Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db9ca2e7663c1b1…

MALICIOUS

PDF

70.6 KB Created: 2020-08-24 20:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45bef4bd3b7d66128fa4fecb5a867a6b SHA-1: 74b74531566da86fa88addcf62bdc3fcc160984d SHA-256: 9db9ca2e7663c1b12598dba4f0e080e08bb1411c38363d22401c4e10e9ae9b1a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=what+is+directional+coupler+in+waveguide'. This URL is designed to redirect users to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to manipulate search engine results. No scripts were extracted, but the presence of the malicious redirector strongly suggests a phishing or malicious content delivery attempt.

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.ru/pify?keyword=what+is+directional+coupler+in+waveguide
    • http://wadali.pragmaticinstructionaldesign.com/uploads/1/3/2/6/132682090/2263460.pdf
    • http://fusib.thecoretruthplaceofrefuge.com/uploads/1/3/1/3/131398540/8dca369ed.pdf
    • http://files.stjames114.org/uploads/1/3/1/4/131453432/5781496.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4986/files/98649558601.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/politik_identitas_pemilu_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/jadojitukuvozu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5477/4949/files/sedgewick_algorithms_c.pdf
    • https://cdn.shopify.com/s/files/1/0435/9713/6030/files/79915841582.pdf
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/kusasewirekoboka.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/28654899153.pdf
    • https://cdn.shopify.com/s/files/1/0437/6055/0046/files/nugesemetigepipes.pdf
    • https://cdn.shopify.com/s/files/1/0435/4909/8148/files/suffixes_worksheet_for_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdf
    • https://cdn.shopify.com/s/files/1/0437/9561/1805/files/73616853852.pdf
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/cateterismo_cardiaco_en_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/noropuxoga.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_off0000c226.bin
c15307ff87ee560857fe860f60d77345cafa347f2bbc24338bd93feb8a7ff1c0
pdf-font-stream PDF embedded font (sfnt) at offset 0xC226 5500 bytes
font_01_sfnt_off0000d4e7.bin
8ffe88c5bce9930617a66d6a207e89634f2c66ff3c307b27c4bfb1e24771d8db
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E7 10324 bytes
font_02_sfnt_off0000f883.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940
pdf-font-stream PDF embedded font (sfnt) at offset 0xF883 16036 bytes