Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe56081d3a075d94…

MALICIOUS

PDF

48.1 KB Created: 2020-08-19 20:01:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5574d99c29007af99d61f4f45fff148c SHA-1: 927cf0a2c6bf979ce89af1c6ab42652411eded69 SHA-256: fe56081d3a075d947f37aa5802946250ab9ea818ee4b13a0bfdf37567a6f10dc
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, specifically 'https://ttraff.cc/pify?keyword=begum+semibold+free+font'. This link is presented within the document body, disguised as a free font download, to lure users to a malicious site. The document also contains a large number of embedded links to shopify.com domains, characteristic of a link farm, further supporting the malicious intent.

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=begum+semibold+free+font
    • http://fasazug.motherherbcbd.net/uploads/1/3/0/7/130775934/wavefejegi_nogedi_ruzolokixegax_majuki.pdf
    • http://rutiso.macdonaldcounselling.com/uploads/1/3/2/6/132682076/vajefugufumulo_kovigibotexozan_mujiw_silusinumuwevu.pdf
    • http://vumizu.heretohealthwellnessclinic.com/uploads/1/3/0/9/130969204/wipexevi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/tixomulovamokido.pdf
    • https://cdn.shopify.com/s/files/1/0428/9776/8614/files/jejuvurududipif.pdf
    • https://cdn.shopify.com/s/files/1/0440/9180/1752/files/accrued_salaries_and_wages_balance_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/bezokafu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2707/8042/files/jojuwopetufowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/69989088895.pdf
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/gobem.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/camil_sijaric_bunar.pdf
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/24761851719.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/leo_tolstoy_anna_karenina_francais.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/xilasujef.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_off00005dfb.bin
16f4c494b1e571de111dec4161f21e2b2ea6544ac1be05f3d47f32949bf427ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFB 5208 bytes
font_01_sfnt_off00006f9b.bin
5aae63122381da0c2f4ea3f083b05b1b6a350d5ef858dc2d7fdac8bebc5f7172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9B 14860 bytes
font_02_sfnt_off00009ed1.bin
ce90dcb8f80a691a226d66d7b9fb40db13b52946125f6d312f8860abae454107		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ED1 16084 bytes

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