PDF malware analysis — malicious · 9ff3e1075e7880ab

MALICIOUS

PDF

37.9 KB Created: 2020-08-23 11:44:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a75c1c7c68711f5a579f52ed2d6ce686 SHA-1: 606fe759d675ee020b59f034baf2e15c06b9da14 SHA-256: 9ff3e1075e7880ab09a45e01a27da7dde6289ed16095c6c86caba23993780459

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.com/pify?keyword=cub+scout+den+leader+handbook+pdf, which likely leads to further malicious content. The document body, though heavily obfuscated, contains references to the same URL and other PDF links, reinforcing the lure strategy.

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=cub+scout+den+leader+handbook+pdf
- http://files.thepts.net/uploads/1/3/0/9/130969820/1112648.pdf
- http://files.iittlesiz.com/uploads/1/3/0/7/130738614/bedilazusalabox-kipul-vufawutalano.pdf
- http://files.clareslaneycounselling.com/uploads/1/3/0/8/130874102/bujowisutoke_togojig_sinowakedapub.pdf
- http://files.newchoicemusic.com/uploads/1/3/1/4/131409009/c93bcf2.pdf
- http://fawinufe.tnfederationfortheaging.org/uploads/1/3/0/7/130776457/2b079a89.pdf
- https://cdn.shopify.com/s/files/1/0437/8863/2213/files/isis_kills_gays.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/27587503899.pdf
- https://cdn.shopify.com/s/files/1/0436/9724/2280/files/sheetz_dc_claysburg_pa.pdf
- https://cdn.shopify.com/s/files/1/0435/2072/1055/files/vimiluwalikudowi.pdf
- https://cdn.shopify.com/s/files/1/0429/7061/1861/files/xaxajul.pdf
- https://cdn.shopify.com/s/files/1/0435/5650/3704/files/67357390761.pdf
- https://cdn.shopify.com/s/files/1/0432/1653/5720/files/volibear_build_s7.pdf
- https://cdn.shopify.com/s/files/1/0433/2797/9678/files/pathway_bronkopneumonia_pada_anak.pdf
- https://cdn.shopify.com/s/files/1/0438/4518/9797/files/spanish_learning_books_for_beginners.pdf
- https://cdn.shopify.com/s/files/1/0440/5703/4902/files/giant_defy_2014_size_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nudukesobiji.pdf
- https://cdn.shopify.com/s/files/1/0437/9131/9201/files/raw_diet_recipes.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_off000056bb.bin` `d0b997412753e9029aad434bee046433ac682c0ed8756892596fcbcad06bb62b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x56BB	5352 bytes
`font_01_sfnt_off000068d2.bin` `b9a3355ca48a302eb6f02ffcbaad630ac012438c2e3cec74172f166e0c8f5f34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68D2	9896 bytes

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