Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00366eca8d7a8f3…

MALICIOUS

PDF

45.4 KB Created: 2020-08-31 04:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ef6ff164afb198223098f68904a3a31 SHA-1: 2e22f74259e22c41a22a3979724a7a9bfaf551f5 SHA-256: e00366eca8d7a8f34c1868b4161690939d9a1f968a4b46c7fff16c97b81f46ba
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, including one identified as a malicious redirector. The document body text and heuristics indicate a lure to click a download button, which leads to the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted, limiting the analysis of further execution steps.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+downloadable+pendulum+charts
    • https://cdn.shopify.com/s/files/1/0437/3345/0903/files/44687157957.pdf
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/iala_maritime_buoyage_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/9692/3555/files/hernia_hiatal_tratamento.pdf
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/wejawafutoj.pdf
    • https://static.usrfiles.com/ugd/07625c_2e88e3492dff4d4da52958de79279e9b.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/geometry_basics_angle_relationships_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/wafiko.pdf
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/4057001005.pdf
    • https://cdn.shopify.com/s/files/1/0461/1725/7380/files/structure_of_dna_worksheet_gcse.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/jenumenozixeju.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/male_androgenetic_alopecia.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_off00007176.bin
b3094f07f966cf5c4ae1aab521ca2a36b428aaed80a27cadd1674288179acc23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7176 5500 bytes
font_01_sfnt_off00008408.bin
b9d191f280d2c35877a8bb37d9552317ad7144b6b980f82c98c63ada62b3bd9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8408 10852 bytes

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