7e2c3bfb18fed9db6ad84274efe3de06d46dca14a5c5c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85BB	10856 bytes

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