PDF malware analysis — malicious · b79b84190144c9df

MALICIOUS

PDF

59.0 KB Created: 2020-09-02 03:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 67b4b276a48f840dd2171af6a554c3f4 SHA-1: 6c8c625f9db4a732956593e3fc7ccbce7d1ad64a SHA-256: b79b84190144c9df27594ca67c11a39469b2c9f39044b6e28924733bcd4364a7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a direct link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/wix?keyword=phases+of+biotransformation+of+drugs', which is flagged as malicious. This suggests the document is designed to trick users into clicking the link, likely leading to a phishing or malware download site.

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.link/wix?keyword=phases+of+biotransformation+of+drugs
- https://static.usrfiles.com/ugd/c5d40f_7848988385c048428316ce4894d4ab03.pdf
- https://static.usrfiles.com/ugd/b8c837_e175e5fc7a024085aeb4e680d025616e.pdf
- https://static.usrfiles.com/ugd/b8c837_c93680be0c0b429e94243db76bad95db.pdf
- https://static.usrfiles.com/ugd/3826db_e0ba1cbc81a74d6bacc8f9edc237a6d2.pdf
- https://static.usrfiles.com/ugd/96768c_2eca5226ac1d40d4ad69566af48c41c9.pdf
- https://static.usrfiles.com/ugd/270e53_332ea161c2704a398f15bfeba98fe6a1.pdf
- https://static.usrfiles.com/ugd/ea9bdf_84a1c346f6b648c3b05d3b7a0997640f.pdf
- https://static.usrfiles.com/ugd/8cbfce_a5a86da0794b4601893567a33588a125.pdf
- https://static.usrfiles.com/ugd/b8c837_c1a25227efe24efa84f4228e272ced14.pdf
- https://static.usrfiles.com/ugd/dec231_2a867dbfcca64c459b34330518dd53af.pdf
- https://static.usrfiles.com/ugd/ce77c6_61fc4bc7a2c1458e96546de3ddd48262.pdf
- https://static.usrfiles.com/ugd/b8bbd7_68aede7135514694ac09bb4ae5d2f513.pdf
- https://static.usrfiles.com/ugd/0df15e_2db1454930714a51814b22c5083244b0.pdf
- https://static.usrfiles.com/ugd/b98abb_17e6c6d9d56049ecaca8e04a299b4d3a.pdf
- https://static.usrfiles.com/ugd/b8c837_5a9305f6588b4474adc7c5e9845fe4ff.pdf
- https://static.usrfiles.com/ugd/3b7182_3574daca70d547abb8dc630d35cb5210.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_off0000a791.bin` `70f4174ea71e927176c9a79cbd7c6bf2b0341e33dd1068fece539d109a8aace1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA791	5428 bytes
`font_01_sfnt_off0000b9db.bin` `eab9b7a60de5b3b20c990b13904f24190489aedc1c798054132a9eb48ad74346`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB9DB	10776 bytes

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