Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a568dda6686ca76…

MALICIOUS

PDF

48.0 KB Created: 2020-09-05 01:19:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f82e360c6ffce13292b97489517469b SHA-1: e5ccd883bad1fe7cb9366d6e8f7db22040891a0a SHA-256: 1a568dda6686ca7646f9c90690cea1805c2e58984bfd53d5f67b4fc526c2ad96
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.me/wix?keyword=button+onclick+submit+form+react, which is likely used to deliver a second-stage payload. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing its role in the attack. The presence of numerous Shopify links suggests an attempt to blend malicious content with legitimate-looking resources.

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.me/wix?keyword=button+onclick+submit+form+react
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/46206972336.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/jogeju.pdf
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/mass_effect_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/3749/8271/files/28315974033.pdf
    • https://cdn.shopify.com/s/files/1/0436/1355/2802/files/watibotuwamilofep.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/22422887836.pdf
    • https://cdn.shopify.com/s/files/1/0463/0183/9517/files/arduino_print_string_format.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/jajaliv.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_dba31388158f47a1a03adf7d1c8eaf65.pdf
    • https://static.usrfiles.com/ugd/d48fe3_946debd9fdba401a91759bca72f5904f.pdf
    • https://static.usrfiles.com/ugd/b8c837_448da653320e434d9652c41205afd22a.pdf
    • https://static.usrfiles.com/ugd/3f8d85_4d2e208175684401bd43915d01e6c147.pdf
    • https://static.usrfiles.com/ugd/0aab01_bde9e220c05f4265a21d692d591cd586.pdf
    • https://static.usrfiles.com/ugd/dad90e_69758ebd2ada4f8eaaf83165c4df7de1.pdf
    • https://static.usrfiles.com/ugd/b8c837_1fbe7438b0204febb7cdcfe7cc1f4c31.pdf
    • https://static.usrfiles.com/ugd/0df15e_b17d1ffaa11b4ef1b98aca5b1cecda94.pdf
    • https://static.usrfiles.com/ugd/921909_29b5590a1ace440d8a8360bd467a63ad.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.

FilenameKindSourceSize
font_00_sfnt_off00006502.bin
6b6c4a8862ee807232287dc6926f204d13219fb1ed19c8cbc685d45192b24b9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6502 3376 bytes
font_01_sfnt_off00007123.bin
f1c6ff42c92da2c218037f6ffa6af2098c8df8b2723d339ff317c06b055c11a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7123 5280 bytes
font_02_sfnt_off00008304.bin
d13f6ddcb105eb20a2e74ef16b6dde777149fc4fcdefc1da39afa9ca00890ee0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8304 15380 bytes