PDF malware analysis — malicious · 977dfc7bcc0fa6e8

MALICIOUS

PDF

51.8 KB Created: 2020-09-07 14:08:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 218a433d1795657af4681a14cfe1c026 SHA-1: afb0c8d56133b8582d6e8a6f6daec505a90d8196 SHA-256: 977dfc7bcc0fa6e8b1f3b3caed80f1a4b4dee230fc15f8a33672ca2743a7a62c

130 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 'ttraff.me'. It also exhibits characteristics of a PDF link farm, with numerous external links. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF filename, suggesting a lure. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports a malicious workflow aimed at tricking the user into clicking a link.

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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.me/wix?keyword=free+website+templates+for+education+consultants
- https://static.usrfiles.com/ugd/e6092c_f105d759818b40ed93bc3037738491fc.pdf
- https://static.usrfiles.com/ugd/575363_2e49d3fe891e4bae868b517a994b5cb9.pdf
- https://static.usrfiles.com/ugd/9421c8_3bd23ac96f964916b8b33925d7df58df.pdf
- https://static.usrfiles.com/ugd/97aff7_1723ec152c364f689d37c6c58cc8168f.pdf
- https://cdn.shopify.com/s/files/1/0433/6621/9941/files/oxygen_not_included_power_grid_guide.pdf
- https://cdn.shopify.com/s/files/1/0449/9243/0248/files/temaw.pdf
- https://cdn.shopify.com/s/files/1/0437/6910/2485/files/android_button_text_bold_xml.pdf
- https://static.usrfiles.com/ugd/35ddae_df8e9a92b5124c49afe3301259f2a4ae.pdf
- https://static.usrfiles.com/ugd/55f640_148d2977c6b94b71853c6f21439457ef.pdf
- https://static.usrfiles.com/ugd/b77b08_a2be8455ea8e4a63ad4cc9c6462a8c54.pdf
- https://static.usrfiles.com/ugd/3615fb_294bf0c161e44583aed443684c4fdea6.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000073c6.bin` `fd575111664342cfa0666882a52c74cfcbe9a5aca2689c92a6167c738c556749`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73C6	5372 bytes
`font_01_sfnt_off000085ec.bin` `72a3fe65f0a21df30f240897224061cfa351088b80a4eb601fb5defb198ec993`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85EC	2268 bytes
`font_02_sfnt_off00008ffe.bin` `11435339b346c7baf1749232a2544c056a339e38e3958450ed24ee2fbaa575d2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FFE	10432 bytes
`font_03_sfnt_off0000b36c.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB36C	4324 bytes

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