PDF malware analysis — malicious · 2fdaecf74a7fc599

MALICIOUS

PDF

47.2 KB Created: 2020-09-19 10:09:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aad54994c2f3024379c6a0e937c9749d SHA-1: 53f279cb7ac505ea61af204f33ea497216586a99 SHA-256: 2fdaecf74a7fc599c9fd55e1220ba1bc7fdc5f57343ad66d8add68c08f1e6431

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple links, with one prominently leading to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, also contains the same malicious URL, suggesting an attempt to drive traffic to potentially harmful content. The presence of numerous PDF links further indicates a link farm strategy, common in SEO poisoning attacks.

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.me/wix?keyword=funny+memes+coronavirus
- http://nidimino.planninginblackandwhite.com/uploads/1/3/1/4/131437595/dedulemokorug.pdf
- http://files.chiroability.com/uploads/1/3/1/6/131637853/8febec.pdf
- http://files.choosehadley.org/uploads/1/3/1/8/131856279/0045bd2.pdf
- http://files.andilockemears.com/uploads/1/3/1/6/131637841/zevanuwumipoxozi.pdf
- http://gezavebok.advocates12508.com/uploads/1/3/1/8/131871518/3062bf6aaa85.pdf
- http://files.cotoxguide.org/uploads/1/3/2/7/132710782/5442071.pdf
- http://tepin.albertfpark.com/uploads/1/3/0/7/130775903/gosojikabaxebadedibi.pdf
- http://dixuz.thevillageyarnery.com/uploads/1/3/0/7/130740166/bamasazoporis_vanixirojusu_rijakore.pdf
- https://cdn.shopify.com/s/files/1/0463/1278/4034/files/palabras_formales_para_un_ensayo.pdf
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/tamegisurozavikobokigutuz.pdf
- https://cdn.shopify.com/s/files/1/0437/3640/0037/files/69659633916.pdf
- https://261cd96f-37d9-4a5f-9a0c-1d6b2bbf2a87.filesusr.com/ugd/2ac701_82cbe8862e49439bbe7bfbaecdca4697.pdf?index=true
- https://22766daa-b01d-4690-a943-00660abd3326.filesusr.com/ugd/843280_ad33d0aa6f864642a0202111b40b7696.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006491.bin` `6bc7aab3822012131d5e4028df6dfcd218542f632cf1bf92c227df8f8f9fbc22`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6491	3404 bytes
`font_01_sfnt_off000070be.bin` `8b1e6b34d84aa9b1fb1829ecd72fa1b350ae6ef826532cb1c84c853ca4c95071`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70BE	5028 bytes
`font_02_sfnt_off000081ca.bin` `1b46d5bc4fdbf0d6fe8c63cd43ee594182eadc69f4e4c2f28049411ad73c8202`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81CA	1792 bytes
`font_03_sfnt_off00008aa3.bin` `de80728cc4f308dc78dfffd1cbb1f4fbd20a8468d3771839107e4329b66d6cf5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AA3	10784 bytes

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