PDF malware analysis — malicious · 4c6aeba0680ed08a

MALICIOUS

PDF

57.5 KB Created: 2020-07-29 18:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a517bb06557672283bae4607c193b189 SHA-1: a04345cf24033407ef85dd160b33c12c77bf55c4 SHA-256: 4c6aeba0680ed08ad853d34ef34bb5f1ebba8f4044c9553e6ea1958e9765bc23

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is ttraff.cc, which is known for redirecting to malicious content. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is not content delivery but rather to host the malicious links.

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=the+moon+of+the+caribbees+pdf
- http://files.madamedrydensgrade5class.com/uploads/1/3/1/6/131607027/dowejedaj.pdf
- http://files.tt-motorcycles.com/uploads/1/3/1/1/131164414/duvunovune.pdf
- http://files.amazingdownunder.com/uploads/1/3/0/7/130776757/vafoj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26384136461.pdf
- https://cdn.shopify.com/s/files/1/0431/0715/6128/files/nixixileropexupalugope.pdf
- https://cdn.shopify.com/s/files/1/0433/1179/2286/files/66888744254.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/pevovepi.pdf
- https://cdn.shopify.com/s/files/1/0435/2186/7930/files/73058799014.pdf
- https://cdn.shopify.com/s/files/1/0434/3057/6285/files/2619000278.pdf
- https://cdn.shopify.com/s/files/1/0428/6588/5351/files/27582237903.pdf
- https://cdn.shopify.com/s/files/1/0437/3177/9733/files/dasibaw.pdf
- https://cdn.shopify.com/s/files/1/0431/4837/8280/files/bexotomizenupebo.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/temeribeganujeposorax.pdf
- https://cdn.shopify.com/s/files/1/0431/3061/8011/files/83865852316.pdf
- https://cdn.shopify.com/s/files/1/0439/9998/5822/files/85045379386.pdf
- https://cdn.shopify.com/s/files/1/0430/3552/5282/files/95896728762.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
`stream_007_off0000a8ee.bin` `e85fcc412b27e734a74b45b9af4c710f5c12cf6c3194cd67fbfdd1a90d23c07f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xA8EE	26920 bytes
`font_00_sfnt_off0000747f.bin` `44be21e15e323dd71dbd439139c4f33a1433d142610ea21eba79af719e3c3e32`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x747F	5240 bytes
`font_01_sfnt_off00008613.bin` `803e62b0aefdfb53cc20ee1a4443564a3485f47422ae9982ac30eef89ecf6be7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8613	10124 bytes

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