PDF malware analysis — malicious · 30a3e0ce020a6d99

MALICIOUS

PDF

68.1 KB Created: 2020-08-17 00:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fb36ad5939f6240fcbdbf23383c1f1c2 SHA-1: b989d812086888253dc442b193743edcad5c5660 SHA-256: 30a3e0ce020a6d997d2c219f596f2b2552b7c85317b007ccd0c071c174795498

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The PDF also hosts a large number of external links, many pointing to Shopify domains, likely as part of a link farm to improve SEO for malicious content.

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.com/pify?keyword=rustom+audio+song++mp4
- http://files.palmspringsmarathonrunners.org/uploads/1/3/2/6/132681901/sonojinu.pdf
- http://files.foundtobefit.com/uploads/1/3/0/7/130738889/rofogakakanosim.pdf
- http://files.pocokiwanis.com/uploads/1/3/2/7/132740665/215609f06.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/download_file_from_github.pdf
- https://cdn.shopify.com/s/files/1/0437/3911/9765/files/trial_of_the_sea_lion_alliance.pdf
- https://cdn.shopify.com/s/files/1/0433/0386/2440/files/dutusukup.pdf
- https://cdn.shopify.com/s/files/1/0430/8379/2548/files/latisafifobulonufu.pdf
- https://cdn.shopify.com/s/files/1/0429/4914/8838/files/dibag.pdf
- https://cdn.shopify.com/s/files/1/0430/1763/3949/files/pudoxuxofaxugugude.pdf
- https://cdn.shopify.com/s/files/1/0439/4047/9131/files/surexolunefijejirumo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87932640634.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_off0000a370.bin` `16b96b23b777b0ea1854e468bb745c5e749017bf2b1c4a1683dbf85326aafb9c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA370	5244 bytes
`font_01_sfnt_off0000b53d.bin` `b877cad56b4764a839d6d431d3a7c306ff1e3b052f55a3f2e5b1757bc76545ef`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB53D	15108 bytes
`font_02_sfnt_off0000e495.bin` `001d00114279cda904ec87ee5caf81ece5266ef333c342f0ca5ce216f4908131`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE495	18776 bytes

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