PDF malware analysis — malicious · 5229521fb059102b

MALICIOUS

PDF

45.3 KB Created: 2020-08-03 10:58:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c33ca66a3e4a430a9665338787773172 SHA-1: 1d8ee96b989163b8420af29947f2bb8becf82796 SHA-256: 5229521fb059102b41618db04f251ba534d4042b58e1b9955c4777cc8d186ae3

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple heuristics indicating malicious redirection and a link farm. Specifically, it links to a known malicious redirector infrastructure at 'ttraff.com' and hosts a large number of external PDF links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the target URL and a reference to 'lawn and garden', suggesting a lure. The ML classifier also strongly flagged this PDF as malicious.

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=96+lawn+and+garden
- http://files.peopleripple.com/uploads/1/3/1/1/131164424/pivirop_gejekuwox_dedopu_vofesiremaso.pdf
- http://files.innovativestoneconcepts.com/uploads/1/3/0/7/130739895/974f3afa68111.pdf
- http://files.ritasbeautysupply.com/uploads/1/3/2/7/132712129/9430677.pdf
- http://files.parentspeace.com/uploads/1/3/0/7/130738758/17d433ddd5c.pdf
- http://files.glacierwolfpacktheatre.com/uploads/1/3/1/1/131163740/sonarixorefude.pdf
- https://cdn.shopify.com/s/files/1/0434/6164/0358/files/23137651182.pdf
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/dezememulotureke.pdf
- https://cdn.shopify.com/s/files/1/0431/1931/3062/files/23417278083.pdf
- https://cdn.shopify.com/s/files/1/0433/5045/8520/files/farafejanebipijawazet.pdf
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/bipajilejivekili.pdf
- https://cdn.shopify.com/s/files/1/0433/5193/3078/files/duforivexolonaxunusujodu.pdf
- https://cdn.shopify.com/s/files/1/0430/5892/1621/files/37604445989.pdf
- https://cdn.shopify.com/s/files/1/0433/8486/4917/files/22707449492.pdf
- https://cdn.shopify.com/s/files/1/0434/4234/0007/files/28938481542.pdf
- https://cdn.shopify.com/s/files/1/0440/6162/2437/files/jipidavimalefajo.pdf
- https://cdn.shopify.com/s/files/1/0430/2841/4618/files/89012630984.pdf
- https://cdn.shopify.com/s/files/1/0437/5560/2078/files/3923794864.pdf
- https://cdn.shopify.com/s/files/1/0430/0180/6997/files/70518950989.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_off0000735a.bin` `c1c29a51bbbdec006b45ed0b5ebabd60d70a15449e009c2eb3088321fd0b63a9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x735A	5120 bytes
`font_01_sfnt_off000084e4.bin` `ab507a3fc1a84b5562bdd031fe02141f5b0b120aa6d403691887a18279b7a4e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84E4	10356 bytes

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