Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2236db3670a936a…

MALICIOUS

PDF

40.4 KB Created: 2020-08-27 17:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86317e37a2b03540a06f8454034302c8 SHA-1: 10febdd700e10b926cf1b590910d29df4eb10055 SHA-256: b2236db3670a936a19e4dbd1f23bf51e08d416e9303c5ca4bebd0f553dd5ca12
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, pointing to 'https://ttraff.cc/pify?keyword=10095+m%252F+s+to+miles%252F+s'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on shopify.com. The document body, though heavily obfuscated, also contains the primary malicious URL. The combination of these factors strongly suggests a malicious intent, likely to redirect users to a harmful destination.

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/pify?keyword=10095+m%252F+s+to+miles%252F+s
    • http://files.vegantshirts.ca/uploads/1/3/0/8/130873708/jirogol.pdf
    • http://files.dbdfilmservices.com/uploads/1/3/1/3/131379312/4146486.pdf
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/57941707574.pdf
    • https://cdn.shopify.com/s/files/1/0431/4755/9067/files/maple_chase_thermostat.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/dapetakarawatinokawodopu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6775/8997/files/fozixidonaxik.pdf
    • https://cdn.shopify.com/s/files/1/0438/9853/6091/files/pawasegiwup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/beloromawodosuxaso.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/annual_salary_certificate_format_in.pdf
    • https://cdn.shopify.com/s/files/1/0448/7466/2055/files/boson_x_free_mac.pdf
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/cabaret_movie_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0440/0345/9230/files/bagutari.pdf
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/phonics_for_reading.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/area_of_trapezoid_worksheet_grade_4.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_off00004d16.bin
af6b6ee4c2a83ddc929857048a3a7c92611d3d4d9e5dd72745ea4207022763fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D16 4940 bytes
font_01_sfnt_off00005ddc.bin
ee2484e426d011f57c6808027657db0e994fb684bf55f7ad4fe2c2b41b20c7d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDC 9844 bytes
font_02_sfnt_off00007fd7.bin
dfdc6983d3c42b81f9741fa6cdceaab3e97c1fbda00e6274acf933e6ff911e94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD7 16100 bytes

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