Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e228f8ea93aa03e…

MALICIOUS

PDF

63.6 KB Created: 2020-08-17 02:32:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43c45ea130a65c85cb34af6e61d1661d SHA-1: 54376fb93aaba7a54995f7f63c4ccedc02493671 SHA-256: 3e228f8ea93aa03e396d04e9245fd669becff01f689632db11203022b5d2598e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic firing indicates that the PDF links to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious content. 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.com/pify?keyword=gana+achu+song+video
    • http://wumizotex.rlcchouston.org/uploads/1/3/0/8/130814328/cd94ae06015.pdf
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/55881522922.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/rudozivap.pdf
    • https://cdn.shopify.com/s/files/1/0439/4264/1832/files/difference_between_bailable_and_non_bailable_offences.pdf
    • https://cdn.shopify.com/s/files/1/0448/7554/6791/files/careers_of_the_future.pdf
    • https://cdn.shopify.com/s/files/1/0437/8152/1565/files/black_s_law_dictionary_fourth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/7131/5869/files/rbse_class_11_biology_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/2699/5621/files/28961995091.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/php_web_scraping.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/13081764416.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000790f.bin
38b7355a066e05074719a4ea7ad1759bfd6bfeb066876d418108c711c5a0189c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x790F 13752 bytes
font_00_sfnt_off0000677c.bin
9ed81978ce50b6a64e0c89944a8d7baf38c2179945e4634480b9ea0510b4539c
pdf-font-stream PDF embedded font (sfnt) at offset 0x677C 5164 bytes
font_02_sfnt_off00009aab.bin
30b219d1c99d5421e5fcc91852502888718a4797112392121de8d5f8095ed0be
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AAB 7192 bytes
font_03_sfnt_off0000b2a6.bin
25438dae474f582cbc31c6f42a3b1f8fe88abfef79542025d073edb9e7ff175d
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2A6 10440 bytes
font_04_sfnt_off0000d6b5.bin
83707e69862c30ac7f739d7a2770d621d78cda980f876d6bdf8a10ad4ca341ce
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B5 17624 bytes