Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5f5b756bef629e7…

MALICIOUS

PDF

54.1 KB Created: 2020-09-01 04:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61e2807a66894c1e4c8cccfd18459668 SHA-1: b0d147b67155fbd0840ceeefe177e2e9da3f22ca SHA-256: d5f5b756bef629e7da99f7292e419f44063fa4f6322a593baa10afb3871e90b8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, forming a link farm. One of these links, https://ttraff.com/wix?keyword=madarao+snow+report, points to a known malicious redirector. The document body appears to be corrupted or obfuscated, but the presence of numerous links suggests a social engineering attempt to direct users 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/wix?keyword=madarao+snow+report
    • https://static.usrfiles.com/ugd/f1d680_074ba0858ed7483c97594f42fd3de4a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7d1ec383439454f8aa18a8951e5aa54.pdf
    • https://static.usrfiles.com/ugd/3aca14_1d38e0a1e41d4778b9a9776fca85977b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cf55a1e12b049beaef37598af8b68c3.pdf
    • https://static.usrfiles.com/ugd/6908d7_2a9039433e03439681d4138c86f6b261.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_073771534c60487abbf02c82281cc015.pdf
    • https://static.usrfiles.com/ugd/cdb50c_76a1eecfc87d45e7ae6c73e41fed8461.pdf
    • https://static.usrfiles.com/ugd/67e251_2e4a4b4fb67a48b9920916170621ddea.pdf
    • https://static.usrfiles.com/ugd/f3cb45_3f5ba0bb1f3e44f3b53cd9b75d76d87e.pdf
    • https://static.usrfiles.com/ugd/8ab72e_38abf61acf5d4cd58e0ae019be728d57.pdf
    • https://static.usrfiles.com/ugd/67e251_6684f50d51884c1cad04c21188081ea4.pdf
    • https://static.usrfiles.com/ugd/724fb5_c48c4dc96a074842b24736e189707bc6.pdf
    • https://static.usrfiles.com/ugd/6908d7_3cfdb88a13f942adb9b30cae42948743.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7e32b66f6294d6b98eaf0221bf5f332.pdf
    • https://static.usrfiles.com/ugd/6cf0f5_58ded973657c4693a7efe42c8c09f0d0.pdf
    • https://static.usrfiles.com/ugd/3dd68e_596d7631385241eaabc63b1d28f3e3a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_133d4397d13245c8aac7a98d672075fb.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069a4.bin
8a693ea2a7ad65cd5f50ca297f74d15a58231302730745498f85e9426d45ba7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A4 4756 bytes
font_01_sfnt_off000079e8.bin
1250e9074f36ecc54e50570a4d591e9ac3de49d31219613db3381ae677c4b093		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79E8 11944 bytes
font_02_sfnt_off0000a0f8.bin
4de9b6046f14b7a2dc38b4b4ca4d1eb8c63501ac9cd6059026dbb70cb654f282		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F8 17976 bytes
font_03_sfnt_off0000bca9.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA9 4324 bytes

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