PDF malware analysis — malicious · fda96eefab97dd93

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 04:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bb5fde944e07f0955b0e1da1482c23d7 SHA-1: f92310337bbc93e49dc76c296149726d7a248fa4 SHA-256: fda96eefab97dd9396459dab6caccbf7ee45257df5211abc08c8daf92ef0b1b1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=club+car+battery+chargers', which is flagged as malicious. The presence of numerous external links, many pointing to Shopify domains, suggests a link farm or SEO manipulation tactic, likely intended to lead users to malicious content or phishing pages.

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.ru/pify?keyword=club+car+battery+chargers
- http://files.daviddostilioart.com/uploads/1/3/0/7/130739059/2571553.pdf
- http://files.ahhs2020.com/uploads/1/3/1/4/131438419/81c39c15ccefc57.pdf
- http://files.linhr.com/uploads/1/3/1/0/131070189/tabotusatoboza.pdf
- http://files.anaturalselectiongsd.com/uploads/1/3/0/9/130968920/435a90d7.pdf
- https://cdn.shopify.com/s/files/1/0434/1363/5226/files/5989064204.pdf
- https://cdn.shopify.com/s/files/1/0435/1610/0776/files/41244282672.pdf
- https://cdn.shopify.com/s/files/1/0433/0654/9406/files/lirogasubufulosurom.pdf
- https://cdn.shopify.com/s/files/1/0439/1036/5339/files/8283820434.pdf
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/nexaluli.pdf
- https://cdn.shopify.com/s/files/1/0431/5476/8021/files/3359094621.pdf
- https://cdn.shopify.com/s/files/1/0437/6435/1130/files/34572790880.pdf
- https://cdn.shopify.com/s/files/1/0430/2051/7537/files/head_first_python.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46283819311.pdf
- https://cdn.shopify.com/s/files/1/0431/5627/5362/files/runescape_ranged_training.pdf
- https://cdn.shopify.com/s/files/1/0429/7755/8681/files/fajosizobojagod.pdf
- https://cdn.shopify.com/s/files/1/0429/0940/1254/files/wurizepeduduzugazo.pdf
- https://cdn.shopify.com/s/files/1/0432/6418/0390/files/western_union_receipt_generator_v2.pdf
- https://cdn.shopify.com/s/files/1/0434/6186/9733/files/debaxarufajamekamedibixo.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_off000069bc.bin` `d2c55442bfa375faf961e22173e28632fff5bc7d2a027f42560ae42b940f6cb4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69BC	5208 bytes
`font_01_sfnt_off00007b6e.bin` `0c7c2ea1f2551f47e6fb30a75c7c1d6ee220ec2395c2a00250fdf51c7cff64a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B6E	9780 bytes

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