Malicious PDF — malware analysis report

Static analysis result for SHA-256 928eceb1b9892930…

MALICIOUS

PDF

41.8 KB Created: 2020-09-05 23:38:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86f8288ff65a1a0139a56a2b619cfd25 SHA-1: 91137c8ba2aaa6fb4c207b918f96e1f0a108bc5b SHA-256: 928eceb1b989293026606605511c7c390b7335d245eb4988c038a2465d9f3f6d
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, disguised with keywords related to legal documents. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=agreement+contract+letter+format', suggesting a phishing or scam attempt. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to benign content, likely to mask the malicious redirector.

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=agreement+contract+letter+format
    • https://static.usrfiles.com/ugd/4dd980_e95c3a61c544407492027d04ba758378.pdf
    • https://static.usrfiles.com/ugd/4bb894_c2a4b925e0b64ad4b68bfa0dd1c20cd0.pdf
    • https://static.usrfiles.com/ugd/b7082a_9965de4d7a0d4da292df4e0a8b54f403.pdf
    • https://cdn.shopify.com/s/files/1/0439/4477/1739/files/physical_science_grade_10_answer_series.pdf
    • https://cdn.shopify.com/s/files/1/0431/7036/5589/files/tech_mahindra_technical_interview_questions_and_answers_for_freshers.pdf
    • https://static.usrfiles.com/ugd/097bd5_ca601c1d565342a5a984a84e688b58fa.pdf
    • https://static.usrfiles.com/ugd/30ea26_62c034a40ba748de85b406d3d59c4506.pdf
    • https://static.usrfiles.com/ugd/607883_0f753a16d92e4b5d995fb9da00d227e0.pdf
    • https://cdn.shopify.com/s/files/1/0432/7630/4544/files/73787002628.pdf
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/gixiturekikixunu.pdf
    • https://cdn.shopify.com/s/files/1/0459/7127/5943/files/puxenowimerutovefanuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/77263613501.pdf
    • https://cdn.shopify.com/s/files/1/0436/7056/9113/files/21499579251.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_off00005a4b.bin
195ac151fc0beefce5a12c27815f07a724f2729313c6502bcaaf617906058255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4B 4752 bytes
font_01_sfnt_off00006a4d.bin
9a2cb348bc40dbe33ea0503cc91b5b888a613dfd5e47c477ea4349d3d71526e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4D 9928 bytes
font_02_sfnt_off00008c2a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2A 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.