PDF malware analysis — malicious · ac5f8165ed5c8ccf

MALICIOUS

PDF

53.2 KB Created: 2020-09-04 03:27:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 39415d5d4ae8bafe77092432dc90c006 SHA-1: f1fea14717d66e2fe5fe7cadb381a7de3bf1701b SHA-256: ac5f8165ed5c8ccf1255a3987c41ca867edbd1423e807f162b8c565101c6b0d8

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to ttraff.cc. The document body, though heavily obfuscated, contains the same URL and a reference to 'tamil hd 1080p cartoon movies free', suggesting a lure for free movie downloads. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to static.usrfiles.com. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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.cc/wix?keyword=tamil+hd+1080p+cartoon+movies+free
- https://static.usrfiles.com/ugd/7ff653_0e99881e44514a22b0ac27d93de2ac90.pdf
- https://static.usrfiles.com/ugd/1813b3_2c6502b2e5a344ba8a70278e49777b1f.pdf
- https://static.usrfiles.com/ugd/0af078_848de45343654ccf802be9e7c6761682.pdf
- https://static.usrfiles.com/ugd/34ec99_ce47cecdd7e4420898ed6ee81a34df8b.pdf
- https://static.usrfiles.com/ugd/5438e3_7296a5337d8e4377ab951c51125f07bb.pdf
- https://static.usrfiles.com/ugd/defd8a_e256b221b79c44d7886b075161974d6e.pdf
- https://static.usrfiles.com/ugd/5ecadc_8d3d1b6d6a0945a6b4d760cf9019e546.pdf
- https://cdn.shopify.com/s/files/1/0429/9587/5989/files/borrow_or_lend.pdf
- https://cdn.shopify.com/s/files/1/0444/3491/5495/files/fexak.pdf
- https://cdn.shopify.com/s/files/1/0439/0433/6027/files/branca_de_neve_e_o_caador_livro.pdf
- https://cdn.shopify.com/s/files/1/0438/9843/7784/files/20661540216.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_off00006ba0.bin` `1cf227c87c8185d9350bf8b1cfa5804dd9724cd7a0e75d2923783674cf385677`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BA0	5580 bytes
`font_01_sfnt_off00007e6c.bin` `3a7957c70ccf50972fba9738ab4f3ce034495e864d27b528008cc3b65db601bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E6C	11184 bytes
`font_02_sfnt_off0000a49b.bin` `a4790eb4f6d4154bf27b37f3c17bff3199b0e620de062e7f5c148da0cd1c657b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA49B	16112 bytes
`font_03_sfnt_off0000b96e.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB96E	4324 bytes

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