PDF malware analysis — malicious · 25433ebbe5d71095

MALICIOUS

PDF

50.1 KB Created: 2020-08-01 02:45:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b9dafbb394d426179e626bc66615d60c SHA-1: 7c9daf098ad96695bbf90e583f779cebe8357d14 SHA-256: 25433ebbe5d71095136102b7245fba95fb634bfda49abb219c425d7d8c95383b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm with numerous external links, including a redirector to 'ttraff.com'. This indicates a likely SEO poisoning or phishing attack designed to drive traffic to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=yanmar+ym2000+manual+pdf
- http://files.mielapothecary.com/uploads/1/3/2/3/132302876/e0257d893.pdf
- http://files.kbshoppingcenter.com/uploads/1/3/0/8/130874598/xovufotonaxalu_zajinemebarut_fitexilukevo_wonevesuzon.pdf
- http://files.myroadtoironman.com/uploads/1/3/2/6/132696174/978e519fd.pdf
- http://files.pslerevision.com/uploads/1/3/1/4/131437535/sekexopulupuwodedo.pdf
- https://cdn.shopify.com/s/files/1/0428/5107/4214/files/27718464708.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/43192278442.pdf
- https://cdn.shopify.com/s/files/1/0430/6790/0058/files/desapijozow.pdf
- https://cdn.shopify.com/s/files/1/0431/2819/3184/files/nixufisizezapuvexe.pdf
- https://cdn.shopify.com/s/files/1/0437/4550/9537/files/lexafidawefalefegoriluzug.pdf
- https://cdn.shopify.com/s/files/1/0429/0609/1673/files/nutokopijitubojisota.pdf
- https://cdn.shopify.com/s/files/1/0431/9579/3568/files/92004123247.pdf
- https://cdn.shopify.com/s/files/1/0433/3443/4969/files/94173726415.pdf
- https://cdn.shopify.com/s/files/1/0438/2975/6066/files/3113577063.pdf
- https://cdn.shopify.com/s/files/1/0434/7301/0845/files/59757480813.pdf
- https://cdn.shopify.com/s/files/1/0437/4790/1592/files/15571137872.pdf
- https://cdn.shopify.com/s/files/1/0438/4181/4693/files/jubidomivaradutazox.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/61341810862.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_off00006d8a.bin` `9032f26ffa84027884c80508a3b78c38743cce89bf5b5c3bec235b3e6786a938`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D8A	5348 bytes
`font_01_sfnt_off00007faf.bin` `53f02f2abd55b9c2192ce5755e00b25d27f4d865314bee20411d20777abfcb07`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FAF	11336 bytes
`font_02_sfnt_off0000a66c.bin` `6f17b99764d671a96c0d2fd0b5f339513c2ddbf7efa5d755f63b897ad21dd613`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA66C	16064 bytes

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