PDF malware analysis — malicious · 7d495f887529ff52

MALICIOUS

PDF

43.9 KB Created: 2020-08-30 05:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: cdb2dd07617c94955444e919cfae0cb0 SHA-1: 9329bf167a56c73316d4840e9d14c60bae53b449 SHA-256: 7d495f887529ff52640c426448c696e827342f52fba73464b22d6c05184c9fb5

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains the same URL and references 'Eve online tritanium', suggesting a lure. The presence of numerous external PDF links, many pointing to benign content, indicates a link farm strategy, potentially to improve SEO for malicious content or to obscure the primary malicious link.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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/wix?keyword=eve+online+tritanium
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/868401_11ef6f2e872548aab9a39a6b7f6c6553.pdf
- https://static.usrfiles.com/ugd/b8c837_9a29c14bffb44ce28fe3157b1f5f3a50.pdf
- https://static.usrfiles.com/ugd/15ebe2_fbf6ef0d1b764d5da0b92a78e281da16.pdf
- https://static.usrfiles.com/ugd/b8c837_6e6942efa0884b5bb4b7dec8ebb0f027.pdf
- https://static.usrfiles.com/ugd/b8c837_dccc252bc9b54ef0aefd27ea420dbcd8.pdf
- https://cdn.shopify.com/s/files/1/0434/9424/4516/files/jajetodogifuwipogalusug.pdf
- https://cdn.shopify.com/s/files/1/0439/7219/8558/files/doratijiraberano.pdf
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/nifagukisuzatefag.pdf
- https://cdn.shopify.com/s/files/1/0431/9900/4827/files/magupuwonugaj.pdf
- https://cdn.shopify.com/s/files/1/0433/2562/0374/files/retinosis_pigmentaria_scielo.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007061.bin` `72f639541b1adddf8299dd278106022a2ac511285709eca45d53d932aba70eff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7061	4668 bytes
`font_01_sfnt_off0000802e.bin` `49fb86eafe68170303243be85b384129539240c5d7a20e2b0baa1e9bc19eb06c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x802E	10352 bytes

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