Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfea883d947b6a32…

MALICIOUS

PDF

42.8 KB Created: 2020-08-18 18:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6198b88469cc703a4a46582557e1e002 SHA-1: 89edaefd326762f4ea02d3a9cce224ab288cc6bc SHA-256: cfea883d947b6a32a4ed5d7d71bd04e711e8054dce5529c082a7573c62db394b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'cea regulations 2010 pdf in english' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm heuristic further indicates a malicious intent to distribute links.

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.com/pify?keyword=cea+regulations+2010+pdf+in+english
    • http://zasez.newmarketcrossfit.com/uploads/1/3/1/4/131406676/rekuta.pdf
    • http://bobeb.mastergardenerscabarrus.org/uploads/1/3/0/9/130969300/b5dd10866c1ec3.pdf
    • http://misigi.stepin2myoffice.com/uploads/1/3/2/7/132710712/zilenukomigujuse.pdf
    • http://files.torontochiropracticcentre.com/uploads/1/3/0/7/130775758/8772828.pdf
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/pony_creator_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/23512720061.pdf
    • https://cdn.shopify.com/s/files/1/0434/5190/8249/files/59350419341.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/38705865840.pdf
    • https://cdn.shopify.com/s/files/1/0433/3371/4070/files/30366202813.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/cfm56_5b_engine.pdf
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/expresses_idiomticas_em_ingls.pdf
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/24988990539.pdf
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/43322494982.pdf
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/nomenclature_of_alkanes_worksheet.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_off00005bb6.bin
8613c52d7f8d7e3bf300d20970636d490017c68e1f254523affe149aa091c702		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 5532 bytes
font_01_sfnt_off00006e86.bin
90b22eb96b0e40863ba2d26de631bc849dbfb65eddbda0faed1b0706731d5aed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E86 9908 bytes
font_02_sfnt_off0000906b.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x906B 4324 bytes

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