Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa5d5405a7990f05…

MALICIOUS

PDF

77.5 KB Created: 2020-08-30 07:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4af90bef6f284c85f23b333561978c9d SHA-1: 75e6c9e72fc72f9df5781e4b24bf5370e740d61b SHA-256: fa5d5405a7990f05714a1a0d8c74b8c8e1d4bd82097d2782aa0be12bc28fad90
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=que+es+un+gobierno+teocratico'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being to a Shopify domain. The document body, though heavily obfuscated, contains the same suspicious URL, reinforcing the intent to redirect the user. 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.cc/wix?keyword=que+es+un+gobierno+teocratico
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/8509450699.pdf
    • https://cdn.shopify.com/s/files/1/0440/8963/9077/files/foxapijomaxilaren.pdf
    • https://cdn.shopify.com/s/files/1/0435/7498/4863/files/annual_editions_technologies_social_media_and_society_21_e.pdf
    • https://cdn.shopify.com/s/files/1/0464/6567/9512/files/carba_nada_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/rikupokimaxizosedizafo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/i_feel_myself._com.pdf
    • https://static.usrfiles.com/ugd/b58d21_aa484770991d4625b6c74f3d7003253e.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab50862beaea45ea91cea1e40b13f046.pdf
    • https://static.usrfiles.com/ugd/286fb8_6bc104bee6e14c1ba6298c83b7afb955.pdf
    • https://static.usrfiles.com/ugd/51c472_5e44688b929a407b9a3d50e8841a2061.pdf
    • https://static.usrfiles.com/ugd/b8c837_0033ea4452db4d5b989bf92049294be2.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
stream_006_off00010b18.bin
2546ba6ff5f6b3c0d5136c0d549a2b4adef00565ab5e4dac7a52f1f63aa60394		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10B18 18136 bytes
font_00_sfnt_off0000d3fd.bin
f255c4bb7bfd2e766a3152c55007307fffaf3def779afe7ec96e534ebef6477c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FD 5136 bytes
font_01_sfnt_off0000e583.bin
31b0934b689810f2389bff0356affffe86acb2e1fe006d6aa95b87751d8e0592		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE583 11500 bytes

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