PDF malware analysis — malicious · f382e7d185cbcfc1

MALICIOUS

PDF

45.5 KB Created: 2020-09-05 08:45:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02170e9beafdb90c1f965bd052e56430 SHA-1: 64fcb29a8cfff6284d1c2eedaabde0b80cb41495 SHA-256: f382e7d185cbcfc1d2b83d24c9aa0dddac830bcb5158d5105262b700fac889fc

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/wix?keyword=background+hd+wallpaper+apk+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0430/9309/8660/files/xituvexegavefolim.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to download potentially malicious content disguised as wallpapers.

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/wix?keyword=background+hd+wallpaper+apk+free
- https://cdn.shopify.com/s/files/1/0430/9309/8660/files/xituvexegavefolim.pdf
- https://cdn.shopify.com/s/files/1/0433/2650/5128/files/45213933783.pdf
- https://cdn.shopify.com/s/files/1/0436/5529/9237/files/gelodixinagamif.pdf
- https://cdn.shopify.com/s/files/1/0432/3131/4077/files/dekobemodevabazifaluribeb.pdf
- https://cdn.shopify.com/s/files/1/0457/3685/3660/files/28027325580.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4498/files/30840728759.pdf
- https://static.usrfiles.com/ugd/7c30af_7d382aa1509d46b3a69148d6bdbc23a7.pdf
- https://static.usrfiles.com/ugd/4ae4db_52df4fc362c74d7eb6ff0b1fd609bc09.pdf
- https://static.usrfiles.com/ugd/b77b08_6e56dcb2290c49beabac4e947e2105f8.pdf
- https://static.usrfiles.com/ugd/0047a4_94042e3175024efaa8624c56e445cf6f.pdf
- https://static.usrfiles.com/ugd/0c268c_9760ac1c05074032b3c2bda8c78f5e52.pdf
- https://static.usrfiles.com/ugd/08e331_d6cce7c570594334ab6ba563f8b3a548.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_off0000667d.bin` `37ccca0b39f90a42257c6f03c6b849e20a8313113d7c454a8b8a1fe1c8e26556`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x667D	5200 bytes
`font_01_sfnt_off00007833.bin` `017ebcaf79fbec3c710df32f4e763596ef7a68921d1576f9d33b50259fc8d803`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7833	10348 bytes
`font_02_sfnt_off00009b6a.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B6A	4324 bytes

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