PDF malware analysis — malicious · c101201b2c341a86

MALICIOUS

PDF

42.8 KB Created: 2020-08-25 11:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ae2e0bd206be1fe8e6c85a9ce5c18393 SHA-1: c673c10f1f509a037bf2bff71edf3c008c3e0dd0 SHA-256: c101201b2c341a86e08d4dfe6c7c9a3c55d7296a4597d1f7db9b5049602e3f8b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=casio+xj-+v1+projector+manual'. This URL is presented within the document body, disguised as a projector manual, to entice users to click it. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many of which point to Shopify domains, but one is to 'http://files.uwmchb.com/uploads/1/3/1/3/131383727/muxunebixogibarodo.pdf'. No scripts were extracted, and the document body content is largely unreadable binary data, making it difficult to ascertain further intent beyond the malicious link.

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=casio+xj-+v1+projector+manual
- http://files.uwmchb.com/uploads/1/3/1/3/131383727/muxunebixogibarodo.pdf
- https://cdn.shopify.com/s/files/1/0447/8841/6669/files/tool_forge_tinkers.pdf
- https://cdn.shopify.com/s/files/1/0433/8191/5802/files/5831694727.pdf
- https://cdn.shopify.com/s/files/1/0428/4062/1222/files/53811973778.pdf
- https://cdn.shopify.com/s/files/1/0432/8570/8968/files/wikivivetimumoxedekeporef.pdf
- https://cdn.shopify.com/s/files/1/0430/2172/9955/files/ubuntu_14._04_nvidia.pdf
- https://cdn.shopify.com/s/files/1/0429/8522/6393/files/xajolokit.pdf
- https://cdn.shopify.com/s/files/1/0435/1731/3178/files/sudulomesivoxepefono.pdf
- https://cdn.shopify.com/s/files/1/0430/4715/7911/files/relawimulemuvusuzed.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8646/files/doketok.pdf
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/68246234999.pdf
- https://cdn.shopify.com/s/files/1/0439/5037/5070/files/rilijidosapapaxarexo.pdf
- https://cdn.shopify.com/s/files/1/0431/5162/2306/files/8244782067.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_off00005a7a.bin` `f12b1c0501310767bc240233dd8f24e8dc74fbaa3367d8851a3cd5d562c003ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A7A	5272 bytes
`font_01_sfnt_off00006c6f.bin` `7cf02d295f80e3c3824cab353e3052a8c21cd367467a7e7d8a9a1e118a429688`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C6F	10552 bytes
`font_02_sfnt_off0000907a.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x907A	4324 bytes

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