Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e32a37f8e0ad662…

MALICIOUS

PDF

34.4 KB Created: 2020-08-02 14:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf11e3491c49304a009640b3b8832a66 SHA-1: ce8866d0b0a457fde65190b5c95a27ac68d494b6 SHA-256: 3e32a37f8e0ad662b40892a019b20dafc1e67f88605cce321d452c6a0e756bcd
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.cc/pify?keyword=2001+honda+400ex', is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users through a deceptive link farm to potentially malicious websites, possibly for phishing or malware distribution.

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=2001+honda+400ex
    • http://files.seekadventuremedia.com/uploads/1/3/1/3/131378950/buziruram-busizozaj-genud-gilakaxulelas.pdf
    • http://files.chimscan.net/uploads/1/3/0/7/130738524/1728907.pdf
    • http://files.thepaintedjackalope.com/uploads/1/3/1/4/131437676/kebunade-nosatiporekuxu-bibibagixekil.pdf
    • http://files.fianzafund.org/uploads/1/3/1/4/131452929/xusijevaluwivu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/vavejerijabotulipasufole.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdf
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/45753047488.pdf
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/lurujenazora.pdf
    • https://cdn.shopify.com/s/files/1/0432/7152/0411/files/60670727380.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/kenmore_sewing_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7668/8798/files/best_barbarian_build_diablo_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/resubemibikugaxejexa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/jovigagokogunivukerorawig.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/pet_cool_pad.pdf
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/91868526085.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7639/files/aws_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0434/4859/8678/files/barter_6_zip.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_off000048e7.bin
1f0157d7159bc2d39eb976e43eb0d100c69a1cf33d46b4a5dca39f9e911c9810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48E7 4992 bytes
font_01_sfnt_off000059e8.bin
09c53bddf89a7db301b5950baab5f2e5230d78eb3c2e4bcd9ffdb7a7cfc1d0df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 10268 bytes

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