Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d40c92cfb5e1015…

MALICIOUS

PDF

53.0 KB Created: 2020-08-25 15:21:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c75bdb2f81aa0edeba59f4869212ec6 SHA-1: 1446352a50007cd6d77becf89f8c75ef2185e429 SHA-256: 3d40c92cfb5e101557cc27f9bf2450e51bfff42fcadc73b8159d312cb91249cb
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to malicious infrastructure. The document body also contains the URL https://ttraff.cc/pify?keyword=spore+better+spore+mod, which is likely intended to redirect the user to a malicious site. The presence of a PDF link farm further supports the malicious intent of distributing links to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=spore+better+spore+mod
    • http://files.cuddlykoalaspreschool.org/uploads/1/3/1/3/131381374/a2dbf92e.pdf
    • http://dijox.thespiritofchristmasofchippewacounty.com/uploads/1/3/2/7/132740214/0fbf142862e8.pdf
    • http://files.hkluxco.com/uploads/1/3/2/6/132683014/tolidikuwa-vebumik-suvajujo-limetesave.pdf
    • https://cdn.shopify.com/s/files/1/0436/6116/4697/files/download_audacity_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/wovewu.pdf
    • https://cdn.shopify.com/s/files/1/0461/4950/1091/files/mibutufanasinitipowodop.pdf
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/matlab_cube_root.pdf
    • https://cdn.shopify.com/s/files/1/0431/2835/7030/files/lemukusodilagevazug.pdf
    • https://cdn.shopify.com/s/files/1/0436/3144/4128/files/aha_asa_hemorrhagic_stroke_guidelines_2018.pdf
    • https://cdn.shopify.com/s/files/1/0439/4611/5230/files/pojaniv.pdf
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/zegofikedalatumudisate.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/time_member_guide_capstone.pdf
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/basics_of_programming_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/james_baldwin_another_country.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/liditija.pdf
    • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/70084922538.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e37.bin
5b77f3444bec1e4ebf3e3f61a47e79891769a171a013ec372a68976bf78caafc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E37 5108 bytes
font_01_sfnt_off00009f73.bin
28d405365e81bc2aa3bb467fd77cef66623da8373a1d4738c773e1bc18ac2266		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F73 12184 bytes

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