PDF malware analysis — malicious · bee33c20e4968a31

MALICIOUS

PDF

50.7 KB Created: 2020-09-01 07:13:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 641bc81cb94a1fcb127ba431af7a6215 SHA-1: 433afc2708b70883977d7667876ca2bb26c19100 SHA-256: bee33c20e4968a31ceffa042585c46e2aecf1b91e7fe9bf2e3f9d5d2d1234ced

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to a link farm hosted on static.usrfiles.com. One of these links, however, redirects to a malicious domain (ttraff.cc) which is likely used for phishing or malware distribution. The document body text, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. No scripts were extracted from this sample.

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.cc/wix?keyword=mixer+behringer+vmx+200+usb+manual
- https://static.usrfiles.com/ugd/01bc73_adf59368c9804c679caa828de546c1cf.pdf
- https://static.usrfiles.com/ugd/b8c837_658eb02af51e4b33abb5bdd290bff5be.pdf
- https://static.usrfiles.com/ugd/c6ac46_8a9dbdf3b34341e98a181d600c23655f.pdf
- https://static.usrfiles.com/ugd/45e30f_dd83d77364214d9fb4228c8a702320c3.pdf
- https://static.usrfiles.com/ugd/a64c8c_a2e601f921134dd1bca88ee5ecb1e95f.pdf
- https://static.usrfiles.com/ugd/9b5f63_1c22ceed464f4b4591c8cf0cd95bfef2.pdf
- https://static.usrfiles.com/ugd/429b25_cf8bf40b3e8241b2813eea7197a19c32.pdf
- https://static.usrfiles.com/ugd/cec570_5ad51064d8d440f5aaec6f053ace6581.pdf
- https://static.usrfiles.com/ugd/6cf392_410f47318d97406dbba1ae6029fb6047.pdf
- https://cdn.shopify.com/s/files/1/0429/3004/5091/files/faxaw.pdf
- https://cdn.shopify.com/s/files/1/0431/8950/2110/files/7882001099.pdf
- https://cdn.shopify.com/s/files/1/0428/4894/4284/files/82744680142.pdf
- https://cdn.shopify.com/s/files/1/0429/5196/6873/files/kekam.pdf
- https://cdn.shopify.com/s/files/1/0469/0522/9474/files/affairscloud_current_affairs_january_2018.pdf
- https://static.usrfiles.com/ugd/90c678_2963207261314d0ba0510fc9d80a49cf.pdf
- https://static.usrfiles.com/ugd/b8c837_9ac67685347c418a8d01357a5a585f4a.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_off00007a3a.bin` `73afb48eaeb0c24c64545e7a5636bb83018d4f7d6f3c5c3cca24733e888dcb01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A3A	5336 bytes
`font_01_sfnt_off00008c34.bin` `857956b318e5a8c5f2df59f24b0f199ca6658a99f3298b364179b81aa96e2d4f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C34	10480 bytes
`font_02_sfnt_off0000afe8.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAFE8	4324 bytes

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