PDF malware analysis — malicious · aed89303915b9efd

MALICIOUS

PDF

45.5 KB Created: 2020-07-24 12:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 068ec50327329978a515dad4822e5315 SHA-1: afad4e8f8098c421be8f0c78ff56ef6acb2fcbf7 SHA-256: aed89303915b9efd880aade6e2cfae1b4aa7e901d14045402b653091c0dede7e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One prominent URL, 'https://ttraff.cc/pify?keyword=cccam.+prio++2018', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be corrupted or obfuscated, preventing a clear understanding of its intended lure, but the sheer volume of links suggests a malicious intent, likely to drive traffic to external sites.

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/pify?keyword=cccam.+prio++2018
- http://files.psychotherapy121.com/uploads/1/3/0/9/130969440/zasimisalinugezi.pdf
- http://files.masoncitychristian.com/uploads/1/3/0/7/130740391/xigisupokijuwu.pdf
- http://files.mrbevan.com/uploads/1/3/2/7/132741128/6075355.pdf
- http://files.lindalebaptistchurch.com/uploads/1/3/1/6/131637896/gejiwosipasapibera.pdf
- http://files.mason
- https://cdn.shopify.com/s/files/1/0432/5244/9435/files/15203779001.pdf
- https://cdn.shopify.com/s/files/1/0431/4421/6730/files/32141324278.pdf
- https://cdn.shopify.com/s/files/1/0441/3738/2040/files/wojexorulojibepetorigolep.pdf
- https://cdn.shopify.com/s/files/1/0435/2252/3288/files/79332496073.pdf
- https://cdn.shopify.com/s/files/1/0430/6219/8425/files/fuzufijivoliwesesajabaj.pdf
- https://cdn.shopify.com/s/files/1/0430/2811/9706/files/gisijarozerebupelalud.pdf
- https://cdn.shopify.com/s/files/1/0430/8713/4882/files/73611223321.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
- https://cdn.shopify.com/s/files/1/0432/9462/1862/files/jenitigimuxona.pdf
- https://cdn.shopify.com/s/files/1/0431/6200/9755/files/mimamojisen.pdf
- https://cdn.shopify.com/s/files/1/0428/7512/5923/files/40193469796.pdf
- https://cdn.shopify.com/s/files/1/0428/2449/9367/files/xofudi.pdf
- https://cdn.shopify.com/s/files/1/0431/3235/4727/files/devin.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_off00007581.bin` `6858a9f696cf7233c96fc3b023fed3852e852ca1b19b22346f1a71635926dd28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7581	4928 bytes
`font_01_sfnt_off0000862d.bin` `41180a754a438bc88ffe49532fec0542b885108e5c890921582585604db66bd2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x862D	10156 bytes

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