Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff605500c74cda63…

MALICIOUS

PDF

48.8 KB Created: 2020-08-31 13:25:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ca6bcadde2cec402046a22d2e86a757 SHA-1: 2a0ecaf9fe08c603caa67180ff303d22ed9bc66b SHA-256: ff605500c74cda636cb5ed1c55ad564c81401fb7b04adf5a7a36ce270a08597b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.club'. The document body, though heavily obfuscated, contains this URL and numerous other links to Shopify domains, suggesting a link farm or redirection strategy. The primary malicious URL is likely intended to lead the user to a phishing or malware distribution site.

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.club/wix?keyword=ferie+til+nord-kypros+2015
    • https://cdn.shopify.com/s/files/1/0457/8974/1222/files/bhai_songs_telugu_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7837/5831/files/ms_excel_basic_to_advanced_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/4th_grade_math_exam.pdf
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/37273779803.pdf
    • https://static.usrfiles.com/ugd/1e4819_e8dabad4c8974fdd9bc4bf8160735922.pdf
    • https://static.usrfiles.com/ugd/b8c837_0886d31f1664441f8bb7cbfafe06eb2f.pdf
    • https://static.usrfiles.com/ugd/ac51ce_eccd2ee255e543a0bed4603460c547e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_991e4aabd90e40d9a871c1730d796e90.pdf
    • https://static.usrfiles.com/ugd/67f5f7_1848adf7b97e4dd59ac57fb4e8cb37e8.pdf
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/vajexebulosajufate.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nomevorijodasulalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/55371640039.pdf
    • https://cdn.shopify.com/s/files/1/0432/4786/1923/files/nuziluranivuve.pdf
    • https://cdn.shopify.com/s/files/1/0437/7817/9221/files/juwoxumopipi.pdf
    • https://static.usrfiles.com/ugd/2f8cea_b78c9a2557ec414c9240bb87caebbbac.pdf
    • https://static.usrfiles.com/ugd/8ab72e_335000ef748b4d3fa1bc356418af289e.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_off000066ea.bin
03b77dcf3b76ec7574bfc9f034ccaef7f34df7df42609e8c4aadc1a3e4df2d81
pdf-font-stream PDF embedded font (sfnt) at offset 0x66EA 5348 bytes
font_01_sfnt_off00007949.bin
6a64221121d17c22d20cd812ac5793e0a910190d01d91f86d3edef172cbe2998
pdf-font-stream PDF embedded font (sfnt) at offset 0x7949 11068 bytes
font_02_sfnt_off00009e52.bin
700ba3d404347fca3a8f0d0887858e2d3068fea877b30f8221cc86f54de4ccbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E52 16460 bytes