Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09a57204cf378f0…

MALICIOUS

PDF

67.2 KB Created: 2020-09-01 13:07:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c2f4a7d3f006401f870d967c56d226 SHA-1: c524c81817497f20e1c8f18b63b366fc10b86f35 SHA-256: f09a57204cf378f029398f20f38632fb70125547009b2255b52142f95625f6bc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, 'https://ttraff.cc/wix?keyword=armored+core+ps3', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of numerous PDF links, including the malicious redirector, indicates a likely attempt to drive traffic to malicious infrastructure, potentially for phishing or malware distribution.

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=armored+core+ps3
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/rupavinagov.pdf
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/college_mate_new_punjabi_song_video.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/45450379966.pdf
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/26823151728.pdf
    • https://static.usrfiles.com/ugd/b8c837_3848ac604c5c4ac0a7e2359d10bd0c0c.pdf
    • https://static.usrfiles.com/ugd/0c41e7_283b87b9034549ec833ef78fabd0e4f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f1774ddf6d114eb98cce210ceae72023.pdf
    • https://static.usrfiles.com/ugd/ecec20_484ccd95495f4257a5d7806cccf4fa69.pdf
    • https://static.usrfiles.com/ugd/739437_2f424e0cc17b4aeab55c0cc1bb5b3f11.pdf
    • https://cdn.shopify.com/s/files/1/0433/4229/9295/files/87876569004.pdf
    • https://cdn.shopify.com/s/files/1/0431/6626/9600/files/64322483947.pdf
    • https://cdn.shopify.com/s/files/1/0439/3995/4856/files/algebraic_long_division_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1044/files/vexatogikebuwumebiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9062/files/gabujezit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9075/6259/files/21887858056.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/88636766208.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_off0000a8fd.bin
ec8a778222d3225bcfd871867a552a5395e6fa373fadf1a1cf0d6ab8dcc944a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8FD 6512 bytes
font_01_sfnt_off0000bef8.bin
f9bc355be2b6eca088726de361d2d842917a599fa818a10ceb66bbffa04f9aee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEF8 4684 bytes
font_02_sfnt_off0000cecf.bin
c16c6d1f7babcc5820bcf0d25936b98b471c4bf964406755943aeb93a6a382c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCECF 10204 bytes
font_03_sfnt_off0000f1b6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B6 4324 bytes

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